Convert hectopascals to bars
1 hPa = 0.001 bar — 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 bars
Multiply the number of hectopascals by 0.001 to get bars.
The exact factor is 0.001 — as a fraction, 1/1000.
Bar: Exactly 100 kPa. Close to atmospheric pressure, which is why it caught on.
Hectopascal to Bar conversion table
| Hectopascals (hPa) | Bars (bar) |
|---|---|
| 1 hPa | 0.001 |
| 2 hPa | 0.002 |
| 3 hPa | 0.003 |
| 5 hPa | 0.005 |
| 10 hPa | 0.01 |
| 20 hPa | 0.02 |
| 25 hPa | 0.025 |
| 50 hPa | 0.05 |
| 100 hPa | 0.1 |
| 250 hPa | 0.25 |
| 500 hPa | 0.5 |
| 1000 hPa | 1 |
Bar to Hectopascal conversion table
| Bars (bar) | Hectopascals (hPa) |
|---|---|
| 1 bar | 1000 |
| 2 bar | 2000 |
| 3 bar | 3000 |
| 5 bar | 5000 |
| 10 bar | 10 000 |
| 20 bar | 20 000 |
| 25 bar | 25 000 |
| 50 bar | 50 000 |
| 100 bar | 100 000 |
| 250 bar | 250 000 |
| 500 bar | 500 000 |
| 1000 bar | 1 000 000 |
Frequently asked
How many bars are in a hectopascal?
One hectopascal equals 0.001 bars (hPa → bar). That figure is exact, not rounded.
How do you convert hectopascals to bars?
Multiply the number of hectopascals by 0.001 to get bars.
What is 1 bar in hectopascals?
One bar is 1000 hectopascals.
What is 10 hPa in bar?
10 hPa = 0.01 bar.
What exactly is a bar?
Exactly 100 kPa. Close to atmospheric pressure, which is why it caught on.