Convert inch of water to bar
Here you can quickly calculate how many bar fit in one inch of water.
Only numbers, with a single decimal separator.
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- 1 inH₂O = 0.002491 bar
- 1 bar = 401.463076 inH₂O
Example: inch of water to bar
- 1 inch of water = 0.002491 bar
Inch of water to bar conversion table
| inch of water | bar |
|---|---|
| 1 | 0.002491 |
| 2 | 0.004982 |
| 5 | 0.012454 |
| 10 | 0.024909 |
| 20 | 0.049818 |
| 50 | 0.124544 |
| 100 | 0.249089 |
Inch of water to bar formula
To convert inch of water to bar, multiply by 0.002491.
1 inH₂O = 0.002491 bar
Example: 1 inch of water = 0.002491 bar
Common pressure conversion mistakes
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Tire pressure is quoted in bar in Europe and psi in the US: 1 bar is about 14.5 psi. The recommended 2.5 bar equals about 36 psi, inflating to '25 psi' on the assumption they match leaves the tire dangerously underinflated. Multiply bar by 14.5 to get psi.
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One atmosphere is not exactly one bar: 1 atm = 1.01325 bar = 101.325 kPa. There is also the technical atmosphere (1 kgf/cm²) at about 0.981 bar. The ~1% differences rarely matter day to day, but engineering and diving calculations need the right unit.
Quick inch of water and bar conversion quiz
Score:
0
128 inch of water equals 0.478 bar.
Correct answer: 128 inch of water = 0.319 bar.
21.9 inch of water equals 0.0273 bar.
Correct answer: 21.9 inch of water = 0.0546 bar.
184 bar equals 148 000 inch of water.
Correct answer: 184 bar = 73 900 inch of water.