Millimeters of mercury to Inches of mercury

1 mmHg ≈ 0.03937 inHg. Edit either value to convert instantly.

Value

From

1 mmHg≈inHg

≈ 133.322 Pa

Decimal places

Conversion formula

inHg = mmHg × (133.322387415) × (1 × 10⁹ / 3.386388640341 × 10¹²)

1 mmHg ≈ 0.0393701 inHg

millimeter of mercury (mmHg)

Millimeter of mercury is a unit of pressure: 1 mmHg = 133.322387415 Pa. This is conventional mercury at 0 °C and standard gravity; 1 torr is slightly different.

Source: NIST SP 811, Appendix B.9: conversion factors by quantity

inch of mercury (inHg)

Inch of mercury is a unit of pressure: 1 inHg = 3,386.388640341 Pa. Uses the conventional mercury column at 0 °C under standard gravity.

Source: NIST SP 811, Appendix B.9: conversion factors by quantity

Conversion table

mmHg	inHg
	≈ 0.0393701
	≈ 0.0787402
	≈ 0.19685
	≈ 0.393701
	≈ 0.590551
	≈ 0.787402
	≈ 0.984252
	≈ 1.1811
	≈ 1.5748
	≈ 1.77165

mmHg	inHg
	≈ 1.9685
	≈ 2.3622
	≈ 2.75591
	≈ 3.14961
	≈ 3.54331
	≈ 3.93701
	≈ 5.90551
	≈ 6.29921
	≈ 6.69291
	≈ 7.08661

Frequently asked questions

How many inches of mercury are in 1 millimeter of mercury?

1 mmHg ≈ 0.03937 inHg. inHg = mmHg × (133.322387415) × (1 × 10⁹ / 3.386388640341 × 10¹²)

How do I convert mmHg to inHg?

inHg = mmHg × (133.322387415) × (1 × 10⁹ / 3.386388640341 × 10¹²)

Is 1 millimeter of mercury bigger than 1 inch of mercury?

1 mmHg ≈ 0.03937 inHg.

Related conversions

Reverse conversion: inches of mercury to millimeters of mercury pounds-force per square inch to bars