Convert hectopascals to atmosphere (standard)s
1 hPa = 0.000986923266716 atm — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 27 pressure & stress units
- Gigapascals GPa 0.000 000 1
- Megapascals MPa 0.0001
- Kilopascals kPa 0.1
- Hectopascals hPa 1
- Pascals Pa 100
- Millipascals mPa 100 000
- Micropascals µPa 100 000 000
- Bars bar 0.001
- Millibars mbar 1
- Atmosphere (standard)s atm 0.000 986 923 266 716
- Atmosphere (technical)s at 0.001 019 716 212 98
- Torrs Torr 0.750 061 682 704
- Millitorrs mTorr 750.061 682 704
- Millimeter of mercurys mmHg 0.750 061 575 846
- Centimeter of mercurys cmHg 0.075 006 157 584 6
- Inch of mercurys inHg 0.029 529 983 301
- Millimeter of waters mmH₂O 10.197 162 129 8
- Centimeter of waters cmH₂O 1.019 716 212 98
- Inch of waters inH₂O 0.401 463 075 976
- Foot of waters ftH₂O 0.033 455 256 331 3
- Pound per square inchs psi 0.014 503 773 773
- Kilopound per square inchs ksi 0.000 014 503 773 773
- Pound per square foots psf 2.088 543 423 32
- Kilogram-force per square centimeters kgf/cm² 0.001 019 716 212 98
- Kilogram-force per square meters kgf/m² 10.197 162 129 8
- Newton per square millimeters N/mm² 0.0001
- Dyne per square centimeters dyn/cm² 1000
Every row is Hectopascal (hPa) converted through the pascal, in exact rational arithmetic.
How to convert hectopascals to atmosphere (standard)s
Multiply the number of hectopascals by 0.000986923266716 to get atmosphere (standard)s.
Atmosphere (standard): Exactly 101 325 Pa by definition.
Hectopascal to Atmosphere (standard) conversion table
| Hectopascals (hPa) | Atmosphere (standard)s (atm) |
|---|---|
| 1 hPa | 0.000 986 923 27 |
| 2 hPa | 0.001 973 846 5 |
| 3 hPa | 0.002 960 769 8 |
| 5 hPa | 0.004 934 616 3 |
| 10 hPa | 0.009 869 232 7 |
| 20 hPa | 0.019 738 465 |
| 25 hPa | 0.024 673 082 |
| 50 hPa | 0.049 346 163 |
| 100 hPa | 0.098 692 327 |
| 250 hPa | 0.246 730 82 |
| 500 hPa | 0.493 461 63 |
| 1000 hPa | 0.986 923 27 |
Atmosphere (standard) to Hectopascal conversion table
| Atmosphere (standard)s (atm) | Hectopascals (hPa) |
|---|---|
| 1 atm | 1013.25 |
| 2 atm | 2026.5 |
| 3 atm | 3039.75 |
| 5 atm | 5066.25 |
| 10 atm | 10 132.5 |
| 20 atm | 20 265 |
| 25 atm | 25 331.25 |
| 50 atm | 50 662.5 |
| 100 atm | 101 325 |
| 250 atm | 253 312.5 |
| 500 atm | 506 625 |
| 1000 atm | 1 013 250 |
Frequently asked
How many atmosphere (standard)s are in a hectopascal?
One hectopascal equals 0.0009869232667 atmosphere (standard)s (hPa → atm). That figure is exact, not rounded.
How do you convert hectopascals to atmosphere (standard)s?
Multiply the number of hectopascals by 0.000986923266716 to get atmosphere (standard)s.
What is 1 atm in hectopascals?
One atmosphere (standard) is 1013.25 hectopascals.
What is 10 hPa in atm?
10 hPa = 0.009 869 232 7 atm.
What exactly is a atmosphere (standard)?
Exactly 101 325 Pa by definition.