1 hPa = 0.00098692326671601 atm
1 Hectopascal (hPa) = 0.00098692326671601 Atmosphere (atm).
If you want to reverse convert, use Atmosphere → Hectopascal. 1 atm = 1013.25 hPa. You can also explore the full Pressure converter page for more cross conversions.
Conversion formula
Hectopascal to Atmosphere formula: value in atm = value in hPa × 0.00098692326671601.
Atmosphere to Hectopascal formula: value in hPa = value in atm × 1013.25.
How to convert Hectopascal to Atmosphere
To convert Hectopascal to Atmosphere, multiply the value in hPa by 0.00098692326671601. This gives the result in atm.
For example, 1 hPa = 0.00098692326671601 atm and 10 hPa = 0.0098692326671601 atm.
What is Hectopascal?
Hectopascal (hPa): Weather reports use this scale for atmospheric pressure, often around a thousand hectopascals near sea level. 1 hPa = 100 Pa.
What is Atmosphere?
Atmosphere (atm): A reference pressure for comparing gas conditions, rather than a reading of today’s weather. 1 atm = 101 325 Pa.
FAQ
How many atmosphere are in 1 hectopascal?
There are 0.00098692326671601 atm in 1 hPa.
Why can conversion results differ slightly?
Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.
How do I convert hectopascal to atmosphere?
Multiply the value in hPa by 0.00098692326671601 to get the value in atm.
Hectopascal → other Pressure units
- 1 hectopascal → pascal = 100 pascal
- 1 hectopascal → kilopascal = 0.1 kilopascal
- 1 hectopascal → megapascal = 0.0001 megapascal
- 1 hectopascal → bar = 0.001 bar
- 1 hectopascal → millibar = 1 millibar
- 1 hectopascal → pounds per square inch = 0.014503768078947 pounds per square inch
- 1 hectopascal → torr = 0.75006375541921 torr
- 1 hectopascal → atmosphere = 0.00098692326671601 atmosphere
- 1 hectopascal → millimeter of mercury = 0.75006375541921 millimeter of mercury
- 1 hectopascal → inch of mercury = 0.029529980572285 inch of mercury
Hectopascal → Atmosphere Table
The table below shows common values from Hectopascal to Atmosphere and the reverse direction for quick reference.
| hPa | atm | Rounded |
|---|---|---|
| 1 hPa | 0.00098692326671601 atm | 0.0010 |
| 2 hPa | 0.001973846533432 atm | 0.0020 |
| 3 hPa | 0.002960769800148 atm | 0.0030 |
| 4 hPa | 0.0039476930668641 atm | 0.0039 |
| 5 hPa | 0.0049346163335801 atm | 0.0049 |
| 10 hPa | 0.0098692326671601 atm | 0.0099 |
| 12 hPa | 0.011843079200592 atm | 0.0118 |
| 15 hPa | 0.01480384900074 atm | 0.0148 |
| 20 hPa | 0.01973846533432 atm | 0.0197 |
| 25 hPa | 0.0246730816679 atm | 0.0247 |
| 30 hPa | 0.02960769800148 atm | 0.0296 |
| 40 hPa | 0.039476930668641 atm | 0.0395 |
| 50 hPa | 0.049346163335801 atm | 0.0493 |
| 75 hPa | 0.074019245003701 atm | 0.0740 |
| 100 hPa | 0.098692326671601 atm | 0.0987 |
| 200 hPa | 0.1973846533432 atm | 0.1974 |
| 250 hPa | 0.246730816679 atm | 0.2467 |
| 500 hPa | 0.49346163335801 atm | 0.4935 |
| 750 hPa | 0.74019245003701 atm | 0.7402 |
| 1000 hPa | 0.98692326671601 atm | 0.9869 |
| 2500 hPa | 2.46730816679 atm | 2.4673 |
| 5000 hPa | 4.9346163335801 atm | 4.9346 |
| 10000 hPa | 9.8692326671601 atm | 9.8692 |
Atmosphere → Hectopascal Table
| atm | hPa | Rounded |
|---|---|---|
| 1 atm | 1013.25 hPa | 1013.2500 |
| 2 atm | 2026.5 hPa | 2026.5000 |
| 3 atm | 3039.75 hPa | 3039.7500 |
| 4 atm | 4053 hPa | 4053.0000 |
| 5 atm | 5066.25 hPa | 5066.2500 |
| 10 atm | 10132.5 hPa | 10132.5000 |
| 12 atm | 12159 hPa | 12159.0000 |
| 15 atm | 15198.75 hPa | 15198.7500 |
| 20 atm | 20265 hPa | 20265.0000 |
| 25 atm | 25331.25 hPa | 25331.2500 |
| 30 atm | 30397.5 hPa | 30397.5000 |
| 40 atm | 40530 hPa | 40530.0000 |
| 50 atm | 50662.5 hPa | 50662.5000 |
| 75 atm | 75993.75 hPa | 75993.7500 |
| 100 atm | 101325 hPa | 101325.0000 |
| 200 atm | 202650 hPa | 202650.0000 |
| 250 atm | 253312.5 hPa | 253312.5000 |
| 500 atm | 506625 hPa | 506625.0000 |
| 750 atm | 759937.5 hPa | 759937.5000 |
| 1000 atm | 1013250 hPa | 1013250.0000 |
| 2500 atm | 2533125 hPa | 2533125.0000 |
| 5000 atm | 5066250 hPa | 5066250.0000 |
| 10000 atm | 10132500 hPa | 10132500.0000 |
Atmosphere → Hectopascal
The reverse value is 1 atm = 1013.25 hPa.