mmHg to Kilopascals Converter
mmHg → kPa · 🔬 Pressure
1 mmHg = 0.133322 Kilopascals
How to convert mmHg to Kilopascals
To convert mmHg to Kilopascals, multiply the value in mmHg by 0.133322. For example, 5 mmHg = 0.66661 kPa.
Converting mmHg (mmHg) to Kilopascals (kPa) is a frequent need, and the exact relationship is 1 mmHg = 0.133322 kPa. Whether you're working on a project, checking a specification, or just curious, the calculator above gives you the answer instantly for any value you enter.
Pressure conversions are used in weather forecasting, engineering, diving, automotive maintenance, and industrial processes. Different fields favor different units, making conversion a regular necessity.
Understanding mmHg and Kilopascals
The pascal is the SI unit, but it's small, so kilopascals and bars are more practical for everyday use. PSI (pounds per square inch) dominates in US engineering and tire pressures, while atmospheres provide an intuitive reference point — 1 atm is roughly the air pressure at sea level. Weather reports use hectopascals or millibars, which are numerically identical.
How accurate is this conversion?
Pressure conversions are based on fixed physical definitions. One standard atmosphere equals exactly 101,325 pascals, and 1 bar equals exactly 100,000 pascals, so all conversions here are precise.
All conversion factors on ClearUnits are based on internationally recognised standards (the International System of Units, SI, and official definitions). Factors are reviewed for accuracy and the calculator uses full-precision values, rounding only the displayed result.
Quick reference: common mmHg to Kilopascals values
The most frequently searched conversions are 1 mmHg = 0.133322 Kilopascals, 5 mmHg = 0.66661 Kilopascals, 10 mmHg = 1.33322 Kilopascals, and 100 mmHg = 13.3322 Kilopascals. The full table further down covers every common value, and the calculator handles any number you need in between.
Pro tip: For tire pressure, most vehicles specify PSI in the US and bar or kPa elsewhere. As a rule of thumb, 1 bar ≈ 14.5 PSI, so a typical 2.2 bar tire pressure is about 32 PSI.
mmHg to Kilopascals — Conversion Table
| mmHg (mmHg) | Kilopascals (kPa) |
|---|---|
| 0.1 mmHg | 0.0133322 kPa |
| 0.25 mmHg | 0.0333305 kPa |
| 0.5 mmHg | 0.066661 kPa |
| 1 mmHg | 0.133322 kPa |
| 2 mmHg | 0.266644 kPa |
| 5 mmHg | 0.66661 kPa |
| 10 mmHg | 1.33322 kPa |
| 25 mmHg | 3.33305 kPa |
| 50 mmHg | 6.6661 kPa |
| 100 mmHg | 13.3322 kPa |
| 250 mmHg | 33.3305 kPa |
| 500 mmHg | 66.661 kPa |
| 1000 mmHg | 133.322 kPa |