Convert ksi to Millimeters of Mercury (ksi to mmHg)
1 ksi = 51714.9252 millimeters of mercury (mmHg). 1 mmHg = 0.00001933677746 ksi. Example: 15 ksi = 15 × 51714.9252 = 775723.8781 mmHg.
Also searched as ksi to mmHg, ksi in mmHg, ksi into millimeters of mercury, ksi in millimeters of mercury, ksi into millimeter of mercury, ksi to millimeter of mercury, ksi to millimeters of mercury converter, ksi to millimetres of mercury and how many millimeters of mercury in a ksi.
1 ksi = 51714.9252 mmHg
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk ksi to millimeter of mercury converter to paste a column from Excel.
How to Convert ksi to Millimeter of Mercury
- 1 ksi = 51714.9252 mmHg
- 1 mmHg = 0.00001933677746 ksi
- Example: convert 15 ksi to mmHg: 15 ksi = 15 × 51714.9252 mmHg = 775723.8781 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 = ksi × 51714.92520387
Derivation from SI units:
- 1 ksi = 1000 psi = 1 kip/in² = 6.894757293168 MPa
- 1 mmHg = 13 595.1 kg/m³ × 9.80665 m/s² × 0.001 m = 133.322387415 Pa
- 1 ksi = 6894757.293168 Pa ÷ 133.322387415 Pa per mmHg = 51714.92520387 mmHg
Both units are defined exactly, so the factor is exact. ksi definition: ksi; Millimeter of Mercury definition: millimeter of mercury.
Worked examples
- A reading of 20 ksi converts to 1034298.504 mmHg.
20 ksi × 51714.9252 = 1034298.504 mmHg - A value of 65 ksi is 3361470.138 mmHg.
65 ksi × 51714.9252 = 3361470.138 mmHg
ksi to Millimeter of Mercury conversion table
| ksi | Millimeters of Mercury (mmHg) |
|---|---|
| 1 ksi | 51714.9252 mmHg |
| 3 ksi | 155144.7756 mmHg |
| 4 ksi | 206859.7008 mmHg |
| 5 ksi | 258574.626 mmHg |
| 10 ksi | 517149.252 mmHg |
| 20 ksi | 1034298.504 mmHg |
| 30 ksi | 1551447.756 mmHg |
| 36 ksi | 1861737.307 mmHg |
| 50 ksi | 2585746.26 mmHg |
| 60 ksi | 3102895.512 mmHg |
| 65 ksi | 3361470.138 mmHg |
| 70 ksi | 3620044.764 mmHg |
| 100 ksi | 5171492.52 mmHg |
| 150 ksi | 7757238.781 mmHg |
| 200 ksi | 10342985.04 mmHg |
Where it's used
ksi are used for yield and tensile strength in ASTM and ASME material specifications, while millimeters of mercury appear in blood pressure (e.g. 120/80 mmHg). Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
ksi to other pressure units
| Conversion | 1 ksi equals |
|---|---|
| ksi to millimeter of mercury | 51714.9252 mmHg |
| ksi to pascal | 6894757.293 Pa |
| ksi to kilopascal | 6894.757293 kPa |
| ksi to kilogram-force per square centimetre | 70.30695796 kgf/cm² |
| ksi to psi | 1000 psi |
| ksi to bar | 68.94757293 bar |
| ksi to inch of water | 27679.90471 inH₂O |
| ksi to atmosphere | 68.04596391 atm |
Show 12 more units
| ksi to megapascal | 6.894757293 MPa |
|---|---|
| ksi to gigapascal | 0.006894757293 GPa |
| ksi to newton per square millimetre | 6.894757293 N/mm² |
| ksi to kilogram-force per square millimetre | 0.7030695796 kgf/mm² |
| ksi to millibar | 68947.57293 mbar |
| ksi to torr | 51714.93257 Torr |
| ksi to millimeter of water | 703069.5796 mmH₂O |
| ksi to centimeter of water | 70306.95796 cmH₂O |
| ksi to inch of mercury | 2036.020677 inHg |
| ksi to decibar | 689.4757293 dbar |
| ksi to inch of water (60 °F) | 27707.5924 inH₂O (60 °F) |
| ksi to barye | 68947572.93 Ba |
Frequently asked questions
How many millimeters of mercury are in 1 ksi?
1 ksi = 51714.9252 mmHg.
How do I convert ksi to millimeters of mercury?
Multiply the value in ksi by 51714.9252. For example, 15 ksi × 51714.9252 = 775723.8781 mmHg.
Is the ksi 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
- 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)".
- 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 ksi to Millimeters of Mercury (ksi to mmHg). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/ksi-to-millimeter-of-mercury/
IEEE
Scientific Converters, "Convert ksi to Millimeters of Mercury (ksi to mmHg)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/ksi-to-millimeter-of-mercury/