PSI to mmHg Converter
Pressure · unit-converter
Convert PSI to mmHg with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations bridge through pascal with fixed definitions (standard atmosphere = 101,325 Pa; torr and mmHg = atm/760; plus industrial/manometer units like kgf/cm², inHg, inH2O, and mmH2O).
About PSI
Pounds-force per square inch (PSI) is common for tires, hydraulics, and US industrial equipment.
About mmHg
Millimeters of mercury (mmHg) is common in medicine (e.g. blood pressure). Here it uses the same Pa per unit as torr (133.32236842105263 Pa).
How to convert psi to millimeter of mercury (mmhg)
1 psi equals 51.71493257150436 mmhg in this tool (via pascal):
1 psi = (6894.757293168 Pa ÷ 133.32236842105263 Pa) mmhg = 51.71493257150436 mmhg
Each psi carries 6894.757293168 Pa and each mmhg 133.32236842105263 Pa, so one psi equals 6894.757293168 ÷ 133.32236842105263 mmhg.
Let p(psi) be pressure in PSI (psi), and p(mmhg) in mmHg (mmhg). Then:
p(mmhg) = p(psi) × (6894.757293168 / 133.32236842105263)
Equivalently, divide by how many psi fit into one mmhg (Pa per mmhg divided by Pa per psi):
p(mmhg) = p(psi) ÷ 0.01933677470462397
Examples
Example #1: Convert 1 psi to mmhg
1 psi = 1 psi × (6894.757293168/133.32236842105263) mmhg = 51.7149325715 mmhg
1 psi = 1 psi ÷ 0.01933677470462397 = 51.7149325715 mmhg
1 psi × (6,894.757293168/133.32236842105263) = 51.714933 mmhg
Example #2: Convert 10 psi to mmhg
10 psi = 10 psi × (6894.757293168/133.32236842105263) mmhg = 517.149325715 mmhg
10 psi = 10 psi ÷ 0.01933677470462397 = 517.149325715 mmhg
10 psi × (6,894.757293168/133.32236842105263) = 517.149326 mmhg
Summary
To convert PSI to mmHg, multiply the value in psi by (6894.757293168 Pa per psi) / (133.32236842105263 Pa per mmhg). Equivalently: value_mmhg = value_psi × (6894.757293168 / 133.32236842105263). Numerically, 1 psi equals 51.71493257150436 mmhg.
Relationship context
Both PSI and mmHg are converted by fixed multiples of the pascal. Multiplying by (Pa per psi) ÷ (Pa per mmhg) gives the same result as passing through pascal, keeping bar, atm, PSI, kPa, hPa, torr, and mmHg consistent on the hub.
Conversion tables
| PSI (psi) | mmHg (mmhg) |
|---|---|
| 0.1 | 5.1714932571 |
| 1 | 51.7149325715 |
| 2 | 103.429865143 |
| 3 | 155.144797715 |
| 4 | 206.859730286 |
| 5 | 258.574662858 |
| 6 | 310.289595429 |
| 7 | 362.004528001 |
| 8 | 413.719460572 |
| 9 | 465.434393144 |
| PSI (psi) | mmHg (mmhg) |
|---|---|
| 10 | 517.149325715 |
| 20 | 1,034.29865143 |
| 30 | 1,551.44797715 |
| 40 | 2,068.59730286 |
| 50 | 2,585.74662858 |
| 60 | 3,102.89595429 |
| 70 | 3,620.04528001 |
| 80 | 4,137.19460572 |
| 90 | 4,654.34393144 |
| 100 | 5,171.49325715 |