Pound per square inch to Psi Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert pounds per square inch [lb/in²] to psi or psi to pounds per square inch [lb/in²]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 pound per square inch [lb/in²] = 1 psi1 psi = 1 pound per square inch [lb/in²]

Convert pounds per square inch to psi

pound per square inch [lb/in²] and psi are two units that have the same value, even though they have different names. For this reason, no conversion is necessary. 1 pound per square inch [lb/in²] therefore corresponds to 1 psi.

  • Psi = pounds per square inch [lb/in²]

Convert psi to pounds per square inch

Although psi and pound per square inch [lb/in²] have different names, they have the same value. This means that 1 psi corresponds exactly to 1 pound per square inch [lb/in²]. It is therefore not necessary to convert between the two units.

  • Pounds per square inch [lb/in²] = psi

Converter

Decimal places

How it's calculated

Factor: 
1
Psi = Pounds per square inch

To all available units

Pounds per square inch

Standard atmospheres

Psi

Millimeters of mercury

Psi

Newtons per square millimeter

Psi

Standard atmospheres

Technical atmospheres

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