mm of water to kilopascals
Convert mm of water to kilopascal — instant, free, with the formula shown.
How to convert mm of water to kilopascal
To convert mm of water to kilopascal, multiply by 0.00980665:
For example, 10 mmH₂O × 0.009807 = 0.098067 kPa.
mmH₂O to kPa conversion table
| mm of water (mmH₂O) | kilopascals (kPa) |
|---|---|
| 1 mmH₂O | 0.009807 kPa |
| 2 mmH₂O | 0.019613 kPa |
| 5 mmH₂O | 0.049033 kPa |
| 10 mmH₂O | 0.098066 kPa |
| 25 mmH₂O | 0.245166 kPa |
| 50 mmH₂O | 0.490333 kPa |
| 100 mmH₂O | 0.980665 kPa |
| 250 mmH₂O | 2.451662 kPa |
| 500 mmH₂O | 4.903325 kPa |
| 1000 mmH₂O | 9.80665 kPa |
Other mm of water conversions
Convert to kilopascal from another unit
mmH₂O to kPa — frequently asked
How many kilopascals are in 1 mm of water?
1 mm of water = 0.009807 kilopascals (mmH₂O × 0.009807 = kPa).
What is the formula to convert mm of water to kilopascal?
Multiply your mm of water value by 0.00980665 to get kilopascal.
How do I convert 10 mm of water to kilopascals?
10 mmH₂O = 0.098066 kPa. For 100 mmH₂O the answer is 0.980665 kPa. Use the calculator on this page for any other value.
When to convert mm of water to kilopascal
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.