Convert Millimeters of Mercury to ksi (mmHg to ksi)
1 millimeter of mercury (mmHg) = 0.00001933677746 ksi. 1 ksi = 51714.9252 mmHg. Example: 15 mmHg = 15 × 0.00001933677746 = 0.0002900516619 ksi.
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1 mmHg = 0.00001933677746 ksi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millimeter of mercury to ksi converter to paste a column from Excel.
How to Convert Millimeter of Mercury to ksi
- 1 mmHg = 0.00001933677746 ksi
- 1 ksi = 51714.9252 mmHg
- Example: convert 15 mmHg to ksi: 15 mmHg = 15 × 0.00001933677746 ksi = 0.0002900516619 ksi
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
ksi = mmHg × 0.00001933677745946
or ksi = mmHg ÷ 51714.92520387
Derivation from SI units:
- 1 mmHg = 13 595.1 kg/m³ × 9.80665 m/s² × 0.001 m = 133.322387415 Pa
- 1 ksi = 1000 psi = 1 kip/in² = 6.894757293168 MPa
- 1 mmHg = 133.322387415 Pa ÷ 6894757.293168 Pa per ksi = 0.00001933677745946 ksi
Both units are defined exactly, so the factor is exact. Millimeter of Mercury definition: millimeter of mercury; ksi definition: ksi.
Worked examples
- A reading of 80 mmHg converts to 0.001546942197 ksi.
80 mmHg × 0.00001933677746 = 0.001546942197 ksi - A value of 160 mmHg is 0.003093884394 ksi.
160 mmHg × 0.00001933677746 = 0.003093884394 ksi
Millimeter of Mercury to ksi conversion table
| Millimeters of Mercury (mmHg) | ksi |
|---|---|
| 1 mmHg | 0.00001933677746 ksi |
| 5 mmHg | 0.0000966838873 ksi |
| 10 mmHg | 0.0001933677746 ksi |
| 20 mmHg | 0.0003867355492 ksi |
| 40 mmHg | 0.0007734710984 ksi |
| 60 mmHg | 0.001160206648 ksi |
| 70 mmHg | 0.001353574422 ksi |
| 80 mmHg | 0.001546942197 ksi |
| 90 mmHg | 0.001740309971 ksi |
| 100 mmHg | 0.001933677746 ksi |
| 110 mmHg | 0.002127045521 ksi |
| 120 mmHg | 0.002320413295 ksi |
| 130 mmHg | 0.00251378107 ksi |
| 140 mmHg | 0.002707148844 ksi |
| 160 mmHg | 0.003093884394 ksi |
| 180 mmHg | 0.003480619943 ksi |
| 200 mmHg | 0.003867355492 ksi |
| 300 mmHg | 0.005801033238 ksi |
| 500 mmHg | 0.00966838873 ksi |
| 750 mmHg | 0.01450258309 ksi |
| 760 mmHg | 0.01469595087 ksi |
Where it's used
Millimeters of Mercury are used for blood pressure (e.g. 120/80 mmHg), while ksi appear in yield and tensile strength in ASTM and ASME material specifications. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Millimeter of Mercury to other pressure units
| Conversion | 1 mmHg equals |
|---|---|
| millimeter of mercury to ksi | 0.00001933677746 ksi |
| millimeter of mercury to pascal | 133.3223874 Pa |
| millimeter of mercury to kilopascal | 0.1333223874 kPa |
| millimeter of mercury to kilogram-force per square centimetre | 0.00135951 kgf/cm² |
| millimeter of mercury to psi | 0.01933677746 psi |
| millimeter of mercury to bar | 0.001333223874 bar |
| millimeter of mercury to inch of water | 0.5352401575 inH₂O |
| millimeter of mercury to atmosphere | 0.001315789661 atm |
Show 12 more units
| millimeter of mercury to megapascal | 0.0001333223874 MPa |
|---|---|
| millimeter of mercury to gigapascal | 1.333223874 × 10⁻⁷ GPa |
| millimeter of mercury to newton per square millimetre | 0.0001333223874 N/mm² |
| millimeter of mercury to kilogram-force per square millimetre | 0.0000135951 kgf/mm² |
| millimeter of mercury to millibar | 1.333223874 mbar |
| millimeter of mercury to torr | 1.000000142 Torr |
| millimeter of mercury to millimeter of water | 13.5951 mmH₂O |
| millimeter of mercury to centimeter of water | 1.35951 cmH₂O |
| millimeter of mercury to inch of mercury | 0.03937007874 inHg |
| millimeter of mercury to decibar | 0.01333223874 dbar |
| millimeter of mercury to inch of water (60 °F) | 0.5357755482 inH₂O (60 °F) |
| millimeter of mercury to barye | 1333.223874 Ba |
Frequently asked questions
How many ksi are in 1 millimeter of mercury?
1 mmHg = 0.00001933677746 ksi.
How do I convert millimeters of mercury to ksi?
Multiply the value in mmHg by 0.00001933677746, or divide it by 51714.9252. For example, 15 mmHg × 0.00001933677746 = 0.0002900516619 ksi.
Is the mmHg to ksi 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
- 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)".
- 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, "kip per square inch (ksi)".
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 Millimeters of Mercury to ksi (mmHg to ksi). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/millimeter-of-mercury-to-ksi/
IEEE
Scientific Converters, "Convert Millimeters of Mercury to ksi (mmHg to ksi)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/millimeter-of-mercury-to-ksi/