Pressure
atmtopsi
Convert standard atmospheres (atm) to pounds-force per square inch (psi).
Factor1 atm = 14.69595 psi
Converter
atm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
psi
Rendered to 6 significant figures.
Formula
Formula
psi = atm × 14.69595
Multiply any value in standard atmospheres by 14.69595 to obtain the value in pounds-force per square inch.
Worked example
Convert 1 atm to psi.
- 01Start with 1 atm.
- 02Multiply by the conversion factor: 1 × 14.69595 = 14.6959 psi.
Result1 atm = 14.6959 psi
Conversion table
| atm | psi |
|---|---|
| 1 | 14.696 |
| 2 | 29.392 |
| 5 | 73.48 |
| 10 | 146.96 |
| 20 | 293.92 |
| 50 | 734.8 |
| 100 | 1469.6 |
| 200 | 2939.2 |
| 500 | 7348 |
| 1000 | 14696 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from atm to psi?
1 atm equals 14.69595 psi. To convert, multiply the value in standard atmospheres by 14.69595.
How do I convert 1 atm to psi?
1 atm = 14.6959 psi. For any value, multiply by 14.69595.
How do I convert psi back to atm?
Divide by the same factor — or equivalently, multiply by 0.06804596. So 1 psi = 0.068046 atm.
When would I need to convert standard atmosphere to pound-force per square inch?
Pressure conversions between atm and psi are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).