Physics calculator directory

Why use this hub?

• Track each calculation with clear step logs.
• All calculations run locally in your browser.
• Share exact inputs with reusable links.

Jump by category.

Plain guide

Pick one topic first. Start with one tool.

Keep units simple and consistent. Change one input at a time.

Read the steps and compare with your own notes.

If the answer looks off, check signs and unit prefixes.

For lab or exam work, record inputs and outputs together.

Featured physics tools

• Ohm's law and simple DC circuit calculator.
  Calculate voltage, current, resistance, power, and simple series/parallel equivalents with steps Ohm's law formulas.
• Projectile motion calculator.
  Calculate time of flight, range, maximum height, and required launch speed for a target with projectile-motion steps.
• Snell's law Refraction Calculator.
  Calculate refraction angle, critical angle, and total internal reflection with Snell's law steps.
• Ideal Gas Law Calculator with Steps.
  Solve PV=nRT, combined gas laws, and gas density or molar mass with automatic unit conversion.
• Work, energy & power calculator.
  Compute work, kinetic and potential energy change, and average power from force, distance, mass, speed, and height.

All tools by category

• Calorimetry calculator.
  Calculate heat, specific heat, temperature change, and final equilibrium temperature for two-substance calorimetry.
• Circular motion & centripetal force calculator.
  Calculate centripetal acceleration, force, angular speed, period, frequency, and banked-curve angle with formulas.
• Dimensional analysis & unit consistency checker.
  Check unit consistency, parse compound units, and build Buckingham Pi groups with step logs and shareable results.
• Kinematics: SUVAT / Projectile / Free Fall (steps).
  Solve SUVAT unknowns, 2D projectile motion and free-fall on one page.
• Lens & Mirror Ray Diagram Calculator.
  Compute image distance, magnification, and rays for thin lenses or mirrors with steps and a live diagram.
• Lens and mirror equation & magnification calculator.
  Solve thin-lens and spherical-mirror equations to get image distance, magnification, and image type with steps.
• Momentum & 1D collision calculator.
  Solve 1D collisions with momentum conservation and restitution to get final velocities and energy change with steps.
• Simple harmonic motion (SHM) calculator.
  Compute SHM period, angular frequency, speed, acceleration, and energy for mass-spring and small-angle pendulum.
• Simple Harmonic Motion Simulator.
  Simulate SHM with analytic, Euler-Cromer, or RK4 methods and review period, energy, and plots.
• Standing Waves Frequency Calculator.
  List standing-wave mode frequencies and wavelengths for strings and air columns from basic inputs.
• Thermodynamic process & PV diagram calculator.
  Compute work, ΔU, and heat for ideal-gas isothermal, isobaric, isochoric, adiabatic, and polytropic processes.

Choose the physics page by the kind of question

Use this hub when you know the problem area but not the exact calculator. The quickest way is to sort the task into motion, electricity, waves, optics, or unit-heavy science support.

Where to go first

• Mechanics: motion, force, energy, work, and classroom physics formulas
• Electricity and electronics: Ohm's law, RC/RL/RLC, voltage divider, and circuit checks
• Waves and optics: frequency, wavelength, refraction, and related comparisons
• General science support: unit analysis and conversion before you move into a domain-specific page

When to leave this hub

Switch to chemistry, earth science, or astronomy when the main question is no longer about physics formulas and becomes domain-specific interpretation.

FAQ

Related hubs

• Electronics hub
  Open this when the next step is circuit behavior, RC/RL/RLC, LC resonance, or resistor workflows.
• Chemistry hub
  Switch here when the question is about reactions, concentration, pH, or solution prep rather than physics formulas.
• Earth science & environment hub
  Use this hub for geoscience, hazard, weather, and environmental calculations.
• Science & engineering hub
  Return here if you need to step back and choose a different science family.