inHg to mmHg
10 inHg = 254.0008401 mmHg
254.0008401
About these units
inHg
The inch of mercury equals about 3,386 pascals and is used in US weather reports and aviation for atmospheric pressure.
mmHg
The millimeter of mercury equals the pressure of a 1 mm column of mercury, about 133.3 pascals. It's standard for blood pressure readings.
Conversion formula
To convert inHg to mmHg, multiply the value by 25.40008401.
Quick reference
| inHg | mmHg |
|---|---|
| 1 | 25.40008401 |
| 2 | 50.80016801 |
| 5 | 127.00042 |
| 10 | 254.0008401 |
| 100 | 2,540.008401 |
Frequently asked questions
- How many mmHg are in one inHg?
- 1 inHg = 25.40008401 mmHg.
- How many inHg are in one mmHg?
- 1 mmHg = 0.03936994853 inHg.
Related tools
N
Force
Convert between newtons, kilonewtons, pounds-force, dynes, and kilograms-force.
kg/m³
Density
Convert between kg/m³, g/cm³, g/mL, lb/ft³, lb/gal, and oz/in³.
°C
Temperature
Convert between Celsius, Fahrenheit, and Kelvin.
J
Energy
Convert between joules, calories, kilocalories, kilowatt-hours, BTU, and electronvolts.