Kilopascals (kPa) to Inches of mercury (inHg) Conversion
Kilopascals
The kilopascal (kPa) is a unit of pressure equal to exactly 1,000 pascals and is one of the most practical pressure units for everyday engineering. Standard atmospheric pressure is approximately 101.3 kPa. Tyre pressure is commonly specified in kPa in metric countries: a typical car tyre is inflated to 220–250 kPa. Blood pressure in clinical settings is measured in mmHg, but some medical devices express it in kPa (normal systolic ≈ 16 kPa).
Inches of mercury
The inch of mercury (inHg) is a unit of pressure equal to the pressure exerted by a column of mercury 1 inch (25.4 mm) high — approximately 3,386.39 Pa or 0.0334 atm. It is used in US aviation for altimeter settings (standard pressure is 29.92 inHg) and in US weather reports for barometric pressure. Pilots set their altimeters in inHg based on local barometric pressure to ensure accurate altitude readings.
| Kilopascals (kPa) | Inches of mercury (inHg) |
|---|---|
| 0.1 kPa | 0.0295 inHg |
| 1 kPa | 0.2953 inHg |
| 2 kPa | 0.5906 inHg |
| 3 kPa | 0.8859 inHg |
| 5 kPa | 1.4765 inHg |
| 10 kPa | 2.953 inHg |
| 20 kPa | 5.906 inHg |
| 30 kPa | 8.859 inHg |
| 50 kPa | 14.765 inHg |
| 100 kPa | 29.53 inHg |
| 1000 kPa | 295.2998 inHg |
Frequently Asked Questions (FAQ)
How many inches of mercury are in 1 kilopascals?
1 kilopascals (kPa) is exactly 0.2953 inches of mercury (inHg).
How do I convert kilopascals to inches of mercury?
Multiply the value in kilopascals by 0.2953 to get the result in inches of mercury. Or use the converter above — type any number and see the result instantly.