Pound per square inch to Standard atmosphere Converter

Convert Pound per square inch to Standard atmosphere

1 pound per square inch (psi) equals 0.06804596391 standard atmosphere (atm). Enter any value below to convert from psi to atm.

Enter a value and choose units. Results update instantly.

Decimals

Amount From unit

Result To unit

1 psi = 0.0680459639 atm

All Pressure units

From 1 psi

Unit	Value
Pascal Pa	6,894.757293168
Kilopascal kPa	6.8947572932
Megapascal MPa	0.0068947573
Bar bar	0.0689475729
Millibar mbar	68.9475729317
Standard atmosphere atm	0.0680459639
Pound per square inch psi	1
Torr Torr	51.7149325715
Millimeter of mercury mmHg	51.7149252039
Inch of mercury inHg	2.0360204611

Recent conversions

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Formula

psi to atm conversion formula

Use this relationship for a direct conversion:

atm = psi x 0.06804596391

Worked example

2 psi = 0.1360919278 atm.

Conventional mercury-column units are not measurements adjusted for local temperature or gravity.

Quick reference

Pound per square inch to Standard atmosphere table

Pound per square inch (psi)	Standard atmosphere (atm)
0.01	0.0006804596
0.1	0.0068045964
1	0.0680459639
2	0.1360919278
5	0.3402298195
10	0.6804596391
25	1.7011490977
50	3.4022981955
100	6.804596391
1,000	68.0459639099

From unit

About the pound per square inch

One pound-force per square inch.

Symbol: psi

To unit

About the standard atmosphere

Exactly 101,325 pascals.

Symbol: atm

Source

Conversion standard

Definitions are checked against NIST SP 811: Pressure units. Calculations use full internal precision before display rounding.

View the complete pressure converter

Questions

psi to atm FAQ

How do you convert pound per square inch to standard atmosphere?

Use the formula atm = psi x 0.06804596391. 1 pound per square inch (psi) equals 0.06804596391 standard atmosphere (atm).

Is the psi to atm conversion exact?