Torr to mmHg Converter
Pressure · unit-converter
Convert Torr 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 Torr
The torr is defined as 1/760 of a standard atmosphere (≈133.32236842105263 Pa). It is widely used in vacuum science alongside pascal.
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 torr to millimeter of mercury (mmhg)
1 torr equals 1 mmhg in this tool (via pascal):
1 torr = (133.32236842105263 Pa ÷ 133.32236842105263 Pa) mmhg = 1 mmhg
Each torr carries 133.32236842105263 Pa and each mmhg 133.32236842105263 Pa, so one torr equals 133.32236842105263 ÷ 133.32236842105263 mmhg.
Let p(torr) be pressure in Torr (torr), and p(mmhg) in mmHg (mmhg). Then:
p(mmhg) = p(torr) × (133.32236842105263 / 133.32236842105263)
Equivalently, divide by how many torr fit into one mmhg (Pa per mmhg divided by Pa per torr):
p(mmhg) = p(torr) ÷ 1
Examples
Example #1: Convert 1 torr to mmhg
1 torr = 1 torr × (133.32236842105263/133.32236842105263) mmhg = 1 mmhg
1 torr = 1 torr ÷ 1 = 1 mmhg
1 torr × (133.32236842105263/133.32236842105263) = 1.000000 mmhg
Example #2: Convert 10 torr to mmhg
10 torr = 10 torr × (133.32236842105263/133.32236842105263) mmhg = 10 mmhg
10 torr = 10 torr ÷ 1 = 10 mmhg
10 torr × (133.32236842105263/133.32236842105263) = 10.000000 mmhg
Summary
To convert Torr to mmHg, both units use the same pascal factor (133.32236842105263 Pa per unit) in this tool, so the numeric value is unchanged (1:1).
Relationship context
You are converting between Torr and mmHg. In this tool both use the same pascal factor (standard atmosphere ÷ 760), so numeric values match one-to-one between torr and mmHg.
Conversion tables
| Torr (torr) | mmHg (mmhg) |
|---|---|
| 0.1 | 0.1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| Torr (torr) | mmHg (mmhg) |
|---|---|
| 10 | 10 |
| 20 | 20 |
| 30 | 30 |
| 40 | 40 |
| 50 | 50 |
| 60 | 60 |
| 70 | 70 |
| 80 | 80 |
| 90 | 90 |
| 100 | 100 |