Engineering utilities
Ohm's Law and Resistors
Solve V, I, R and P from any two, and read resistor colour bands.
Unit Converter
Length, mass, pressure, energy, power, temperature and more.
- pascal (Pa)100000
- kilopascal (kPa)100
- megapascal (MPa)0.1
- bar1
- millibar (mbar)1000
- atmosphere (atm)0.9869232667
- pound per square inch (psi)14.50377377
- millimetre of mercury (mmHg)750.0615758
Try next
- Calculators
Scientific Calculator
Expressions with functions, constants, degrees or radians, and history.
- Developer tools
JWT Decoder
Decode a JSON Web Token, read its claims and expiry, verify an HMAC signature.