Convert Kilopascals to Inches of Mercury
Convert Kilopascals (kPa) to Inches of Mercury (inHg) instantly and accurately.
Conversion Formula
inHg = kPa × 0.295299833
About Kilopascals
A kilopascal (kPa) = 1,000 Pa - the practical everyday SI pressure unit for moderate pressures. Car tyre inflation: 200-250 kPa (29-36 psi); truck tyres 550-830 kPa. Blood pressure in SI countries: 16/10.7 kPa (= 120/80 mmHg). Systolic blood pressure 16 kPa. Carbonated beverages are packaged at 200-500 kPa CO₂. Medical oxygen cylinders at 15,000 kPa; scuba cylinders 200-300 bar = 20,000-30,000 kPa. 1 kPa = 1,000 Pa = 0.01 bar = 0.145 psi.
About Inches of Mercury
One inch of mercury (inHg) ≈ 3,386 Pa - the primary barometric pressure unit in US aviation and meteorology. ASOS weather stations, METARs, and altimeter settings in the US report in inHg. Standard sea-level pressure is 29.92 inHg. Altimeters are set to local QNH in inHg to maintain altitude reference. US barometers for home weather stations display inHg. Typical pressure range: 28.5-31.0 inHg in continental weather systems. Record low: ~25.70 inHg (Typhoon Tip, 1979). 1 inHg = 3,386.39 Pa.
Quick Reference Table
| Kilopascals (kPa) | Inches of Mercury (inHg) |
|---|---|
| 1 kPa | 0.2953 inHg |
| 2 kPa | 0.5906 inHg |
| 5 kPa | 1.4765 inHg |
| 10 kPa | 2.953 inHg |
| 25 kPa | 7.3825 inHg |
| 50 kPa | 14.765 inHg |
| 100 kPa | 29.53 inHg |