EVERYDAY MATH, MADE SIMPLE.

Bar to PSI●

Bar in. Pounds per square inch out. Read European pressure on US gauges.

Pressure

Converts units only: gauge stays gauge and absolute stays absolute. No atmospheric offset is applied.

Definitions: NIST pressure conversions ↗

VALUE

Use a decimal point, for example 2.54. Scientific notation works too: 1e3.

FROM

RESULTPrecision

2.5 bar =

36.2594344326 psi

1 bar = 14.503773773 psi

Try a value

Pick an example to start

The formula

pounds-force per square inch = bars × 14.503773773

Multiply the number of bars by 14.503773773 to get pounds-force per square inch. To go the other way, divide by the same number.

A worked example

For 2.5 bar, multiply 2.5 by 14.503773773. The result is approximately 36.259434 psi.

2.5 × 14.503773773 ≈ 36.259434 psi

Quick reference

Reference values are rounded to 6 decimal places. Use the converter above for other values or precision.

Bar to PSI
Bars (bar)	Pounds-force per square inch (psi)
0.5	7.251887
1	14.503774
1.5	21.755661
2	29.007548
2.2	31.908302
2.5	36.259434
3	43.511321
6	87.022643
10	145.037738

All equivalent units10 supported units

The same value, in every supported unit.

Pascals250,000 Pa

Hectopascals2,500 hPa

Kilopascals250 kPa

Megapascals0.25 MPa

Gigapascals0.00025 GPa

Bars2.5 bar

Millibars2,500 mbar

Pounds-force per square inch36.2594344326 psi

Standard atmospheres2.46730816679 atm

Torr1,875.15420676 Torr

Pressure conversions

GOOD TO KNOW

For European tyre and gauge values.

Use this conversion when a European spec in bar must be set on a gauge that shows psi. Multiply bar by 14.5038. Atmospheric pressure is about 1.013 bar.

Calculation details & precision

Pressure conversions use pascals as the base unit. One bar is exactly 100,000 Pa; one standard atmosphere is exactly 101,325 Pa; one Torr is 1/760 of a standard atmosphere. PSI uses the international pound-force and inch: 1 psi is approximately 6,894.75729317 Pa. Converting units preserves the pressure reference.

Automatic displays up to 12 significant digits. Choose 2, 4 or 6 decimal places in Precision for a shorter result. Displayed results are rounded; very large or small values use scientific notation.

Common questions

How many psi is 1 bar?

One bar is approximately 14.503774 psi.

How many pounds-force per square inch are in 2.5 bars?

2.5 bar is approximately 36.259434 psi. The converter can show more significant digits or round to a chosen number of decimal places.