Pressure Unit Converter
Unit ConversionA general-purpose pressure converter covering every common unit at once — pascals, kilopascals, megapascals, atmospheres, bar, psi, and mmHg. Type any value and every field updates instantly.
Pressure
Metric
Other units
1 Bar = 0.986923 Atmospheres ⟷ 1 Atmospheres = 1.01325 Bar
1 Bar = 100,000 Pascals ⟷ 1 Pascals = 0.00001 Bar
1 Bar = 100 Kilopascals ⟷ 1 Kilopascals = 0.01 Bar
1 Bar = 0.1 Megapascals ⟷ 1 Megapascals = 10 Bar
1 Bar = 14.503774 PSI ⟷ 1 PSI = 0.068948 Bar
1 Bar = 750.061576 mmHg ⟷ 1 mmHg = 0.001333 Bar
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Odeh Ahwal0people find this calculator helpful
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Frequently Asked Questions
What is the best all-purpose pressure converter to use?
This tool covers every common pressure unit at once — pascals, kilopascals, megapascals, atmospheres, bar, psi, and mmHg — so it works for scientific, industrial, and everyday conversions in one place.
What is the difference between bar and atmosphere?
1 bar equals 100,000 pascals exactly, while 1 atmosphere equals 101,325 pascals exactly — they are close but not identical, a common source of confusion.
Which pressure unit should I use for tire pressure?
Tire pressure is most commonly expressed in psi in the United States and bar or kPa in most other countries — this tool converts between all of them instantly.