Atmospheres to Bar

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atm
bar
1 atm = — bar

Quick reference

Atmospheres (atm)Bar (bar)

Formula

Bar = atmospheres × 1.01325

Multiply the atmospheres value by 1.01325 to get bar. To reverse — divide bar by 1.01325 to get atmospheres.

About this conversion

The atmosphere (atm) is a reference pressure unit equal to the average atmospheric pressure at sea level: 101,325 pascals. Learn more →

The bar is a metric unit of pressure equal to 100,000 pascals, approximately equal to atmospheric pressure at sea level. Learn more →

Source: NIST International Reference