Atmospheres to Pounds per square inch Converter atm → psi

1 atmosphere (atm) = 14.69594878 pounds per square inch (psi). Type a value below, the conversion happens instantly, entirely on your device.

From

1 atm = 14.69594878 psi

Precision

2 atmospheres = 29.391898 pounds per square inch

2 × 14.6959 = 29.391898

1 atm equals 14.6959 psi, so multiplying by 14.6959 converts the value. The result describes the exact same quantity, only the measuring stick changes.

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How to convert atmospheres to pounds per square inch

pounds per square inch = atmospheres × 14.69594878, multiply the atmosphere value by 14.6959.

Example: 2 atm = 29.3919 psi.

To convert the other way: atmospheres = pounds per square inch ÷ 14.69594878

One standard atmosphere is 14.696 psi, so 2 atm is 29.39 psi. Divers meet this constantly: pressure increases by roughly one atmosphere per 10 m of seawater, so at 10 m depth total pressure is already ~2 atm.

Atmospheres to Pounds per square inch conversion table

Atmospheres (atm)	Pounds per square inch (psi)
0.1	1.4695949
0.25	3.6739872
0.5	7.3479744
1	14.695949
2	29.391898
3	44.087846
4	58.783795
5	73.479744
6	88.175693
7	102.87164
8	117.56759
9	132.26354
10	146.95949
15	220.43923
20	293.91898
25	367.39872
30	440.87846
40	587.83795
50	734.79744
75	1102.1962
100	1469.5949
250	3673.9872
500	7347.9744
1000	14,695.949

About the units

What is a atmosphere?

A standard atmosphere (atm) is exactly 101,325 Pa, the average sea-level air pressure. Diving depth pressure is often expressed in atmospheres.

What is a pound per square inch?

PSI (pound-force per square inch) is the US customary pressure unit, about 6,894.76 Pa. US tire pressures (typically 30-35 psi) and plumbing systems use psi.

Frequently asked questions

How many pounds per square inch are in 1 atmosphere?

1 atmosphere (atm) = 14.69594878 pounds per square inch (psi).

What is the formula to convert atmospheres to pounds per square inch?

pounds per square inch = atmospheres × 14.69594878, multiply the atmosphere value by 14.6959.

How do I convert atm to psi without a calculator?

Multiply by 14.7 for a close estimate. Exact factor: 1 atm = 14.69594878 psi.

Is this atm-to-psi converter accurate and private?

Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser, your input is never sent to a server, and the page keeps working offline.