AtlasCalc📏 ConversionbeginnerOffline
Pressure Converter
Convert between Pa, kPa, bar, psi, atm, mmHg.
Inputs
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Result
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Enter values and press Calculate — the result appears here.
How it works
The formula behind this calculator.
1 atm = 101.325 kPa = 14.696 psi = 760 mmHg = 1.01325 bar
- value, from, to
- Source value and unit
Pressure units are common in engineering, medicine, and weather. Tire pressure is often shown in psi, kPa, or bar depending on country.
Example: Standard atmosphere = 101,325 Pa; 1 psi = 6.895 kPa
Ref: ISO 80000-4 (Quantities and units — Mechanics)
Tips
- 💡 1 atm = 101.325 kPa = 14.696 psi. 1 bar = 100 kPa.
- 💡 Tire pressure gauges often read in psi; engineers use kPa or bar.