📘 Quick Formulas
🔬 Scientific Reference Dashboard
Speed of Light
299,792,458 m/s
299,792,458 m/s
Gravity
9.80665 m/s²
9.80665 m/s²
Avogadro
6.022×10²³
6.022×10²³
π = 3.14159265
Atomic No. H = 1
Atomic No. O = 8
Earth Radius
6371 km
6371 km
Moon Distance
384,400 km
384,400 km
E = mc²
DNA: Double Helix
Water: H₂O
📘 CBSE Quick Formulas
Physics
v=u+at
s=ut+½at²
F=ma
P=W/t
V=IR
v=u+at
s=ut+½at²
F=ma
P=W/t
V=IR
Physics
P=VI
E=Pt
f=1/T
ρ=m/V
P=VI
E=Pt
f=1/T
ρ=m/V
Maths
(a+b)²
(a-b)²
a²-b²
(a+b)²
(a-b)²
a²-b²
Maths
Area=πr²
C=2πr
TSA=2πr(r+h)
Area=πr²
C=2πr
TSA=2πr(r+h)
Maths
sin²θ+cos²θ=1
tanθ=sinθ/cosθ
sin²θ+cos²θ=1
tanθ=sinθ/cosθ
Chemistry
H₂O
CO₂
NaCl
H₂SO₄
H₂O
CO₂
NaCl
H₂SO₄
Chemistry
CaCO₃
NH₃
CH₄
HCl
CaCO₃
NH₃
CH₄
HCl
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Photosynthesis:
6CO₂+6H₂O→C₆H₁₂O₆+6O₂
Photosynthesis:
6CO₂+6H₂O→C₆H₁₂O₆+6O₂
🔄 Conversion Center
1 km = 1000 m
1 m = 100 cm
1 cm = 10 mm
1 kg = 1000 g
1 hr = 3600 sec
1 L = 1000 mL
°F → °C = (F-32)×5/9
°C → °F = (C×9/5)+32
📚 Extended Class 10 Quick Formulas & Concepts
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
Physics
Force=ma, Momentum=mv, Work=Fs
Force=ma, Momentum=mv, Work=Fs
Physics
Power=W/t, Energy=Pt
Power=W/t, Energy=Pt
Physics
Ohm Law: V=IR
Ohm Law: V=IR
Physics
Density=m/V
Density=m/V
Physics
Pressure=F/A
Pressure=F/A
Physics
Acceleration=(v-u)/t
Acceleration=(v-u)/t
Maths
(a+b)²=a²+2ab+b²
(a+b)²=a²+2ab+b²
Maths
(a-b)²=a²-2ab+b²
(a-b)²=a²-2ab+b²
Maths
a²-b²=(a+b)(a-b)
a²-b²=(a+b)(a-b)
Maths
Area Circle=πr²
Area Circle=πr²
Maths
Circumference=2πr
Circumference=2πr
Maths
Surface Area & Volume formulas
Surface Area & Volume formulas
Maths
Trigonometric Ratios
Trigonometric Ratios
Chemistry
Acid + Base → Salt + Water
Acid + Base → Salt + Water
Chemistry
H₂SO₄, HCl, HNO₃
H₂SO₄, HCl, HNO₃
Chemistry
NaOH, KOH, Ca(OH)₂
NaOH, KOH, Ca(OH)₂
Chemistry
Periodic trends summary
Periodic trends summary
Biology
Photosynthesis equation
Photosynthesis equation
Biology
Respiration equation
Respiration equation
Biology
Cell → Tissue → Organ → System
Cell → Tissue → Organ → System
Biology
Human digestive system
Human digestive system
Biology
Human circulatory system
Human circulatory system
🔄 Advanced Conversion Center
Meter ↔ Nanometer
1 m = 1,000,000,000 nm
1 m = 1,000,000,000 nm
Meter ↔ Centimeter
1 m = 100 cm
1 m = 100 cm
Meter ↔ Millimeter
1 m = 1000 mm
1 m = 1000 mm
Kilometer ↔ Meter
1 km = 1000 m
1 km = 1000 m
Kilogram ↔ Gram
1 kg = 1000 g
1 kg = 1000 g
Liter ↔ Milliliter
1 L = 1000 mL
1 L = 1000 mL
Hour ↔ Second
1 hr = 3600 sec
1 hr = 3600 sec
m/s ↔ km/h
×3.6
×3.6
°F ↔ °C
Area conversions
Volume conversions
Mass conversions
Physics – Work, Energy and Power
Work is done when force causes displacement. Work = Force × Distance. Power is the rate of doing work. Power = Work ÷ Time.
Work is done when force causes displacement. Work = Force × Distance. Power is the rate of doing work. Power = Work ÷ Time.
Chemistry – Acids and Bases
Acids release hydrogen ions in solution and turn blue litmus red. Bases release hydroxide ions and turn red litmus blue.
Acids release hydrogen ions in solution and turn blue litmus red. Bases release hydroxide ions and turn red litmus blue.
Chemistry – pH Scale
The pH scale ranges from 0 to 14. Values below 7 are acidic, 7 is neutral and above 7 are basic.
The pH scale ranges from 0 to 14. Values below 7 are acidic, 7 is neutral and above 7 are basic.
Biology – Photosynthesis
Green plants prepare food using sunlight, carbon dioxide and water. Equation: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.
Green plants prepare food using sunlight, carbon dioxide and water. Equation: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.
Biology – Human Heart
The human heart is a muscular organ with four chambers responsible for pumping blood throughout the body.
The human heart is a muscular organ with four chambers responsible for pumping blood throughout the body.
Mathematics – Quadratic Identity
(a+b)² = a² + 2ab + b². This identity is frequently used in simplification and factorization questions.
(a+b)² = a² + 2ab + b². This identity is frequently used in simplification and factorization questions.
Mathematics – Trigonometry
sin²θ + cos²θ = 1 is the most important trigonometric identity for Class 10 examinations.
sin²θ + cos²θ = 1 is the most important trigonometric identity for Class 10 examinations.
Mathematics – Circle
Area of Circle = πr². Circumference = 2πr. These formulas are repeatedly asked in board examinations.
Area of Circle = πr². Circumference = 2πr. These formulas are repeatedly asked in board examinations.