Convert Millimeters of Mercury to Gigapascals (mmHg to GPa)
1 millimeter of mercury (mmHg) = 1.333223874 × 10⁻⁷ gigapascals (GPa). 1 GPa = 7500615.758 mmHg. Example: 15 mmHg = 15 × 1.333223874 × 10⁻⁷ = 0.000001999835811 GPa.
Also searched as millimeters of mercury to GPa, millimeters of mercury in GPa, millimeters of mercury into gigapascals, mmHg to GPa, mmHg in gigapascals, mmHg into gigapascal, millimeter of mercury to gigapascal, mmHg to gigapascals converter, millimetres of mercury to gigapascals and how many gigapascals in a millimeter of mercury.
1 mmHg = 1.333223874e-7 GPa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millimeter of mercury to gigapascal converter to paste a column from Excel.
How to Convert Millimeter of Mercury to Gigapascal
- 1 mmHg = 1.333223874 × 10⁻⁷ GPa
- 1 GPa = 7500615.758 mmHg
- Example: convert 15 mmHg to GPa: 15 mmHg = 15 × 1.333223874 × 10⁻⁷ GPa = 0.000001999835811 GPa
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
GPa = mmHg × 1.33322387415 × 10⁻⁷
or GPa = mmHg ÷ 7500615.758457
Derivation from SI units:
- 1 mmHg = 13 595.1 kg/m³ × 9.80665 m/s² × 0.001 m = 133.322387415 Pa
- 1 GPa = 10⁹ Pa = 1000 MPa = 1 kN/mm²
- 1 mmHg = 133.322387415 Pa ÷ 1000000000 Pa per GPa = 1.33322387415 × 10⁻⁷ GPa
Both units are defined exactly, so the factor is exact. Millimeter of Mercury definition: millimeter of mercury; Gigapascal definition: gigapascal.
Worked examples
- A reading of 80 mmHg converts to 0.00001066579099 GPa.
80 mmHg × 1.333223874 × 10⁻⁷ = 0.00001066579099 GPa - A value of 160 mmHg is 0.00002133158199 GPa.
160 mmHg × 1.333223874 × 10⁻⁷ = 0.00002133158199 GPa
Millimeter of Mercury to Gigapascal conversion table
| Millimeters of Mercury (mmHg) | Gigapascals (GPa) |
|---|---|
| 1 mmHg | 1.333223874 × 10⁻⁷ GPa |
| 5 mmHg | 6.666119371 × 10⁻⁷ GPa |
| 10 mmHg | 0.000001333223874 GPa |
| 20 mmHg | 0.000002666447748 GPa |
| 40 mmHg | 0.000005332895497 GPa |
| 60 mmHg | 0.000007999343245 GPa |
| 70 mmHg | 0.000009332567119 GPa |
| 80 mmHg | 0.00001066579099 GPa |
| 90 mmHg | 0.00001199901487 GPa |
| 100 mmHg | 0.00001333223874 GPa |
| 110 mmHg | 0.00001466546262 GPa |
| 120 mmHg | 0.00001599868649 GPa |
| 130 mmHg | 0.00001733191036 GPa |
| 140 mmHg | 0.00001866513424 GPa |
| 160 mmHg | 0.00002133158199 GPa |
| 180 mmHg | 0.00002399802973 GPa |
| 200 mmHg | 0.00002666447748 GPa |
| 300 mmHg | 0.00003999671622 GPa |
| 500 mmHg | 0.00006666119371 GPa |
| 750 mmHg | 0.00009999179056 GPa |
| 760 mmHg | 0.0001013250144 GPa |
Where it's used
Millimeters of Mercury are used for blood pressure (e.g. 120/80 mmHg), while gigapascals appear in young's modulus and shear modulus of metals, ceramics and composites. 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 gigapascal | 1.333223874 × 10⁻⁷ GPa |
| millimeter of mercury to pascal | 133.3223874 Pa |
| millimeter of mercury to kilopascal | 0.1333223874 kPa |
| millimeter of mercury to ksi | 0.00001933677746 ksi |
| 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 |
Show 12 more units
| millimeter of mercury to atmosphere | 0.001315789661 atm |
|---|---|
| millimeter of mercury to megapascal | 0.0001333223874 MPa |
| 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 gigapascals are in 1 millimeter of mercury?
1 mmHg = 1.333223874 × 10⁻⁷ GPa.
How do I convert millimeters of mercury to gigapascals?
Multiply the value in mmHg by 1.333223874 × 10⁻⁷, or divide it by 7500615.758. For example, 15 mmHg × 1.333223874 × 10⁻⁷ = 0.000001999835811 GPa.
Is the mmHg to GPa 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)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
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 Gigapascals (mmHg to GPa). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/millimeter-of-mercury-to-gigapascal/
IEEE
Scientific Converters, "Convert Millimeters of Mercury to Gigapascals (mmHg to GPa)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/millimeter-of-mercury-to-gigapascal/