Convert inch of water to bar
Here you can quickly calculate how many bar fit in one inch of water.
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- 1 inH₂O = 0.002491 bar
- 1 bar = 401.463076 inH₂O
Conversion from inch of water to bar example
- 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 |
Formula to convert inch of water to bar
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 mistakes in pressure conversion
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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 to/from bar conversion quiz
Score:
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15 bar equals 6.02e+3 inch of water.
Correct answer: 15 bar = 6.02e+3 inch of water.
10.9 inch of water equals 0.0272 bar.
Correct answer: 10.9 inch of water = 0.0272 bar.
80 bar equals 3.21e+4 inch of water.
Correct answer: 80 bar = 3.21e+4 inch of water.
171 inch of water equals 0.852 bar.
Correct answer: 171 inch of water = 0.426 bar.