Atmospheres to Bars
1 atmosphere = 1.01325 bars (bar)
Convert atmospheres to bars instantly. 1 atmosphere = 1.01325 bars. Free, accurate, with conversion table and formula.
Atmosphere (atm)
Bar (bar)
| Unit | 1 atm equals |
|---|---|
| Pascal (Pa) | 101,325 |
| Kilopascal (kPa) | 101.325 |
| Megapascal (MPa) | 0.101325 |
| Bar (bar) | 1.01325 |
| PSI (psi) | 14.6959 |
| Atmosphere (atm) | 1 |
| Torr (Torr) | 760.002 |
| mmHg (mmHg) | 760.002 |
How to convert atmospheres to bars
- 1Take your value in atmospheres (atm).
- 2Multiply by 1.01325.
- 3The result is your value in bars (bar).
Atmospheres to Bars conversion table
| Atmospheres (atm) | Bars (bar) |
|---|---|
| 1 | 1.01325 |
| 2 | 2.0265 |
| 5 | 5.06625 |
| 10 | 10.1325 |
| 25 | 25.3313 |
| 50 | 50.6625 |
| 100 | 101.325 |
| 250 | 253.313 |
| 500 | 506.625 |
| 1,000 | 1,013.25 |
Frequently asked
How many bars are in a atmosphere?
1 atmosphere equals 1.01325 bars (bar).
How do I convert atmospheres to bars?
Multiply the number of atmospheres by 1.01325 to get bars.
What is 10 atmospheres in bars?
10 atm equals 10.13 bar.
What is 100 atmospheres in bars?
100 atm equals 101.3 bar.
How do I convert bars back to atmospheres?
Multiply bars by 0.986923 (the reciprocal) or use the swap button above.
Where you'll actually use this
Pressure measures force per unit area. The SI unit is the pascal (Pa), but everyday use spans bar, psi, atm, mmHg, and torr.
- Tire pressure
Most cars list psi in the US, kPa or bar in Europe. 32 psi ≈ 2.2 bar ≈ 220 kPa.
- Weather
Atmospheric pressure is reported in hPa (hectopascals) or millibars (1 hPa = 1 mbar). 'Inches of mercury' (inHg) is still used in US aviation.
- Diving & medical
Blood pressure is measured in mmHg; scuba tank pressure in bar or psi.
Common mistakes to avoid
- Gauge vs absolute
Tire pressure is gauge pressure (relative to atmospheric). Absolute pressure adds ~1 atm (14.7 psi) on top.
Did you know?
Standard atmospheric pressure (101,325 Pa) is the force of a column of air reaching the top of the atmosphere.
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