What physics topics and formulas are covered?

It covers kinematics, Newton's laws, friction, projectile motion, work and energy, momentum and impulse, waves, Ohm's law, and basic thermodynamics – the core topics for high-school and first-year university physics.

Can I choose different measurement units?

Yes. Select the unit for each input (e.g., m/s or km/h for speed, kg or g for mass). The calculator handles the conversion internally so your answer is in consistent units.

Does it show the formula used?

Yes. The selected formula is displayed with the values substituted in so you can write up your solution and understand every step.

How accurate are the physics results?

Results are numerically accurate to the values you enter. Differences from a textbook answer usually come from rounding significant figures differently or using slightly different physical constants (e.g., g = 9.8 vs 9.81 m/s²).

Is this calculator suitable for homework and exam preparation?

Yes – it is excellent for checking your working and understanding formula relationships. Always show your own working in exams as required by your teacher or examiner.

Physics Calculator – Solve Velocity, Force & Energy Formulas Free

Solve common physics formulas – velocity, force, energy, momentum, and more – by entering known values and getting instant answers with the formula displayed.

Physics Topic

v = d / t

Velocity equals distance divided by time

Solve For

Physical Constants

g (gravity) = 9.81 m/s²

c (speed of light) = 3×10⁸ m/s

e (electron charge) = 1.6×10⁻¹⁹ C

π = 3.14159...

What is this tool?

A Physics Calculator is a free scientific tool that helps students solve physics problems by selecting a formula and plugging in known values. It covers kinematics (displacement, velocity, acceleration), dynamics (Newton's laws, friction, force), energy (kinetic, potential, work), momentum, waves, basic electricity (Ohm's law), and thermodynamics. Every result shows the formula used and its step-by-step substitution so students learn the physics, not just get a number. Ideal for high-school and first-year university physics.

How to use this tool?

1. Choose the physics topic from the category menu (e.g., Kinematics, Forces, Energy, Momentum). 2. Select the specific formula you need (e.g., v = u + at, F = ma, KE = ½mv²). 3. Enter the known values in the labeled input fields. 4. Select the correct units for each value (m/s, kg, N, J, etc.) to avoid conversion errors. 5. Click "Calculate" – the unknown variable is solved instantly. 6. Review the displayed formula and substituted values to understand the method before writing up your solution.

Frequently Asked Questions

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