About the Pressure Converter
This pressure converter provides fast, client-side conversions between common pressure units: pascals (Pa), kilopascals (kPa), bar and pounds per square inch (psi). Calculations are performed entirely in your browser — nothing is sent to a server — so results are instant and private.
Units included
- Pascal (Pa) — the SI unit of pressure.
- Kilopascal (kPa) — 1 kPa = 1000 Pa.
- Bar — commonly used in meteorology and engineering (1 bar = 100000 Pa).
- Pounds per square inch (psi) — common in the United States and for tyre pressures.
How it works
Enter a numeric value, select the source unit and the unit you want to convert to, then press Convert. Internally conversions use Pascal (Pa) as the canonical unit to ensure accuracy; results are formatted to four decimal places.
Common use-cases
- Translating atmospheric pressure readings for weather data.
- Converting tyre pressure units (psi ↔ kPa) when servicing vehicles.
- Engineering and lab work requiring quick unit checks.
Tip: For display purposes the tool rounds results to a reasonable number of decimal places. If you need greater precision for scientific use, consider domain-specific tools that support enhanced unit metadata.