Atmospheres to PSI Converter
Convert standard atmospheres (atm) to pounds per square inch (psi) as you type — 1 atm = 14.695949 psi. Switch units, change the precision or copy the result.
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How to use this tool
Steps for using the Unit Converter.
- Enter a value in From — standard atmospheres are already selected.
- The result in pounds per square inch appears instantly. Change either unit to convert to anything else in pressure.
- Use the swap button for the reverse conversion, and set the decimal places you need.
- Turn on Show formula to see the calculation, then copy or share the result.
Example
1 atm to psi
1 atmpsi = 1 × 14.69594878 = 14.695949 psiCommon use cases
- Tyre pressures in bar, psi and kPa.
- Weather and altitude pressures in hPa (mbar) and atm.
- Hydraulics, pneumatics and diving.
Atmospheres to PSI conversion table
| Standard atmosphere (atm) | Pound per square inch (psi) |
|---|---|
| 0.1 atm | 1.469595 psi |
| 0.5 atm | 7.347974 psi |
| 1 atm | 14.695949 psi |
| 2 atm | 29.391898 psi |
| 3 atm | 44.087846 psi |
| 4 atm | 58.783795 psi |
| 5 atm | 73.479744 psi |
| 10 atm | 146.959488 psi |
| 15 atm | 220.439232 psi |
| Standard atmosphere (atm) | Pound per square inch (psi) |
|---|---|
| 20 atm | 293.918976 psi |
| 25 atm | 367.398719 psi |
| 50 atm | 734.797439 psi |
| 75 atm | 1,102.196158 psi |
| 100 atm | 1,469.594878 psi |
| 250 atm | 3,673.987194 psi |
| 500 atm | 7,347.974388 psi |
| 1,000 atm | 14,695.948776 psi |
Values rounded to 6 decimal places.
Related conversions
The units
- Standard atmosphere (atm)
- Exactly 101,325 Pa.
- Pound per square inch (psi)
- 1 lbf/in² ≈ 6,894.757 Pa. Part of the US customary system.
How to convert standard atmospheres to pounds per square inch
Diving, gas laws and vacuum work: one standard atmosphere is 101,325 Pa, about 14.696 psi.
To convert standard atmospheres to pounds per square inch, use psi = atm × 14.69594878. One standard atmosphere equals 14.695949 pounds per square inch, and one pound per square inch equals 0.068046 standard atmospheres.
Standard atmosphere (atm): Exactly 101,325 Pa. Pound per square inch (psi): 1 lbf/in² ≈ 6,894.757 Pa.
All pressure units are on the pressure converter.
Limitations
- Results are rounded to the decimal places you choose; the calculation itself keeps full precision.
Frequently asked questions
How many pounds per square inch are in a standard atmosphere?
1 atm = 14.695949 psi. Multiply standard atmospheres by 14.69594878 (or use psi = atm × 14.69594878).
How do I convert standard atmospheres to pounds per square inch?
Use psi = atm × 14.69594878. For example, 1 atm = 14.6959 psi and 10 atm = 146.9595 psi.
How many psi are in a bar?
1 bar = 14.5038 psi.
Is mmHg the same as torr?
Almost: 1 Torr = 133.3224 Pa and 1 mmHg = 133.3224 Pa differ only in the seventh significant digit. For everyday use they're interchangeable.