Free Online Physics Unit Converterwith Formulas & Examples

Convert units instantly across energy, force, power, pressure, and more – with clear formulas and real-world examples to help you learn.

Choose a Category

Select a physics category to start converting units with detailed formulas and explanations.

Joules, Calories, kWh, eV

Newtons, Dynes, Pounds-force

Watts, Horsepower, BTU/hr

Pascals, Atmospheres, Bar

m/s, km/h, mph, knots

Celsius, Fahrenheit, Kelvin

Meters, Feet, Inches, Miles

Kilograms, Pounds, Ounces

Get real-time unit conversions with high precision calculations

Learn with clear mathematical formulas and detailed explanations

Clean, fast interface with no distractions or data collection