# Physics Calculator

> Sixteen physics formulas with step-by-step working: kinematics, forces, energy, power, waves, heat, lenses and even E = mc² and time dilation.

Free physics calculator for 16 formulas: velocity, acceleration, force, momentum, kinetic and potential energy, work, power, projectile motion, wave speed, heat, lens equation, E=mc², time dilation and length contraction - with every substitution step shown.

- **Canonical:** https://www.ailovekit.com/calculators/physics-calculator/
- **Category:** Calculator
- **Processing:** Runs entirely in your browser. Files are never uploaded to AiLoveKit servers.

## How It Calculates

- **Formula:** formula-specific: e.g. KE = ½ × m × v², Range = v² sin(2θ) ÷ g

- **Built-in formulas:** 16 (speed-distance-time, kinetic-energy, final-velocity, force, momentum, potential-energy, work, mechanical-power, projectile, wave-speed, wave-period, heat-energy, lens-equation, mass-energy, time-dilation, length-contraction)

All calculation runs locally in your browser; results update as you type and include the substituted working.

## From Homework Kinematics to Relativity

AiLoveKit's **physics calculator** covers the formulas students and engineers reach for most: speed-distance-time, uniformly accelerated motion, Newton's second law, momentum, kinetic and potential energy, work, mechanical power and full projectile motion - then waves, heat capacity, the thin lens equation and the famous relativistic results.

## Every Step Written Out

- **Step-by-step** - intermediate quantities (flight time, peak height, image distance) appear alongside the main result.

- **Proper units** - results carry joules, watts, pascals, meters per second and more, never bare numbers.

- **Instant** - change any input and the solution rewrites itself immediately.

Working with circuits as well? Continue to the [Electrical Calculator](https://www.ailovekit.com/calculators/electrical-calculator/) for Ohm's law, power and resistor networks.

## Frequently Asked Questions

**Which topics are covered?**

Mechanics (velocity, acceleration, force, momentum, energy, work, power, projectile motion), waves (speed and period), thermodynamics (heat), optics (thin lens equation and magnification) and relativity (E = mc², time dilation, length contraction).

**What units should I use?**

SI units throughout: meters, seconds, kilograms, joules, watts, hertz. Inputs are labeled with their unit and results carry the correct derived unit.

**How is projectile motion computed?**

With the standard flat-ground, no-drag equations: range = v² sin(2θ) ÷ g, flight time = 2v sin(θ) ÷ g and peak height = v² sin²(θ) ÷ 2g.

**Are relativity results accurate?**

Yes - time dilation and length contraction use the exact Lorentz factor γ = 1 ÷ √(1 − β²) with β as a fraction of the speed of light.

---

Source: https://www.ailovekit.com/calculators/physics-calculator/
Part of AiLoveKit: https://www.ailovekit.com/
Machine-readable index: https://www.ailovekit.com/llms.txt