Convert bar (bar) to atmosphere (atm).
Atmosphere to Bar Converter (atm to bar)
Convert atmosphere (atm) to bar (bar).Unit Converter · Pressure
Quick answer
1 atmosphere (atm) is equal to 1.01325 bars (bar). 1 bar is approximately equal to 0.9869233 atmospheres (atm).
To convert atm to bar, multiply the value in atmospheres by 1.01325. For example, 10 atm = 10.1325 bar, and 100 atm = 101.325 bar.
More in Pressure
All Pressure converters- PressureOpen
Convert atmosphere (atm) to pascal (Pa).
PressureOpenConvert atmosphere (atm) to psi (psi).
PressureOpenConvert atmosphere (atm) to kilopascal (kPa).
PressureOpenConvert atmosphere (atm) to megapascal (MPa).
PressureOpenConvert atmosphere (atm) to millibar (mbar).
PressureOpenConvert atmosphere (atm) to torr (Torr).
PressureOpenConvert pascal (Pa) to bar (bar).
PressureOpenConvert psi (psi) to bar (bar).
PressureOpen
How to convert atmospheres to bars
How many bars are in an atmosphere? 1 atmosphere is 1.01325 bars. This free atm to bar converter and atmosphere to bar calculator gives the answer instantly for any value.
To convert atmosphere (atm) to bar (bar), multiply the value in atmospheres by 1.01325.
bar = atm × 1.01325
- 1
Take the value in atmospheres
For example, 25 atm.
- 2
Multiply by 1.01325
25 × 1.01325.
- 3
Read the answer in bars
25 atm = 25.33125 bar.
Atmosphere to Bar conversion table
Common values from 1 to 1,000 atmospheres converted to bars.
| Atmosphere (atm) | Bar (bar) |
|---|---|
| 1 atm | 1.01325 bar |
| 2 atm | 2.0265 bar |
| 3 atm | 3.03975 bar |
| 4 atm | 4.053 bar |
| 5 atm | 5.06625 bar |
| 6 atm | 6.0795 bar |
| 7 atm | 7.09275 bar |
| 8 atm | 8.106 bar |
| 9 atm | 9.11925 bar |
| 10 atm | 10.1325 bar |
| 15 atm | 15.19875 bar |
| 20 atm | 20.265 bar |
| 25 atm | 25.33125 bar |
| Atmosphere (atm) | Bar (bar) |
|---|---|
| 30 atm | 30.3975 bar |
| 40 atm | 40.53 bar |
| 50 atm | 50.6625 bar |
| 60 atm | 60.795 bar |
| 70 atm | 70.9275 bar |
| 75 atm | 75.99375 bar |
| 80 atm | 81.06 bar |
| 90 atm | 91.1925 bar |
| 100 atm | 101.325 bar |
| 250 atm | 253.3125 bar |
| 500 atm | 506.625 bar |
| 1,000 atm | 1,013.25 bar |
About atmospheres and bars
Atmosphere (atm)
A standard atmosphere (atm) is exactly 101,325 pascals, the average air pressure at sea level.
Bar (bar)
A bar is exactly 100,000 pascals, close to normal atmospheric pressure. It is used for tyre, gas and industrial pressures.
atm to bar: common questions
- How many bars are in 1 atmosphere?
- 1 atmosphere (atm) is equal to 1.01325 bars (bar). In short: 1 atm = 1.01325 bar.
- How do I convert atmospheres to bars?
- To convert atm to bar, multiply the value in atmospheres by 1.01325. For example, 5 atm = 5.06625 bar.
- How do I convert bars to atmospheres?
- To convert bar to atm, divide the value in bars by 1.01325. Or open the Bar to Atmosphere converter, which does it for you.
- What is 10 atm in bar, and what is 100 atm?
- 10 atm = 10.1325 bar, and 100 atm = 101.325 bar. The table above lists more values from 1 to 1,000.
- Is this atm to bar converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
Customize this calculator
Pick a look, copy the code, and this Atmosphere to Bar calculator — with its inputs and results — runs on your own website.
Theme color
Match your brand's colors
Corner style
Sharp, soft or fully rounded
Widget width
Compact, standard or full width
Live preview
Full widthThe same inputs, result and chart as the calculator above, styled with your choices.