Marks Calc

atmospheres to psi

Convert atmosphere to pound per square inch — instant, free, with the formula shown.

1 atm=14.695949 psi

How to convert atmosphere to pound per square inch

To convert atmosphere to pound per square inch, multiply by 14.69594878:

psi = atm × 14.69594878

For example, 10 atm × 14.695949 = 146.959488 psi.

atm to psi conversion table

atmospheres (atm)psi (psi)
1 atm14.695949 psi
2 atm29.391898 psi
5 atm73.479744 psi
10 atm146.959488 psi
25 atm367.398719 psi
50 atm734.797439 psi
100 atm1469.594878 psi
250 atm3673.987194 psi
500 atm7347.974388 psi
1000 atm14695.948776 psi
Reverse: Pound per Square Inch to Atmosphere

Other atmosphere conversions

Convert to pound per square inch from another unit

atm to psi — frequently asked

How many psi are in 1 atmosphere?

1 atmosphere = 14.695949 psi (atm × 14.695949 = psi).

What is the formula to convert atmosphere to pound per square inch?

Multiply your atmosphere value by 14.69594878 to get pound per square inch.

How do I convert 10 atmospheres to psi?

10 atm = 146.959488 psi. For 100 atm the answer is 1469.594878 psi. Use the calculator on this page for any other value.

When to convert atmosphere to pound per square inch

1Tire pressure (psi ↔ bar ↔ kPa)
2Weather forecasting (mbar, hPa)
3Blood pressure (mmHg / Torr)
4Industrial engineering (MPa, bar)

Pressure conversion — common questions

What's the difference between bar and psi?

1 bar = 100,000 Pa ≈ 14.504 psi. Bar is metric/SI-friendly; psi is US imperial. Tire pressure in cars is commonly 30–35 psi or ≈ 2.1–2.4 bar.

Is 1 atmosphere the same as 1 bar?

Very close but not identical. 1 atm = 1.01325 bar = 101,325 Pa. 1 bar = 100,000 Pa.

Why is blood pressure in mmHg?

Historically measured with mercury manometers — the pressure that supports a column of mercury that many millimetres tall. 120 mmHg systolic ≈ 16 kPa.

See all pressure converters