Mihsaba›Physics

Physics

Physics calculators cover motion, forces, energy, heat, fluids, waves and optics with clear units and reviewable equations.

Available calculators

Calculate motion, energy, waves, heat, fluids, and optics.

½mv²

Kinetic Energy Calculator

Solve for kinetic energy, mass or speed from KE=½mv² with common mass, speed and energy units.

v=fλ

Wavelength to Frequency Calculator – λ, f & Wave Speed

Convert wavelength to frequency or frequency to wavelength, or solve wave speed from v=fλ, with multiple units and a vacuum-light-speed preset.

p=mv

Momentum Calculator – p = mv, Mass & Velocity

Calculate linear momentum from mass and velocity, or solve for mass or velocity from p=mv, with common units and signed 1D direction.

mgh

Gravitational Potential Energy Calculator

Solve gravitational potential energy, mass, height or gravitational acceleration from U=mgh near a surface where g can be treated as constant, with SI and imperial units.

↗

Projectile Motion Calculator

Calculate range, flight time, maximum height, velocity components and impact speed from launch speed, angle, initial height and gravity, neglecting air resistance.

mv²/r

Centripetal Force Calculator

Solve centripetal force, mass, radius or speed from F=mv²/r, or use angular speed with F=mrω², including centripetal acceleration and SI/imperial units.

Q=mcΔT

Specific Heat Calculator

Solve sensible-heat equation Q=mcΔT for heat energy, mass, specific heat capacity or temperature change with common energy and mass units.

W=Fd

Work Calculator (Physics)

Calculate mechanical work from force, displacement and their angle, with the parallel force component and positive/zero/negative work classification.

P=W/t

Mechanical Power Calculator

Calculate mechanical power from work and time or from force, velocity and angle, with watts, kilowatts and mechanical horsepower.

F=kx

Hooke’s Law Calculator

Solve spring-force magnitude, spring constant or displacement from Hooke’s law, with elastic potential energy.

Gm₁m₂/r²

Gravitational Force Calculator

Calculate gravitational attraction between two masses using Newton’s law of universal gravitation, plus each mass’s acceleration toward the other.

F=μN

Friction Force Calculator

Calculate friction magnitude from coefficient and normal force directly, or from mass and incline angle with the parallel gravity component.

J=Δp

Impulse & Momentum Calculator

Calculate impulse from force and time, resulting velocity change for a known mass, and initial/final momentum.

m₁v₁+m₂v₂

Perfectly Inelastic Collision Calculator

Calculate the shared final velocity for a 1D perfectly inelastic collision, with momentum and kinetic-energy loss.

g↓

Free Fall Calculator

Calculate impact time and final vertical velocity from a known height with optional initial downward velocity and selectable gravity.

vₑ

Escape Velocity Calculator

Calculate escape velocity from a body’s mass and radius from its center, plus local gravity and circular-orbit speed at that radius.

Simple Pendulum Calculator

Calculate a simple pendulum’s period and frequency from length and gravitational acceleration using the small-angle approximation.

ΔL

Thermal Expansion Calculator

Calculate length change and final length from initial length, linear expansion coefficient and temperature change.

Q=mL

Latent Heat Calculator

Solve energy, mass or specific latent heat during a phase change using Q=mL.

kAΔT/L

Heat Conduction Calculator

Estimate steady heat-transfer rate through a flat layer from conductivity, area, temperature difference and thickness, with optional energy over time.

ρgh

Hydrostatic Pressure Calculator

Calculate fluid gauge pressure from density, gravity and depth, plus absolute pressure when surface pressure is provided.

ρgV

Buoyant Force Calculator

Calculate buoyant force from fluid density, displaced volume and gravity, plus displaced-fluid mass.

√2gh

Torricelli’s Law Calculator

Calculate ideal efflux velocity from liquid head and volumetric flow rate from the opening area using Torricelli’s law.

M=v/a

Mach Number Calculator

Calculate Mach number from object or flow speed and local speed of sound, with an approximate flow-regime label and speed in km/h.

½ρCdAv²

Drag Force Calculator

Calculate drag force from fluid density, drag coefficient, reference area and speed, with dynamic pressure and drag power.

vₜ

Terminal Velocity Calculator

Calculate terminal velocity for a falling body from mass, gravity, fluid density, drag coefficient and reference area.

½ρCLAv²

Lift Force Calculator

Calculate lift force from fluid density, lift coefficient, reference area and speed, with dynamic pressure.

f′

Doppler Effect Calculator

Calculate observed sound frequency when source and observer move toward each other through a stationary medium.

n₁sinθ₁

Snell’s Law Calculator

Calculate refraction angle from refractive indices and incidence angle, with total internal reflection and critical-angle checks.

1/f

Thin Lens Calculator

Calculate image distance and magnification from focal length and object distance using the thin-lens sign convention.

mλ=d sinθ

Diffraction Grating Calculator

Calculate diffraction angle from grating line density, wavelength and order, with the maximum possible order.

E=hν

Photon Energy Calculator

Calculate photon frequency and energy in joules, electronvolts and kilojoules per mole from wavelength.

½ᵗ

Radioactive Decay Calculator

Calculate remaining and decayed quantity after a given time from initial amount and half-life.

How to choose a calculator

Keep units consistent and verify that the physical model applies, especially for idealized models or empirical coefficients.