Hectopascals to standard atmospheres converter
Standard atmospheres (atm)
1 hectopascal = 0.0009869232667 standard atmospheres
How to convert hectopascals to standard atmospheres
atm = hPa × 0.000986923266716
Multiply the number of hectopascals by 0.000986923266716 to get standard atmospheres. Going the other way, divide by 0.000986923266716 (or multiply by 1013.25).
One hectopascal is exactly defined as 0.000986923266716 standard atmospheres (to 12 significant figures), and one standard atmosphere is 1013.25 hectopascals.
Worked examples
- Convert 5 hectopascals: 5 × 0.000986923266716 = 0.004934616334 0.004934616334 standard atmospheres.
- Convert 12.5 hectopascals: 12.5 × 0.000986923266716 = 0.01233654083 0.01233654083 standard atmospheres.
- Convert 250 hectopascals: 250 × 0.000986923266716 = 0.2467308167 0.2467308167 standard atmospheres.
Quick-reference table
| hPa | 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 |
| atm | hPa |
|---|---|
| 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 |
Related conversions
Frequently asked questions
How many standard atmospheres are in 1 hectopascal?
1 hectopascal equals 0.0009869232667 standard atmospheres.
What is the formula to convert hectopascals to standard atmospheres?
Use atm = hPa × 0.000986923266716. Multiply the number of hectopascals by 0.000986923266716 to get standard atmospheres. Going the other way, divide by 0.000986923266716 (or multiply by 1013.25).
What is 100 hectopascals in standard atmospheres?
100 hectopascals is 0.09869232667 standard atmospheres.