UnitChart

Convert psi to atm

pounds per square inch to standard atmospheres. Enter a value to convert, or use the psi to atm chart further down the page.

1 psi = 0.068046 atm

1 pound per square inch equals 0.068046 standard atmospheres. Going the other way, 1 standard atmosphere = 14.6959 pounds per square inch.

Check this before you rely on it. This converter is provided free and without warranty, and its results are not professional advice.

How to convert psi to atm

To convert pounds per square inch to standard atmospheres, multiply the pound per square inch value by 0.06804596391. You can also divide by 14.69594878 to get the same answer.

atm = psi × 0.06804596391

Worked example

Convert 15 psi to standard atmospheres:

15 psi = 1.02069 atm

psi to atm conversion chart

Use this psi to atm table for quick reference without typing anything.

psi to atm conversion table
pounds per square inch (psi)standard atmospheres (atm)
0.01 psi0.00068046 atm
0.1 psi0.0068046 atm
1 psi0.068046 atm
2 psi0.136092 atm
3 psi0.204138 atm
5 psi0.34023 atm
10 psi0.68046 atm
20 psi1.36092 atm
50 psi3.4023 atm
100 psi6.8046 atm
1,000 psi68.046 atm

What is a pound per square inch?

One psi is one pound-force per square inch, about 6,894.76 pascals. It is the standard pressure unit for tyres and hydraulics in the US.

What is a standard atmosphere?

The standard atmosphere is defined as exactly 101,325 pascals — the reference sea-level pressure.

Frequently asked questions

How many atm are in a pound per square inch?

1 psi equals 0.068046 atm. Going the other way, 1 atm is 14.6959 psi.

How do you convert psi to atm?

To convert pounds per square inch to standard atmospheres, multiply the pound per square inch value by 0.06804596391. You can also divide by 14.69594878 to get the same answer.

What is 10 psi in atm?

10 psi equals 0.68046 atm. The conversion chart on this page lists the other values people look up most often.

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