Pounds per Square Inch to Millimeters of Mercury (psi to mmHg) Converter
1 pounds per square inch (psi) = 51.7149 millimeters of mercury (mmHg). To convert pounds per square inch to millimeters of mercury, multiply by 51.7149: 32 psi × 51.7149 = 1,654.88 mmHg. Also searched as pounds per square inch to millimetres of mercury.
Quick facts
- 1 psi = 51.7149 mmHg
- 1 mmHg = 0.0193368 psi
- Formula: mmHg = psi × 51.7149
- Quick estimate: multiply by about 52
How to convert pounds per square inch to millimeters of mercury
- Take the value in pounds per square inch.
- Multiply it by 51.7149 (the number of millimeters of mercury in one pounds per square inch).
- Round the result to the precision you need.
Worked example (car tyre pressure): 32 psi × 51.7149 = 1654.88 mmHg.
To convert millimeters of mercury back to pounds per square inch, multiply by 0.0193368, or divide by 51.7149.
Source: NIST SP 811 (2008), Appendix B.
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 |
psi to mmHg chart from 1 to 100
- 1 psi 51.7149 mmHg
- 2 psi 103.43 mmHg
- 3 psi 155.145 mmHg
- 4 psi 206.86 mmHg
- 5 psi 258.575 mmHg
- 6 psi 310.29 mmHg
- 7 psi 362.004 mmHg
- 8 psi 413.719 mmHg
- 9 psi 465.434 mmHg
- 10 psi 517.149 mmHg
- 11 psi 568.864 mmHg
- 12 psi 620.579 mmHg
- 13 psi 672.294 mmHg
- 14 psi 724.009 mmHg
- 15 psi 775.724 mmHg
- 16 psi 827.439 mmHg
- 17 psi 879.154 mmHg
- 18 psi 930.869 mmHg
- 19 psi 982.584 mmHg
- 20 psi 1034.3 mmHg
- 25 psi 1292.87 mmHg
- 30 psi 1551.45 mmHg
- 35 psi 1810.02 mmHg
- 40 psi 2068.6 mmHg
- 45 psi 2327.17 mmHg
- 50 psi 2585.75 mmHg
- 55 psi 2844.32 mmHg
- 60 psi 3102.9 mmHg
- 65 psi 3361.47 mmHg
- 70 psi 3620.04 mmHg
- 75 psi 3878.62 mmHg
- 80 psi 4137.19 mmHg
- 85 psi 4395.77 mmHg
- 90 psi 4654.34 mmHg
- 95 psi 4912.92 mmHg
- 100 psi 5171.49 mmHg
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 |
Pounds per Square Inch vs Millimeters of Mercury
| Pounds per Square Inch | Millimeter of Mercury | |
|---|---|---|
| Symbol | psi | mmHg |
| Equals | 1 psi = 51.7149 mmHg | 1 mmHg = 0.0193368 psi |
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.
What is a millimeter of mercury?
The pressure exerted by a 1-millimeter column of mercury. Used for blood pressure and barometric readings.
Frequently asked questions
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 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 do I convert pounds per square inch to millimeters of mercury?
Multiply the number of pounds per square inch by 51.7149. For example, 10 psi × 51.7149 = 517.149 mmHg. To convert back, multiply by 0.0193368.
What is 10 psi in millimeters of mercury?
10 psi = 517.149 mmHg.
What is 100 psi in millimeters of mercury?
100 psi = 5,171.49 mmHg.
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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