kPa to Bar Converter

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Convert kilopascals to bar using the exact relation 100 kPa = 1 bar. Anchors: 200 kPa = 2 bar (typical car tire), 300 kPa = 3 bar, 1,000 kPa = 10 bar, 25,000 kPa = 250 bar (typical hydraulic system). Useful when metric instrument readings need to feed into European spec sheets that use bar. Browser-local conversion.

Kilopascal (kPa)
Bar

Kilopascal (kPa) → Bar

Quick reference table

Kilopascal (kPa)Bar
1 kPa0.01 bar
2 kPa0.02 bar
5 kPa0.05 bar
10 kPa0.1 bar
25 kPa0.25 bar
50 kPa0.5 bar
100 kPa1 bar

Glossary

Kilopascal (kPa)

A kilopascal equals 1,000 pascals. It is the everyday metric pressure unit for tire pressure outside the US (32 psi ≈ 220 kPa), atmospheric pressure (~101 kPa at sea level), HVAC duct pressure and blood-pressure readings reported in metric form (120/80 mmHg ≈ 16.0/10.7 kPa). The standard atmosphere equals 101.325 kPa exactly.

Bar

The bar is a non-SI metric pressure unit equal to exactly 100,000 Pa, very close to atmospheric pressure at sea level (1 atm = 1.01325 bar). Widely used in European engineering, automotive specs (turbo boost, fuel-rail pressure), tire pressure (2–3 bar typical), scuba diving and weather charts. Not part of SI but accepted for use with SI.

Metric / SI pressure

In the metric system, pressure is reported in pascals (SI base) or its multiples — kilopascal (kPa, 10³ Pa), megapascal (MPa, 10⁶ Pa) — and the related non-SI unit bar (10⁵ Pa). The millibar/hectopascal (mbar = hPa = 100 Pa) is used in meteorology. All metric units relate by exact powers of ten, so conversions between them are simple shifts of decimal point.

Imperial / US pressure

US engineering and automotive primarily report pressure in pounds per square inch (psi). 1 psi ≈ 6,894.76 Pa, defined as one pound-force per square inch. Standard atmospheric pressure is 14.696 psi. The closely related "psi-gauge" (psi-g) measures pressure above atmospheric, while "psi-absolute" (psi-a) measures total pressure including atmospheric.

Related tools

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