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Inch of mercury to Pound per square inch (inHg → psi)

Convert inch of mercury to pound per square inch instantly. The conversion factor is approximate to engineering precision.

Realtime·pressure·imperial
Approx
inHg
× 0.4912
psi
0.491154
Precision [auto]
6

📐inHg to psi formulaApprox.

psi = inHg × 0.491154199634
Inverse: inHg = psi × 2.036020461078

Worked example: 1 inHg = 0.491154199634 psi

ℹ️About these units

Inch of mercury (inHg)
US weather barometric pressure.
Pound per square inch (psi)
US tire pressure, plumbing, industry.

📊Reference table: inHg → psi

Inch of mercury (inHg)Pound per square inch (psi)
10.491154
20.982308
52.4558
104.9115
157.3673
209.8231
2512.2789
5024.5577
10049.1154
250122.7885
500245.5771
750368.3656
1,000491.1542

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

🔁Reverse & related

Reverse: psi → inHginHg → PainHg → kPainHg → MPainHg → hPainHg → barinHg → mbarinHg → ksiinHg → atm

🔌API & widget

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