Important Formulas for NEET 2025: Download PDF Formulas Sheet

Chapter

Concept / Formula Name

Important Formula

Mechanics

Newton’s Second Law

$F = ma$

Work Done

$W = F \cdot d \cdot \cos{\theta}$

Kinetic Energy

$KE = \frac{1}{2}mv^2$

Potential Energy

$PE = mgh$

Equations of Motion

$v = u + at$, $s = ut + \frac{1}{2}at^2$, $v^2 = u^2 + 2as$

Thermodynamics

First Law of Thermodynamics

$\Delta Q = \Delta U + \Delta W$

Carnot Engine Efficiency

$\eta = 1 - \frac{T_C}{T_H}$

Electricity & Magnetism

Coulomb’s Law

$F = \frac{1}{4\pi \varepsilon_0} \cdot \frac{q_1 q_2}{r^2}$

Electric Field

$E = \frac{F}{q} = \frac{1}{4\pi \varepsilon_0} \cdot \frac{Q}{r^2}$

Electric Potential

$V = \frac{1}{4\pi \varepsilon_0} \cdot \frac{Q}{r}$

Capacitor Energy

$U = \frac{1}{2}CV^2 = \frac{1}{2}QV = \frac{Q^2}{2C}$

Electrostatics

Ohm’s Law

$V = IR$

Electric Power

$P = VI$

Magnetic Force

$F = qvB \sin{\theta}$

Biot-Savart Law

$B = \frac{\mu_0 I}{2\pi r}$

Modern Physics

Energy of a Photon

$E = hf$

Mass-Energy Equivalence

$E = mc^2$

Branch

Concept

Important Formula

Physical Chemistry

Ideal Gas Law

$PV = nRT$

Molarity

$M = \frac{n}{V}$

pH of Solution

$\text{pH} = -\log [\text{H}^+]$

Rate of Reaction

$r = k[\text{A}]^m[\text{B}]^n$

Organic Chemistry

Empirical Formula

$\text{EF} = \frac{\%\ \text{composition}}{\text{atomic mass}}$

General Formula of Alkanes

$C_nH_{2n+2}$

General Formula of Alkenes

$C_nH_{2n}$

General Formula of Alkynes

$C_nH_{2n-2}$

Inorganic Chemistry

Equivalent Weight

$\text{Equivalent weight} = \frac{\text{Molar mass}}{n\text{-factor}}$

Faraday’s Law

$W = \frac{EIT}{96500}$

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Chapter

Concept / Formula Name

Formula / Ratio

Genetics

Monohybrid cross

3:1

Dihybrid Cross Ratio

9 : 3 : 3 : 1

Probability Formula

$P = \frac{\text{Favourable outcomes}}{\text{Total outcomes}}$

Ecology

Exponential Population Growth

$N_t = N_0 e^{rt}$

Logistic Growth (Bonus)

$N_t = \frac{K N_0}{K + (N_0)(e^{-rt})}$

Plant Physiology

Water Potential

$\Psi = \Psi_s + \Psi_p$

Transpiration Pull (Bonus)

Cohesion-Tension Theory (qualitative, no formula)

Physics

Chemistry

Biology

Laws of Motion

Chemical Bonding

Molecular Basis of Inheritance

Thermodynamics

p-Block Elements

Animal Kingdom

Current Electricity

Coordination Compounds

Biotechnology – Principles & Processes

Magnetic Effect & Magnetism

Equilibrium

Principles of Inheritance & Variation

Electromagnetic Induction & AC

Solutions

Biotechnology and Its Applications

Work, Energy & Power

Hydrocarbons

Biomolecules

Optics

Alcohols, Phenols & Ethers

Cell Cycle and Cell Division

Atoms and Nuclei

Biomolecules