mmHg to kPa Converter
Quick answer: To convert mmHg to kPa, multiply by 0.1333224. For example, 10 mmHg is 1.333224 kPa. One millimeter of mercury equals 0.1333224 kPa.
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Use the mmHg to kPa Converter
mmHg to kPa formula and what each symbol means
kPa = mmHg × 0.1333224
| Symbol | Meaning |
|---|---|
| mmHg | Millimeter of mercury |
| kPa | Kilopascal |
mmHg to kPa examples
1 mmHg
1 mmHg × 0.1333224 = 0.1333224 kPa.
10 mmHg
10 mmHg × 0.1333224 = 1.333224 kPa.
100 mmHg
100 mmHg × 0.1333224 = 13.33224 kPa.
mmHg compared with kPa
One kPa is 7.501 times as large as one mmHg, so your number gets smaller when you convert mmHg to kPa and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About mmHg and kPa
Millimeter of mercury (mmHg): Millimetre of mercury, about 133.322 pascals. Kilopascal (kPa): 1,000 pascals.
Where mmHg to kPa conversions are used
Tyre pressure is shown in psi, bar or kPa, depending on the vehicle and country. Weather maps use hectopascals or millibars, and altitude and diving use bar or atmospheres.
How to calculate mmHg to kPa step by step
- Enter the value in mmHg (the starting unit).
- Multiply by 0.1333224, because 1 mmHg = 0.1333224 kPa.
- The product is the value in kPa. To go back, divide by 0.1333224 or multiply by 7.500616.
Popular pressure conversions
How to read your mmHg to kPa result
Quick estimate: multiply by about 0.133 to get kPa from mmHg; this is within 0.3% of the exact factor. One standard atmosphere is exactly 101,325 Pa, and one bar is exactly 100,000 Pa.
| MMHG | KPA |
|---|---|
| 1 | 0.1333224 |
| 2 | 0.2666448 |
| 5 | 0.6666119 |
| 10 | 1.333224 |
| 20 | 2.666448 |
| 50 | 6.666119 |
| 100 | 13.33224 |
| 1,000 | 133.3224 |
kPa to mmHg: quick table
| KPA | MMHG |
|---|---|
| 1 | 7.500616 |
| 5 | 37.50308 |
| 10 | 75.00616 |
| 25 | 187.5154 |
| 50 | 375.0308 |
| 100 | 750.0616 |
| 250 | 1,875.154 |
| 500 | 3,750.308 |
Common mistakes when calculating mmHg to kPa
- Treating gauge pressure and absolute pressure as the same: absolute pressure equals gauge plus atmospheric pressure.
- Dividing when you should multiply: from mmHg to kPa multiply by 0.1333224; from kPa to mmHg divide by 0.1333224.
mmHg to kPa FAQ
How many kPa are in 1 mmHg?
1 mmHg equals 0.1333224 kPa.
How many mmHg are in 1 kPa?
1 kPa equals 7.500616 mmHg.
Is 1 mmHg = 0.1333224 kPa an exact conversion?
The factor is shown rounded to 7 significant figures (0.1333224). The calculator above uses more digits.
What is a kilopascal (kPa)?
1,000 pascals.
How can I estimate mmHg to kPa in my head?
Quick estimate: multiply by about 0.133 to get kPa from mmHg; this is within 0.3% of the exact factor.
What is 12 mmHg in kPa?
12 mmHg = 1.599869 kPa (since 12 × 0.1333224).
What is 60 mmHg in kPa?
60 mmHg = 7.999343 kPa (since 60 × 0.1333224).
What is 250 mmHg in kPa?
250 mmHg = 33.3306 kPa (since 250 × 0.1333224).
How many decimals should I keep when converting mmHg to kPa?
Match the precision of your original measurement. For example, 1.333224 kPa rounds to 1.33 kPa at 3 significant figures; keep more digits only for engineering or scientific work.
More in Pressure converters
- Pascals to Atmospheres Converter
- kPa to PSI Converter
- Pascals to Bar Converter
- kPa to Pascals Converter
- Pascals to kPa Converter
- Pascals to mmHg Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the SI derived units