Standard atmospheres to millibars converter
Millibars (mbar)
1 standard atmosphere = 1,013.25 millibars
How to convert standard atmospheres to millibars
mbar = atm × 1013.25
Multiply the number of standard atmospheres by 1013.25 to get millibars. Going the other way, divide by 1013.25 (or multiply by 0.000986923266716).
One standard atmosphere is exactly defined as 1013.25 millibars (to 12 significant figures), and one millibar is 0.000986923266716 standard atmospheres.
Worked examples
- Convert 5 standard atmospheres: 5 × 1013.25 = 5,066.25 5,066.25 millibars.
- Convert 12.5 standard atmospheres: 12.5 × 1013.25 = 12,665.625 12,665.625 millibars.
- Convert 250 standard atmospheres: 250 × 1013.25 = 253,312.5 253,312.5 millibars.
Quick-reference table
| atm | mbar |
|---|---|
| 1 | 1,013.25 |
| 2 | 2,026.5 |
| 3 | 3,039.75 |
| 5 | 5,066.25 |
| 10 | 10,132.5 |
| 15 | 15,198.75 |
| 20 | 20,265 |
| 25 | 25,331.25 |
| 50 | 50,662.5 |
| 75 | 75,993.75 |
| 100 | 101,325 |
| 1,000 | 1,013,250 |
| mbar | atm |
|---|---|
| 1 | 0.0009869232667 |
| 2 | 0.001973846533 |
| 3 | 0.0029607698 |
| 5 | 0.004934616334 |
| 10 | 0.009869232667 |
| 15 | 0.014803849 |
| 20 | 0.01973846533 |
| 25 | 0.02467308167 |
| 50 | 0.04934616334 |
| 75 | 0.074019245 |
| 100 | 0.09869232667 |
| 1,000 | 0.9869232667 |
Related conversions
- ⇄ Millibars to standard atmospheres
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- Standard atmospheres to hectopascals
- Standard atmospheres to kilopascals
- Standard atmospheres to bar
- Standard atmospheres to pounds per square inch
- Standard atmospheres to millimetres of mercury
- Standard atmospheres to torr
- Standard atmospheres to inches of mercury
Frequently asked questions
How many millibars are in 1 standard atmosphere?
1 standard atmosphere equals 1,013.25 millibars.
What is the formula to convert standard atmospheres to millibars?
Use mbar = atm × 1013.25. Multiply the number of standard atmospheres by 1013.25 to get millibars. Going the other way, divide by 1013.25 (or multiply by 0.000986923266716).
What is 100 standard atmospheres in millibars?
100 standard atmospheres is 101,325 millibars.