Calculators – Free Online Physics, Chemistry & Maths Calculators

Free online calculators for Class 11 & 12 Physics, Chemistry, Maths and Biology — instant results with step-by-step formulas. No sign-up, works on any device. Great for JEE, NEET, SAT, AP, IB and A-Level.

Use these free online Physics, Chemistry and Maths calculators for Class 11 & 12, JEE, NEET, CBSE and other exams. Every tool is interactive, shows the formula and step-by-step result, and works on mobile and desktop — no sign-up needed. Prefer notes? Get our free PCM notes & formula sheets.

Physics Calculators

⚛️Capacitance RC Calculator ⚛️Centripetal Force Calculator ⚛️Coulombs Law Calculator ⚛️Doppler Calculator ⚛️Doppler Effect Calculator ⚛️Escape Velocity Calculator ⚛️Friction Force Calculator ⚛️Gravitational Potential Energy Calculator ⚛️Hookes Law Calculator ⚛️Kinetic Energy Calculator ⚛️Momentum Impulse Calculator ⚛️Newtons Second Law Calculator ⚛️Ohms Law Calculator ⚛️Projectile Motion Calculator ⚛️Snells Law Calculator ⚛️Torque Calculator ⚛️Work Done Calculator ⚛️Lens & Mirror Formula Calculator ⚛️Lens Maker’s Formula Calculator ⚛️Photoelectric Effect Calculator ⚛️De Broglie Wavelength Calculator ⚛️Mass Defect & Binding Energy Calculator ⚛️Specific Heat & Latent Heat Calculator ⚛️Young’s Modulus & Elasticity Calculator ⚛️LCR Circuit Resonance Calculator ⚛️Faraday’s Law of Induction Tool ⚛️Bohr Radius & Energy Level Calculator ⚛️Rydberg Equation Calculator

Chemistry Calculators

Biology & Health Calculators

🧬Biodiversity Index 🧬Blood Group Inheritance 🧬BMI Calculator 🧬BMI Calories 🧬BMR Calculator 🧬Body Fat Percentage Calculator 🧬Dnarna Sequence Tool 🧬Genetic Linkage Recombination 🧬Genetics Cross Calculator 🧬Inheritance Probability 🧬Mendelian Genetics Calculator 🧬Population Growth 🧬Punnett Square 🧬Respiratory Quotient 🧬Stomatal Index 🧬Water Potential 🧬Water Potential Calculator

More Calculators

🔢Bernoullis Principle Calculator 🔢Power Calculator 🔢Radioactive Decay Calculator 🔢Sequences Series Calculator 🔢Simple Pendulum Period Calculator

Also try our interactive tools & simulators, or get full Class 11 and Class 12 notes.

Frequently Asked Questions about our free calculators

Are these online calculators free to use?

Yes. Every Physics, Chemistry and Maths calculator and simulator on PCM Notes is 100% free, works in your browser, and needs no sign-up, login or download.

Which subjects and exams do the calculators cover?

The calculators cover Class 11 and 12 Physics, Chemistry and Maths, and are useful for CBSE/ICSE boards, JEE, NEET, SAT, GCSE, IB and A-Level preparation.

Do the calculators show step-by-step solutions?

Yes. Most tools show the formula used, step-by-step working and an interactive visual or graph, so you can understand the method, not just the final answer.

Can I use these calculators for JEE and NEET preparation?

Yes. They are built around standard NCERT and exam formulas, making them ideal for fast practice and revision for JEE, NEET and board exams.

Do I need to install any app to use them?

No. Every calculator is browser-based and works on mobile, tablet and desktop — just open the page and start calculating instantly.

Are the results based on the correct formulas?

Yes. Each calculator uses the standard scientific formula for that topic and shows it on the page, so you can verify the method against your textbook.

Explore more free PCM resources

Looking for more? Download free Class 11 & 12 PCM notes and formula sheets, try our interactive simulators and visual tools, or get the complete Class 11 PCM bundle and Class 12 PCM bundle. Read more on the PCM Notes blog.

Last updated: June 2026 — calculators follow standard NCERT / CBSE formulas.