1 inHg = 25.400076155932 mmHg
1 Inch of mercury (inHg) = 25.400076155932 Millimeter of mercury (mmHg).
If you want to reverse convert, use Millimeter of mercury → Inch of mercury. 1 mmHg = 0.039369960698581 inHg. You can also explore the full Pressure converter page for more cross conversions.
Conversion formula
Inch of mercury to Millimeter of mercury formula: value in mmHg = value in inHg × 25.400076155932.
Millimeter of mercury to Inch of mercury formula: value in inHg = value in mmHg × 0.039369960698581.
How to convert Inch of mercury to Millimeter of mercury
To convert Inch of mercury to Millimeter of mercury, multiply the value in inHg by 25.400076155932. This gives the result in mmHg.
For example, 1 inHg = 25.400076155932 mmHg and 10 inHg = 254.00076155932 mmHg.
What is Inch of mercury?
Inch of mercury (inHg): A mercury-column scale used in some aviation altimeters and weather reports. 1 inHg ≈ 3386.38895 Pa.
What is Millimeter of mercury?
Millimeter of mercury (mmHg): A mercury-column pressure unit familiar from blood-pressure readings. 1 mmHg ≈ 133.322 Pa.
FAQ
How many millimeter of mercury are in 1 inch of mercury?
There are 25.400076155932 mmHg in 1 inHg.
Why can conversion results differ slightly?
Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.
How do I convert inch of mercury to millimeter of mercury?
Multiply the value in inHg by 25.400076155932 to get the value in mmHg.
Inch of mercury → other Pressure units
- 1 inch of mercury → pascal = 3386.3889532611 pascal
- 1 inch of mercury → hectopascal = 33.863889532611 hectopascal
- 1 inch of mercury → kilopascal = 3.3863889532611 kilopascal
- 1 inch of mercury → megapascal = 0.0033863889532611 megapascal
- 1 inch of mercury → bar = 0.033863889532611 bar
- 1 inch of mercury → millibar = 33.863889532611 millibar
- 1 inch of mercury → pounds per square inch = 0.49115400003207 pounds per square inch
- 1 inch of mercury → torr = 25.400076155932 torr
- 1 inch of mercury → atmosphere = 0.033421060481235 atmosphere
- 1 inch of mercury → millimeter of mercury = 25.400076155932 millimeter of mercury
Inch of mercury → Millimeter of mercury Table
The table below shows common values from Inch of mercury to Millimeter of mercury and the reverse direction for quick reference.
| inHg | mmHg | Rounded |
|---|---|---|
| 1 inHg | 25.400076155932 mmHg | 25.4001 |
| 2 inHg | 50.800152311863 mmHg | 50.8002 |
| 3 inHg | 76.200228467795 mmHg | 76.2002 |
| 4 inHg | 101.60030462373 mmHg | 101.6003 |
| 5 inHg | 127.00038077966 mmHg | 127.0004 |
| 10 inHg | 254.00076155932 mmHg | 254.0008 |
| 12 inHg | 304.80091387118 mmHg | 304.8009 |
| 15 inHg | 381.00114233897 mmHg | 381.0011 |
| 20 inHg | 508.00152311863 mmHg | 508.0015 |
| 25 inHg | 635.00190389829 mmHg | 635.0019 |
| 30 inHg | 762.00228467795 mmHg | 762.0023 |
| 40 inHg | 1016.0030462373 mmHg | 1016.0030 |
| 50 inHg | 1270.0038077966 mmHg | 1270.0038 |
| 75 inHg | 1905.0057116949 mmHg | 1905.0057 |
| 100 inHg | 2540.0076155932 mmHg | 2540.0076 |
| 200 inHg | 5080.0152311863 mmHg | 5080.0152 |
| 250 inHg | 6350.0190389829 mmHg | 6350.0190 |
| 500 inHg | 12700.038077966 mmHg | 12700.0381 |
| 750 inHg | 19050.057116949 mmHg | 19050.0571 |
| 1000 inHg | 25400.076155932 mmHg | 25400.0762 |
| 2500 inHg | 63500.190389829 mmHg | 63500.1904 |
| 5000 inHg | 127000.38077966 mmHg | 127000.3808 |
| 10000 inHg | 254000.76155932 mmHg | 254000.7616 |
Millimeter of mercury → Inch of mercury Table
| mmHg | inHg | Rounded |
|---|---|---|
| 1 mmHg | 0.039369960698581 inHg | 0.0394 |
| 2 mmHg | 0.078739921397163 inHg | 0.0787 |
| 3 mmHg | 0.11810988209574 inHg | 0.1181 |
| 4 mmHg | 0.15747984279433 inHg | 0.1575 |
| 5 mmHg | 0.19684980349291 inHg | 0.1968 |
| 10 mmHg | 0.39369960698581 inHg | 0.3937 |
| 12 mmHg | 0.47243952838298 inHg | 0.4724 |
| 15 mmHg | 0.59054941047872 inHg | 0.5905 |
| 20 mmHg | 0.78739921397163 inHg | 0.7874 |
| 25 mmHg | 0.98424901746454 inHg | 0.9842 |
| 30 mmHg | 1.1810988209574 inHg | 1.1811 |
| 40 mmHg | 1.5747984279433 inHg | 1.5748 |
| 50 mmHg | 1.9684980349291 inHg | 1.9685 |
| 75 mmHg | 2.9527470523936 inHg | 2.9527 |
| 100 mmHg | 3.9369960698581 inHg | 3.9370 |
| 200 mmHg | 7.8739921397163 inHg | 7.8740 |
| 250 mmHg | 9.8424901746454 inHg | 9.8425 |
| 500 mmHg | 19.684980349291 inHg | 19.6850 |
| 750 mmHg | 29.527470523936 inHg | 29.5275 |
| 1000 mmHg | 39.369960698581 inHg | 39.3700 |
| 2500 mmHg | 98.424901746454 inHg | 98.4249 |
| 5000 mmHg | 196.84980349291 inHg | 196.8498 |
| 10000 mmHg | 393.69960698581 inHg | 393.6996 |
Millimeter of mercury → Inch of mercury
The reverse value is 1 mmHg = 0.039369960698581 inHg.