ConvertNavi

Standard atmosphere to Inch of water (60 °F) (atm → inH₂O)

Convert standard atmosphere to inch of water (60 °f) instantly. The conversion factor is approximate to engineering precision.

Realtime·pressure·metric
Approx
atm
× 407.1894
inH₂O
407.1894
Precision [auto]
6

📐atm to inH₂O formulaApprox.

inH₂O = atm × 407.189358624015
Inverse: atm = inH₂O × 0.002455859857

Worked example: 1 atm = 407.189358624015 inH₂O

ℹ️About these units

Standard atmosphere (atm)
Source: 1 atm = 101 325 Pa exact (BIPM).
Inch of water (60 °F) (inH₂O)
HVAC duct pressure.

📊Reference table: atm → inH₂O

Standard atmosphere (atm)Inch of water (60 °F) (inH₂O)
1407.1894
2814.3787
52,035.95
104,071.89
156,107.84
208,143.79
2510,179.73
5020,359.47
10040,718.94
250101,797.34
500203,594.68
750305,392.02
1,000407,189.36

Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.

🔁Reverse & related

Reverse: inH₂O → atmatm → baratm → Paatm → kPaatm → MPaatm → hPaatm → mbaratm → psiatm → ksi

🔌API & widget

GET https://convertnavi.com/api/v1/convert?value=10&from=atmosphere&to=inh2o
Embed this converter
<div data-convertnavi="atmosphere->inh2o"></div>
<script async src="https://convertnavi.com/embed.js"></script>