Hectopascals to Inches of Mercury Converter
Type a value in hectopascals to see it in inches of mercury. It works both ways: type in the inches of mercury box to convert back.
Formula
To convert hectopascals to inches of mercury, divide by 33.8638864 (the same as multiplying by 0.0295299833).
1 hPa = 0.029529983301 inHg and 1 inHg = 33.8638864034 hPa.
Hectopascals to inches of mercury table
| Hectopascals | Inches of mercury |
|---|---|
| 950 hPa | 28.05348 inHg |
| 980 hPa | 28.93938 inHg |
| 990 hPa | 29.23468 inHg |
| 1,000 hPa | 29.52998 inHg |
| 1,013.25 hPa | 29.92126 inHg |
| 1,020 hPa | 30.12058 inHg |
| 1,030 hPa | 30.41588 inHg |
| 1,050 hPa | 31.00648 inHg |
Worked examples
980 hPa in inches of mercury
980 hPa
28.93938 inHg
980 × 0.0295299833 = 28.93938363
1,013.25 hPa in inches of mercury
1,013.25 hPa
29.92126 inHg
1,013.25 × 0.0295299833 = 29.92125558
1,030 hPa in inches of mercury
1,030 hPa
30.41588 inHg
1,030 × 0.0295299833 = 30.4158828
About Hectopascals to Inches of Mercury Converter
This converter turns hectopascals into inches of mercury as you type, and works the other way too: type in the inches of mercury box to convert back. To convert hectopascals to inches of mercury, divide by 33.8638864 (the same as multiplying by 0.0295299833). For example, 980 hPa is 28.93938 inHg, and 1,013.25 hPa is 29.92126 inHg.
Pressure is quoted in different units for tyres, weather, blood pressure and engineering, so converting between bar, psi, kilopascals and millimetres of mercury is common. Both units have exact definitions, so the converter gives an exact result, rounded only for display. Use the table below for common values, or set the decimal places to round the answer for a form or a label.
How to use Hectopascals to Inches of Mercury Converter
- Type the amount in hectopascals in the first box.
- Read the answer in inches of mercury in the second box and in the result line below.
- To convert the other way, type in the inches of mercury box instead, or use the swap button to open the inches of mercury to hectopascals page.
- Choose a number of decimal places if you need a rounded figure, then copy the result line.
Common uses
- Reading air pressure on a barometer or forecast
- Understanding a blood pressure reading
- Checking boiler, pump or compressor pressures
- Setting tyre pressures from a handbook in another unit
Frequently asked questions
How many inches of mercury are in one hectopascal?
There are 0.0295299833 inches of mercury in one hectopascal. This figure is exact, because both units have fixed definitions.
How do I convert hectopascals to inches of mercury?
To convert hectopascals to inches of mercury, divide by 33.8638864 (the same as multiplying by 0.0295299833). For example, 1,030 hPa is 30.41588 inHg.
How do I convert inches of mercury to hectopascals?
Going the other way, multiply by 33.8638864. The inches of mercury to hectopascals converter does this for you.
What is 1,013.25 hPa in inches of mercury?
1,013.25 hPa is 29.92126 inHg.
What is normal air pressure at sea level?
Standard atmospheric pressure is 1,013.25 hectopascals, which is 1 atmosphere, about 14.7 psi or 760 mmHg. Real air pressure changes with the weather.