Online Tools

Handy Physics tools that run entirely in your browser — nothing is uploaded.

Units & Dimensions

Physics Unit Converter

Convert common length, mass, time, speed, energy, pressure and temperature units.

Vectors

Vector Calculator

Magnitude, addition, subtraction, dot product, cross product and angle for 3D vectors.

Mechanics & Motion

Projectile Motion Calculator

Compute time of flight, range, maximum height and impact speed from speed, angle and initial height.

Electricity

Ohm's Law Calculator

Enter any two of voltage, current, resistance and power to compute the other two.