Pressure
kPatommHg
Convert kilopascals (kPa) to millimetres of mercury (mmHg).
Factor1 kPa = 7.500616 mmHg
Converter
kPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mmHg
Rendered to 6 significant figures.
Formula
Formula
mmHg = kPa × 7.500616
Multiply any value in kilopascals by 7.500616 to obtain the value in millimetres of mercury.
Worked example
Convert 100 kPa to mmHg.
- 01Start with 100 kPa.
- 02Multiply by the conversion factor: 100 × 7.500616 = 750.062 mmHg.
Result100 kPa = 750.062 mmHg
Conversion table
| kPa | mmHg |
|---|---|
| 1 | 7.5006 |
| 2 | 15.001 |
| 5 | 37.503 |
| 10 | 75.006 |
| 20 | 150.01 |
| 50 | 375.03 |
| 100 | 750.06 |
| 200 | 1500.1 |
| 500 | 3750.3 |
| 1000 | 7500.6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kPa to mmHg?
1 kPa equals 7.500616 mmHg. To convert, multiply the value in kilopascals by 7.500616.
How do I convert 1 kPa to mmHg?
1 kPa = 7.50062 mmHg. For any value, multiply by 7.500616.
How do I convert mmHg back to kPa?
Divide by the same factor — or equivalently, multiply by 0.1333224. So 1 mmHg = 0.133322 kPa.
When would I need to convert kilopascal to millimetre of mercury?
Pressure conversions between kPa and mmHg are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).