Inches of mercury to kilopascals converter
Kilopascals (kPa)
1 inch of mercury = 3.386389 kilopascals
How to convert inches of mercury to kilopascals
kPa = inHg × 3.386389
Multiply the number of inches of mercury by 3.386389 to get kilopascals. Going the other way, divide by 3.386389 (or multiply by 0.295299801647).
One inch of mercury is exactly defined as 3.386389 kilopascals (to 12 significant figures), and one kilopascal is 0.295299801647 inches of mercury.
Worked examples
- Convert 5 inches of mercury: 5 × 3.386389 = 16.931945 16.931945 kilopascals.
- Convert 12.5 inches of mercury: 12.5 × 3.386389 = 42.3298625 42.3298625 kilopascals.
- Convert 250 inches of mercury: 250 × 3.386389 = 846.59725 846.59725 kilopascals.
Quick-reference table
| inHg | kPa |
|---|---|
| 1 | 3.386389 |
| 2 | 6.772778 |
| 3 | 10.159167 |
| 5 | 16.931945 |
| 10 | 33.86389 |
| 15 | 50.795835 |
| 20 | 67.72778 |
| 25 | 84.659725 |
| 50 | 169.31945 |
| 75 | 253.979175 |
| 100 | 338.6389 |
| 1,000 | 3,386.389 |
| kPa | inHg |
|---|---|
| 1 | 0.2952998016 |
| 2 | 0.5905996033 |
| 3 | 0.8858994049 |
| 5 | 1.476499008 |
| 10 | 2.952998016 |
| 15 | 4.429497025 |
| 20 | 5.905996033 |
| 25 | 7.382495041 |
| 50 | 14.76499008 |
| 75 | 22.14748512 |
| 100 | 29.52998016 |
| 1,000 | 295.2998016 |
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Frequently asked questions
How many kilopascals are in 1 inch of mercury?
1 inch of mercury equals 3.386389 kilopascals.
What is the formula to convert inches of mercury to kilopascals?
Use kPa = inHg × 3.386389. Multiply the number of inches of mercury by 3.386389 to get kilopascals. Going the other way, divide by 3.386389 (or multiply by 0.295299801647).
What is 100 inches of mercury in kilopascals?
100 inches of mercury is 338.6389 kilopascals.