bars to mm of water
Convert bar to mm of water — instant, free, with the formula shown.
How to convert bar to mm of water
To convert bar to mm of water, multiply by 10197.16212978:
For example, 10 bar × 10197.16213 = 101971.621298 mmH₂O.
bar to mmH₂O conversion table
| bars (bar) | mm of water (mmH₂O) |
|---|---|
| 1 bar | 10197.16213 mmH₂O |
| 2 bar | 20394.32426 mmH₂O |
| 5 bar | 50985.810649 mmH₂O |
| 10 bar | 101971.621298 mmH₂O |
| 25 bar | 254929.053244 mmH₂O |
| 50 bar | 509858.106489 mmH₂O |
| 100 bar | 1019716.212978 mmH₂O |
| 250 bar | 2549290.532445 mmH₂O |
| 500 bar | 5098581.06489 mmH₂O |
| 1000 bar | 10197162.129779 mmH₂O |
Other bar conversions
Convert to mm of water from another unit
bar to mmH₂O — frequently asked
How many mm of water are in 1 bar?
1 bar = 10197.16213 mm of water (bar × 10197.16213 = mmH₂O).
What is the formula to convert bar to mm of water?
Multiply your bar value by 10197.16212978 to get mm of water.
How do I convert 10 bars to mm of water?
10 bar = 101971.621298 mmH₂O. For 100 bar the answer is 1019716.212978 mmH₂O. Use the calculator on this page for any other value.
When to convert bar to mm of water
Pressure conversion — common questions
What's the difference between bar and psi?
1 bar = 100,000 Pa ≈ 14.504 psi. Bar is metric/SI-friendly; psi is US imperial. Tire pressure in cars is commonly 30–35 psi or ≈ 2.1–2.4 bar.
Is 1 atmosphere the same as 1 bar?
Very close but not identical. 1 atm = 1.01325 bar = 101,325 Pa. 1 bar = 100,000 Pa.
Why is blood pressure in mmHg?
Historically measured with mercury manometers — the pressure that supports a column of mercury that many millimetres tall. 120 mmHg systolic ≈ 16 kPa.