Toolman

Convert Millimeters of Mercury to Inches of Mercury

1 millimeter of mercury = 0.03937007 inches of mercury. Type any value below to convert in either direction — the calculation happens in your browser.

Millimeters of Mercury to Inches of Mercury formula

Multiply the number of millimeters of mercury by 0.03937007 to get inches of mercury.

inches of mercury = millimeters of mercury × 0.03937007

To go the other way: divide the number of inches of mercury by 0.03937007, or multiply by 25.400003.

millimeters of mercury = inches of mercury ÷ 0.03937007

Millimeters of Mercury to Inches of Mercury conversion table

Millimeters of MercuryInches of Mercury
1 mmHg0.03937007 inHg
2 mmHg0.07874015 inHg
3 mmHg0.1181102 inHg
4 mmHg0.1574803 inHg
5 mmHg0.1968504 inHg
6 mmHg0.2362204 inHg
7 mmHg0.2755905 inHg
8 mmHg0.3149606 inHg
9 mmHg0.3543307 inHg
10 mmHg0.3937007 inHg
15 mmHg0.5905511 inHg
20 mmHg0.7874015 inHg
25 mmHg0.9842519 inHg
30 mmHg1.181102 inHg
40 mmHg1.574803 inHg
50 mmHg1.968504 inHg
75 mmHg2.952756 inHg
100 mmHg3.937007 inHg
250 mmHg9.842519 inHg
500 mmHg19.685037 inHg
1,000 mmHg39.370075 inHg

Inches of Mercury to Millimeters of Mercury conversion table

Inches of MercuryMillimeters of Mercury
1 inHg25.400003 mmHg
2 inHg50.800005 mmHg
3 inHg76.200008 mmHg
4 inHg101.600011 mmHg
5 inHg127.000013 mmHg
6 inHg152.400016 mmHg
7 inHg177.800019 mmHg
8 inHg203.200022 mmHg
9 inHg228.600024 mmHg
10 inHg254.000027 mmHg

About the millimeter of mercury

A millimetre of mercury is the unit of blood pressure and vacuum measurement, about 133.3 pascals.

About the inch of mercury

Inches of mercury are used in US aviation altimeter settings and barometric reports.

Frequently asked questions

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

There are 0.03937007 inches of mercury in one millimeter of mercury.

How many millimeters of mercury are in a inch of mercury?

There are 25.400003 millimeters of mercury in one inch of mercury.

Is this conversion exact?

The ratio between the millimeter of mercury and the inch of mercury is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.

What is 10 millimeters of mercury in inches of mercury?

10 millimeters of mercury equals 0.3937007 inches of mercury.

Related pressure conversions

All pressure converters · All converters