1 standard atmosphere (atm) = 101,325 pascals (Pa). To convert, multiply by 101,325: Pa = atm × 101,325. For example, 5 atm = 506,625 Pa.
Pa = atm × 101,325
Standard atmospheres to pascals table
| Standard atmospheres (atm) | Pascals (Pa) |
|---|---|
| 1 | 101,325 |
| 2 | 202,650 |
| 3 | 303,975 |
| 4 | 405,300 |
| 5 | 506,625 |
| 10 | 1,013,250 |
| 20 | 2,026,500 |
| 25 | 2,533,125 |
| 50 | 5,066,250 |
| 100 | 10,132,500 |
| 250 | 25,331,250 |
| 500 | 50,662,500 |
| 1,000 | 101,325,000 |
The two units
Standard atmosphere (atm). Exactly 101,325 pascals: average air pressure at sea level.
Pascal (Pa). The SI unit of pressure: one newton per square meter.
Because both units are defined in terms of the same base unit, the factor 101,325 is exact, not a rounded measurement.
Convert standard atmospheres to other units
- Standard atmospheres to kilopascals — 1 atm = 101.325 kPa
- Standard atmospheres to bars — 1 atm = 1.01325 bar
- Standard atmospheres to pounds per square inch — 1 atm = 14.69594878 psi
- Standard atmospheres to millimeters of mercury — 1 atm = 759.9998917 mmHg
- Standard atmospheres to inches of mercury — 1 atm = 29.92125558 inHg
Convert other units to pascals
Questions people ask
- How many pascals are in a standard atmosphere?
- 101,325, exactly.
- How do you convert standard atmospheres to pascals?
- Pa = atm × 101,325. It is the same as dividing by 0.0000098692.
- How do you convert pascals back to standard atmospheres?
- atm = Pa ÷ 101,325. See pascals to standard atmospheres.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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