Physics calculators

Physics Unit Calculators

10 tools

Force, pressure, energy, power, speed, temperature, frequency, and magnetic-field unit pairs. Tools may appear in more than one topic.

Popular in Units

Featured tools from the Family registry.

Newton to Lbf Converter Convert force between newtons and pound-force (1 lbf = 4.4482216152605 N). Runs locally in your browser.
PSI to Bar Converter Convert between pound-force per square inch and bar. Runs locally in your browser.
Joule to eV Converter Convert energy between joules and electronvolts (exact SI factor). Runs locally in your browser.
Watts to Horsepower Converter Convert power between watts and mechanical horsepower (1 hp = 745.6998715822702 W). Runs locally in your browser.

Every live calculator in this family. URLs stay /calc/physics/…

Binary to Hex Converter Convert unsigned integers between binary and hexadecimal. Runs locally in your browser.
Celsius to Kelvin Converter Convert between Celsius and Kelvin with hard absolute-zero checks. Runs locally in your browser.
Hz to Rad/s Converter Convert between hertz and radians per second with ω = 2πf. Runs locally in your browser.
Joule to eV Converter Convert energy between joules and electronvolts (exact SI factor). Runs locally in your browser.
kWh to Joules Converter Convert energy between kilowatt-hours and joules (1 kWh = 3.6 MJ). Runs locally in your browser.
m/s to km/h Converter Convert speed between metres per second and kilometres per hour (×3.6). Runs locally in your browser.
Newton to Lbf Converter Convert force between newtons and pound-force (1 lbf = 4.4482216152605 N). Runs locally in your browser.
PSI to Bar Converter Convert between pound-force per square inch and bar. Runs locally in your browser.
Tesla to Gauss Converter Convert magnetic flux density between tesla and gauss (1 T = 10000 G). Runs locally in your browser.
Watts to Horsepower Converter Convert power between watts and mechanical horsepower (1 hp = 745.6998715822702 W). Runs locally in your browser.