Psi to Standard atmosphere Converter (and vice versa)

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

This converter allows you to convert psi to standard atmospheres [atm] or standard atmospheres [atm] to psi. 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 psi ≈ 0.068 standard atmospheres [atm]1 standard atmosphere [atm] ≈ 14.6959 psi

Convert psi to standard atmospheres

There are two simple ways to convert psi to standard atmospheres [atm]. In the first calculation method, the value in psi is divided by the rounded conversion factor of 14.6959. The second method multiplies the value in psi by the rounded conversion factor of 0.068.

  • Standard atmospheres [atm] ≈ psi ÷ 14.6959
  • Standard atmospheres [atm] ≈ psi * 0.068

However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of psi to standard atmospheres [atm] can be achieved using the following calculation method.

  • Standard atmospheres [atm] = psi ÷ 653,708.37 * 4,535.9237 * 9.80665

Convert standard atmospheres to psi

Converting standard atmospheres [atm] to psi is easy and can be done in two ways. The first method involves multiplication, in which the value in standard atmospheres [atm] is multiplied by the rounded conversion factor of 14.6959. The second variant is a division. Here, the value in standard atmospheres [atm] is divided by the rounded conversion factor of 0.068.

  • Psi ≈ standard atmospheres [atm] * 14.6959
  • Psi ≈ standard atmospheres [atm] ÷ 0.068

However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of standard atmospheres [atm] to psi can be achieved using the following calculation method.

  • Psi = standard atmospheres [atm] * 653,708.37 ÷ 4,535.9237 ÷ 9.80665

Converter

Decimal places

How it's calculated

Factor: 
≈ 14.696
Standard atmospheres = Psi ÷ 653,708.37 * 4,535.9237 * 9.80665
Psi = Standard atmospheres * 653,708.37 ÷ 4,535.9237 ÷ 9.80665

To all available units

Technical atmospheres

Bar

Technical atmospheres

Decapascals

Technical atmospheres

Gigapascals

Technical atmospheres

Hectopascals

Technical atmospheres

Inches of mercury