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Standard atmospheres to Pounds per square inch Converter

1 atm = 14.6959 psi

1 standard atmosphere equals 14.6959 pounds per square inch. To convert standard atmospheres to pounds per square inch, multiply the standard atmosphere value by 14.6959. For quick reference: 1 atm = 14.6959 psi, 5 atm = 73.4797 psi, 10 atm = 146.959 psi, 100 atm = 1469.59 psi.

14.6959
FormulaPounds per square inch = Standard atmospheres × 14.6959
Quick

How to convert standard atmospheres to pounds per square inch

  1. Take your value

    Start with your value in standard atmospheres.

  2. Multiply by 14.6959

    Multiply the standard atmosphere value by 14.6959. This is the exact conversion factor from standard atmospheres to pounds per square inch.

  3. Read the result

    The product is your value in pounds per square inch. For example, 5 atm × 14.6959 = 73.4797 psi.

Conversion formula

The exact factor from standard atmospheres to pounds per square inch is 14.6959.

Pounds per square inch = Standard atmospheres × 14.6959

Standard atmospheres to Pounds per square inch conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from standard atmospheres to pounds per square inch
Standard atmospheres (atm)Pounds per square inch (psi)
0.001 atm0.014696 psi
0.01 atm0.14696 psi
0.1 atm1.4696 psi
0.5 atm7.348 psi
1 atm14.696 psi
1.5 atm22.044 psi
2 atm29.392 psi
2.5 atm36.74 psi
3 atm44.088 psi
4 atm58.784 psi
5 atm73.48 psi
6 atm88.176 psi
7 atm102.87 psi
8 atm117.57 psi
9 atm132.26 psi
10 atm146.96 psi
14 atm205.74 psi
15 atm220.44 psi
20 atm293.92 psi
25 atm367.4 psi
30 atm440.88 psi
32 atm470.27 psi
35 atm514.36 psi
40 atm587.84 psi
50 atm734.8 psi
60 atm881.76 psi
75 atm1102.2 psi
80 atm1175.7 psi
100 atm1469.6 psi
101.325 atm1489.1 psi
150 atm2204.4 psi
200 atm2939.2 psi
250 atm3674 psi
300 atm4408.8 psi
400 atm5878.4 psi
500 atm7348 psi
760 atm11169 psi
1000 atm14696 psi
1013.25 atm14891 psi
2000 atm29392 psi
5000 atm73480 psi
10000 atm146959 psi
14.7 atm216.03 psi
50000 atm734797 psi
100000 atm1469595 psi
101325 atm1489067 psi
200000 atm2939190 psi
500000 atm7347974 psi
1000000 atm14695949 psi
10000000 atm146959488 psi

Real-world reference

Earth's mean sea-level pressure is approximately 1 atm. Pressure doubles roughly every 10 m of seawater. In pounds per square inch, that gives you: 1 atm = 14.6959 psi, 10 atm = 146.959 psi, 100 atm = 1469.59 psi.

Frequently asked questions

How many pounds per square inch are in 1 standard atmosphere?
1 standard atmosphere equals 14.6959 pounds per square inch.
How do I convert standard atmospheres to pounds per square inch?
Multiply the standard atmosphere value by 14.6959. So x atm × 14.6959 = the equivalent in psi.
What is 5 standard atmospheres in pounds per square inch?
5 standard atmospheres equals 73.4797 pounds per square inch.
What is 10 standard atmospheres in pounds per square inch?
10 standard atmospheres equals 146.959 pounds per square inch.
What is 100 standard atmospheres in pounds per square inch?
100 standard atmospheres equals 1469.59 pounds per square inch.
How do I convert back from pounds per square inch to standard atmospheres?
Multiply the pound per square inch value by 0.068046. For example, 1 psi = 0.068046 atm.
Is the standard atmosphere bigger than the pound per square inch?
Yes. 1 standard atmosphere is larger than 1 pound per square inch — specifically 14.6959 times larger.
Are these conversion factors exact?
Yes. The factor of 14.6959 is derived directly from the SI definitions of standard atmosphere and pound per square inch.

About the standard atmosphere and the pound per square inch

The standard atmosphere

The standard atmosphere (atm) is defined as exactly 101,325 Pa. It is the conventional reference for chemistry (gas-law calculations), aviation altimetry, and historic engineering. Despite the name, it is not the actual atmospheric pressure at any single place — that varies daily.

The pound per square inch

The pound per square inch (psi) is the customary US pressure unit, derived from the avoirdupois pound-force on a square inch (≈ 6,894.76 Pa exactly). It is the standard unit on US car tire-pressure stickers, scuba gauges in the US, and most plumbing specifications.

Related converters

Pounds per square inch to Standard atmospheres
psi → atm
Pascals to Kilopascals
Pa → kPa
Pascals to Bars
Pa → bar
Pascals to Standard atmospheres
Pa → atm
Pascals to Pounds per square inch
Pa → psi
Pascals to Millimeters of mercury
Pa → mmHg

Sources