Marks Calc

psi to bars

Convert pound per square inch to bar — instant, free, with the formula shown.

1 psi=0.068948 bar

How to convert pound per square inch to bar

To convert pound per square inch to bar, multiply by 0.06894757:

bar = psi × 0.06894757

For example, 10 psi × 0.068948 = 0.689476 bar.

psi to bar conversion table

psi (psi)bars (bar)
1 psi0.068948 bar
2 psi0.137895 bar
5 psi0.344738 bar
10 psi0.689476 bar
25 psi1.723689 bar
50 psi3.447379 bar
100 psi6.894757 bar
250 psi17.236893 bar
500 psi34.473786 bar
1000 psi68.947573 bar
Reverse: Bar to Pound per Square Inch

Other pound per square inch conversions

Convert to bar from another unit

psi to bar — frequently asked

How many bars are in 1 pound per square inch?

1 pound per square inch = 0.068948 bars (psi × 0.068948 = bar).

What is the formula to convert pound per square inch to bar?

Multiply your pound per square inch value by 0.06894757 to get bar.

How do I convert 10 psi to bars?

10 psi = 0.689476 bar. For 100 psi the answer is 6.894757 bar. Use the calculator on this page for any other value.

When to convert pound per square inch to bar

1Tire pressure (psi ↔ bar ↔ kPa)
2Weather forecasting (mbar, hPa)
3Blood pressure (mmHg / Torr)
4Industrial engineering (MPa, bar)

Pressure conversion — common questions

What's the difference between bar and psi?

1 bar = 100,000 Pa ≈ 14.504 psi. Bar is metric/SI-friendly; psi is US imperial. Tire pressure in cars is commonly 30–35 psi or ≈ 2.1–2.4 bar.

Is 1 atmosphere the same as 1 bar?

Very close but not identical. 1 atm = 1.01325 bar = 101,325 Pa. 1 bar = 100,000 Pa.

Why is blood pressure in mmHg?

Historically measured with mercury manometers — the pressure that supports a column of mercury that many millimetres tall. 120 mmHg systolic ≈ 16 kPa.

See all pressure converters