Inch of water (60 °F) to Standard atmosphere (inH₂O → atm)
Convert inch of water (60 °f) to standard atmosphere instantly. The conversion factor is approximate to engineering precision.
Realtime·pressure·imperial
Approx
inH₂O
× 0.0025
atm
0.002456
Precision [auto]
6
📐inH₂O to atm formulaApprox.
atm = inH₂O × 0.002455859857
Inverse: inH₂O = atm × 407.189358624015
Worked example: 1 inH₂O = 0.002455859857 atm
ℹ️About these units
Inch of water (60 °F) (inH₂O)
HVAC duct pressure.
Standard atmosphere (atm)
Source: 1 atm = 101 325 Pa exact (BIPM).
📊Reference table: inH₂O → atm
| Inch of water (60 °F) (inH₂O) | Standard atmosphere (atm) |
|---|---|
| 1 | 0.002456 |
| 2 | 0.004912 |
| 5 | 0.012279 |
| 10 | 0.024559 |
| 15 | 0.036838 |
| 20 | 0.049117 |
| 25 | 0.061396 |
| 50 | 0.122793 |
| 100 | 0.245586 |
| 250 | 0.613965 |
| 500 | 1.2279 |
| 750 | 1.8419 |
| 1,000 | 2.4559 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
🔌API & widget
GET https://convertnavi.com/api/v1/convert?value=10&from=inh2o&to=atmosphereEmbed this converter
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