Millimeters of Mercury to Pounds per Square Inch (mmHg to psi) Converter
1 millimeter of mercury (mmHg) = 0.0193368 pounds per square inch (psi). To convert millimeters of mercury to pounds per square inch, multiply by 0.0193368: 25 mmHg × 0.0193368 = 0.483419 psi. Also searched as millimetres of mercury to pounds per square inch.
Quick facts
- 1 mmHg = 0.0193368 psi
- 1 psi = 51.7149 mmHg
- Formula: psi = mmHg × 0.0193368
- Quick estimate: multiply by about 0.019
How to convert millimeters of mercury to pounds per square inch
- Take the value in millimeters of mercury.
- Multiply it by 0.0193368 (the number of pounds per square inch in one millimeter of mercury).
- Round the result to the precision you need.
Worked example: 25 mmHg × 0.0193368 = 0.483419 psi.
To convert pounds per square inch back to millimeters of mercury, multiply by 51.7149, or divide by 0.0193368.
Source: NIST SP 811 (2008), Appendix B.
Millimeters of Mercury to Pounds per Square Inch conversion table
| Millimeters of Mercury [mmHg] | Pounds per Square Inch [psi] |
|---|---|
| 0.01 mmHg | 0.0001933678 psi |
| 0.1 mmHg | 0.0019336777 psi |
| 1 mmHg | 0.0193367775 psi |
| 2 mmHg | 0.0386735549 psi |
| 3 mmHg | 0.0580103324 psi |
| 5 mmHg | 0.0966838873 psi |
| 10 mmHg | 0.1933677746 psi |
| 20 mmHg | 0.3867355492 psi |
| 50 mmHg | 0.966838873 psi |
| 100 mmHg | 1.9336777459 psi |
| 1000 mmHg | 19.3367774595 psi |
mmHg to psi chart from 1 to 100
- 1 mmHg 0.0193368 psi
- 2 mmHg 0.0386736 psi
- 3 mmHg 0.0580103 psi
- 4 mmHg 0.0773471 psi
- 5 mmHg 0.0966839 psi
- 6 mmHg 0.116021 psi
- 7 mmHg 0.135357 psi
- 8 mmHg 0.154694 psi
- 9 mmHg 0.174031 psi
- 10 mmHg 0.193368 psi
- 11 mmHg 0.212705 psi
- 12 mmHg 0.232041 psi
- 13 mmHg 0.251378 psi
- 14 mmHg 0.270715 psi
- 15 mmHg 0.290052 psi
- 16 mmHg 0.309388 psi
- 17 mmHg 0.328725 psi
- 18 mmHg 0.348062 psi
- 19 mmHg 0.367399 psi
- 20 mmHg 0.386736 psi
- 25 mmHg 0.483419 psi
- 30 mmHg 0.580103 psi
- 35 mmHg 0.676787 psi
- 40 mmHg 0.773471 psi
- 45 mmHg 0.870155 psi
- 50 mmHg 0.966839 psi
- 55 mmHg 1.06352 psi
- 60 mmHg 1.16021 psi
- 65 mmHg 1.25689 psi
- 70 mmHg 1.35357 psi
- 75 mmHg 1.45026 psi
- 80 mmHg 1.54694 psi
- 85 mmHg 1.64363 psi
- 90 mmHg 1.74031 psi
- 95 mmHg 1.83699 psi
- 100 mmHg 1.93368 psi
Pounds per Square Inch to Millimeters of Mercury conversion table
| Pounds per Square Inch [psi] | Millimeters of Mercury [mmHg] |
|---|---|
| 0.01 psi | 0.517149252 mmHg |
| 0.1 psi | 5.1714925204 mmHg |
| 1 psi | 51.7149252039 mmHg |
| 2 psi | 103.4298504077 mmHg |
| 3 psi | 155.1447756116 mmHg |
| 5 psi | 258.5746260194 mmHg |
| 10 psi | 517.1492520387 mmHg |
| 20 psi | 1034.2985040774 mmHg |
| 50 psi | 2585.7462601936 mmHg |
| 100 psi | 5171.4925203872 mmHg |
| 1000 psi | 51714.9252038719 mmHg |
Millimeters of Mercury vs Pounds per Square Inch
| Millimeter of Mercury | Pounds per Square Inch | |
|---|---|---|
| Symbol | mmHg | psi |
| Equals | 1 mmHg = 0.0193368 psi | 1 psi = 51.7149 mmHg |
What is a millimeter of mercury?
The pressure exerted by a 1-millimeter column of mercury. Used for blood pressure and barometric readings.
What is a pounds per square inch?
Force in pounds applied over one square inch. Used in the US for tire pressure and hydraulic systems.
Frequently asked questions
How many pounds per square inch are in a millimeter of mercury?
There are 0.0193368 pounds per square inch in 1 millimeter of mercury (1 mmHg = 0.0193367775 psi).
How many millimeters of mercury are in a pounds per square inch?
There are 51.7149 millimeters of mercury in 1 pounds per square inch (1 psi = 51.7149252039 mmHg).
How do I convert millimeters of mercury to pounds per square inch?
Multiply the number of millimeters of mercury by 0.0193368. For example, 10 mmHg × 0.0193368 = 0.193368 psi. To convert back, multiply by 51.7149.
What is 10 mmHg in pounds per square inch?
10 mmHg = 0.193368 psi.
What is 100 mmHg in pounds per square inch?
100 mmHg = 1.93368 psi.
Is the conversion exact?
Yes. The factor comes from the official definitions of both units (NIST SP 811 (2008), Appendix B). Results are shown to up to 10 decimal places; round them to suit your purpose.
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