How to convert
hPa = atm × 1,013.25
Reverse: atm = hPa × 0.0009869233
hPa = atm × 1,013.25
Reverse: atm = hPa × 0.0009869233
Converting atm to hPa
atm and hPa are units of pressure. One atm equals 1,013.25 hPa. Just type a value in the box above to convert instantly — useful for recipes, drawings, product specs and travel between metric and imperial units.
atm to hPa conversion chart
| atm | hPa |
|---|---|
| 1 atm | 1,013.25 hPa |
| 2 atm | 2,026.5 hPa |
| 3 atm | 3,039.75 hPa |
| 5 atm | 5,066.25 hPa |
| 10 atm | 10,132.5 hPa |
| 20 atm | 20,265 hPa |
| 50 atm | 50,662.5 hPa |
| 100 atm | 101,325 hPa |
Frequently asked questions
- How many hPa are in one atm?
- 1 atm = 1,013.25 hPa.
- How do I convert hPa back to atm?
- Multiply the hPa value by 0.0009869233 to get atm.
- Is my input sent to a server?
- No. Everything is calculated locally in your browser and nothing is uploaded or stored.