Convert Kilopascals to Millimeters of Mercury
1 kilopascal (kPa) equals 7.500615758 millimeters of mercury (mmHg).
1 kPa = 7.500615758 mmHg
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilopascal to millimeter of mercury converter to paste a column from Excel.
How to Convert Kilopascal to Millimeter of Mercury
- 1 kPa = 7.500615758 mmHg
- 1 mmHg = 0.1333223874 kPa
- Example: convert 15 kPa to mmHg: 15 kPa = 15 × 7.500615758 mmHg = 112.5092364 mmHg
Reference conditions. mmHg: Conventional mercury column: ρ = 13 595.1 kg/m³ and gₙ = 9.80665 m/s² (≈ mercury at 0 °C / 32 °F).
Formula
mmHg = kPa × 7.500615758457
Derivation from SI units:
- 1 kPa = 10³ Pa
- 1 mmHg = 13 595.1 kg/m³ × 9.80665 m/s² × 0.001 m = 133.322387415 Pa
- 1 kPa = 1000 Pa ÷ 133.322387415 Pa per mmHg = 7.500615758457 mmHg
Both units are defined exactly, so the factor is exact. Kilopascal definition: kilopascal; Millimeter of Mercury definition: millimeter of mercury.
Worked examples
- A blood pressure of 16 kPa is 120.0098521 mmHg.
16 kPa × 7.500615758 = 120.0098521 mmHg - The standard atmosphere, 101.325 kPa, is 759.9998917 mmHg.
101.325 kPa × 7.500615758 = 759.9998917 mmHg
Kilopascal to Millimeter of Mercury conversion table
| Kilopascals (kPa) | Millimeters of Mercury (mmHg) |
|---|---|
| 0.1 kPa | 0.7500615758 mmHg |
| 0.25 kPa | 1.87515394 mmHg |
| 0.5 kPa | 3.750307879 mmHg |
| 1 kPa | 7.500615758 mmHg |
| 2 kPa | 15.00123152 mmHg |
| 2.5 kPa | 18.7515394 mmHg |
| 5 kPa | 37.50307879 mmHg |
| 10 kPa | 75.00615758 mmHg |
| 20 kPa | 150.0123152 mmHg |
| 50 kPa | 375.0307879 mmHg |
| 100 kPa | 750.0615758 mmHg |
| 101.325 kPa | 759.9998917 mmHg |
| 150 kPa | 1125.092364 mmHg |
| 200 kPa | 1500.123152 mmHg |
| 220 kPa | 1650.135467 mmHg |
| 250 kPa | 1875.15394 mmHg |
| 300 kPa | 2250.184728 mmHg |
| 350 kPa | 2625.215515 mmHg |
| 400 kPa | 3000.246303 mmHg |
| 500 kPa | 3750.307879 mmHg |
| 600 kPa | 4500.369455 mmHg |
| 700 kPa | 5250.431031 mmHg |
| 800 kPa | 6000.492607 mmHg |
| 1000 kPa | 7500.615758 mmHg |
| 2000 kPa | 15001.23152 mmHg |
Where it's used
Some medical devices and journals report pressures in kPa, while clinicians work in mmHg. One kilopascal is about 7.5 mmHg.
Kilopascal to other pressure units
| Conversion | 1 kPa equals |
|---|---|
| kilopascal to pascal | 1000 Pa |
| kilopascal to megapascal | 0.001 MPa |
| kilopascal to psi | 0.1450377377 psi |
| kilopascal to bar | 0.01 bar |
| kilopascal to millibar | 10 mbar |
| kilopascal to decibar | 0.1 dbar |
| kilopascal to torr | 7.500616827 Torr |
| kilopascal to millimeter of mercury | 7.500615758 mmHg |
| kilopascal to millimeter of water | 101.9716213 mmH₂O |
| kilopascal to centimeter of water | 10.19716213 cmH₂O |
| kilopascal to inch of water | 4.01463076 inH₂O |
| kilopascal to inch of water (60 °F) | 4.01864652 inH₂O (60 °F) |
| kilopascal to inch of mercury | 0.295299833 inHg |
| kilopascal to atmosphere | 0.009869232667 atm |
| kilopascal to barye | 10000 Ba |
Frequently asked questions
How many mmHg is 1 kPa?
1 kPa = 7.500615758 mmHg.
How many millimeters of mercury are in 1 kilopascal?
1 kPa = 7.500615758 mmHg.
How do I convert kilopascals to millimeters of mercury?
Multiply the value in kPa by 7.500615758. For example, 15 kPa × 7.500615758 = 112.5092364 mmHg.
Is the kPa to mmHg conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "millimeter of mercury, conventional (mmHg)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilopascals to Millimeters of Mercury. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/kilopascal-to-millimeter-of-mercury/
IEEE
Scientific Converters, "Convert Kilopascals to Millimeters of Mercury," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/kilopascal-to-millimeter-of-mercury/