Convert Millimeters of Mercury to Kilopascals
Instantly convert Millimeters of Mercury (mmHg) to Kilopascals (kPa) with our free online calculator.
Formula: mmHg to kPa — multiply by 0.133322
Reference Table
| Millimeters of Mercury (mmHg) | Kilopascals (kPa) |
|---|---|
| 1 | 0.133322 |
| 5 | 0.66661 |
| 10 | 1.33322 |
| 25 | 3.33305 |
| 50 | 6.6661 |
| 100 | 13.3322 |
How to Convert Millimeters of Mercury to Kilopascals
Formula
To convert Millimeters of Mercury (mmHg) to Kilopascals (kPa): multiply by 0.133322
Step-by-Step
- Start with your value in Millimeters of Mercury (mmHg).
- Multiply by 0.133322 to perform the conversion.
- The result is your value expressed in Kilopascals (kPa).
Conversion Factor
1 mmHg = 0.133322 kPa
Reverse Factor
1 kPa = 7.50064 mmHg
Worked Example
Convert 25 Millimeters of Mercury to Kilopascals: 25 mmHg = 3.33305 kPa
About Millimeters of Mercury (mmHg)
A unit of pressure historically defined as the pressure exerted by a 1-millimeter column of mercury at standard gravity. Millimeters of mercury are the default unit for clinical blood-pressure readings worldwide ("120 over 80") and intraocular pressure in ophthalmology. The mmHg is numerically almost identical to the torr (1 mmHg ≈ 1.0000007 torr). Barometric atmospheric pressure was historically quoted in mmHg as well — 760 mmHg = 1 atm.
About Kilopascal (kPa)
A metric unit of pressure equal to 1,000 pascals. Kilopascals are the everyday SI pressure unit outside the US: tire pressure in Europe is quoted in kPa (about 220–250 kPa for a passenger car), building HVAC is specified in kPa, and scientific gauge pressure is almost always kPa. Weather forecasters quote surface atmospheric pressure in hectopascals (hPa) — 1 kPa = 10 hPa. Converting kPa to psi (divide by ~6.895) is one of the most common international pressure conversions.
Quick Facts
- 1 Millimeters of Mercury equals 0.133322 Kilopascals
- 1 Kilopascal equals 7.50064 Millimeters of Mercury
- Millimeters of Mercury is a unit of pressure
- Kilopascal is a unit of pressure
- This conversion is commonly used in tire inflation, weather reporting, scuba diving, and engineering
- The Millimeters of Mercury belongs to the metric system
Common Millimeters of Mercury to Kilopascal Conversions
| Millimeters of Mercury (mmHg) | Kilopascals (kPa) |
|---|---|
| 0.1 | 0.0133322 |
| 0.5 | 0.066661 |
| 1 | 0.133322 |
| 2 | 0.266644 |
| 5 | 0.66661 |
| 10 | 1.33322 |
| 14.696 | 1.9593 |
| 15 | 1.99983 |
| 20 | 2.66644 |
| 25 | 3.33305 |
| 50 | 6.6661 |
| 100 | 13.3322 |
| 150 | 19.9983 |
| 200 | 26.6644 |
| 500 | 66.661 |
| 1000 | 133.322 |
Understanding Millimeters of Mercury
The Millimeters of Mercury (symbol: mmHg) is a unit of pressure. A unit of pressure historically defined as the pressure exerted by a 1-millimeter column of mercury at standard gravity. Millimeters of mercury are the default unit for clinical blood-pressure readings worldwide ("120 over 80") and intraocular pressure in ophthalmology. The mmHg is numerically almost identical to the torr (1 mmHg ≈ 1.0000007 torr). Barometric atmospheric pressure was historically quoted in mmHg as well — 760 mmHg = 1 atm.
It belongs to the metric measurement system.
Millimeters of Mercury are commonly used in tire inflation, weather reporting, scuba diving, and engineering.
Understanding Kilopascals
The Kilopascal (symbol: kPa) is a unit of pressure. A metric unit of pressure equal to 1,000 pascals. Kilopascals are the everyday SI pressure unit outside the US: tire pressure in Europe is quoted in kPa (about 220–250 kPa for a passenger car), building HVAC is specified in kPa, and scientific gauge pressure is almost always kPa. Weather forecasters quote surface atmospheric pressure in hectopascals (hPa) — 1 kPa = 10 hPa. Converting kPa to psi (divide by ~6.895) is one of the most common international pressure conversions.
It belongs to the metric measurement system.
Kilopascals are commonly used in tire inflation, weather reporting, scuba diving, and engineering.
Why Convert Millimeters of Mercury to Kilopascals?
Engineers, mechanics, and scientists frequently need to convert pressure between Millimeters of Mercury and Kilopascals when working with different measurement standards. Tire pressure, blood pressure readings, weather barometric measurements, and industrial process specifications may all use different pressure units depending on the region or discipline. Reliable conversion prevents equipment misuse and ensures safety.
Frequently Asked Questions
How do I convert Millimeters of Mercury to Kilopascals?
A unit of pressure historically defined as the pressure exerted by a 1-millimeter column of mercury at standard gravity. To convert Millimeters of Mercury to Kilopascals, multiply by 0.133322. For example, 25 mmHg equals 3.33305 kPa.
How many Kilopascals are in 1 Millimeters of Mercury?
There are 0.133322 Kilopascals in 1 Millimeters of Mercury.
How many Millimeters of Mercury are in 1 Kilopascal?
There are 7.50064 Millimeters of Mercury in 1 Kilopascal.
What is the formula for Millimeters of Mercury to Kilopascal conversion?
The formula is: multiply by 0.133322. This means 1 mmHg = 0.133322 kPa.
Is a Millimeters of Mercury bigger than a Kilopascal?
Yes. One Millimeters of Mercury is larger than one Kilopascal because 1 mmHg equals 0.133322 kPa, which is less than 1.
When do you need to convert between Millimeters of Mercury and Kilopascals?
A metric unit of pressure equal to 1,000 pascals. Millimeters of Mercury and Kilopascal are both pressure units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.