inHg to Torr Converter
Pressure · unit-converter
Convert inHg to Torr 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 inHg
Inches of mercury (inHg) is used in aviation altimetry and vacuum readings in some US contexts.
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.
How to convert inch of mercury (inhg) to torr
1 inhg equals 25.39999999996447 torr in this tool (via pascal):
1 inhg = (3386.38815789 Pa ÷ 133.32236842105263 Pa) torr = 25.39999999996447 torr
Each inhg carries 3386.38815789 Pa and each torr 133.32236842105263 Pa, so one inhg equals 3386.38815789 ÷ 133.32236842105263 torr.
Let p(inhg) be pressure in inHg (inhg), and p(torr) in Torr (torr). Then:
p(torr) = p(inhg) × (3386.38815789 / 133.32236842105263)
Equivalently, divide by how many inhg fit into one torr (Pa per torr divided by Pa per inhg):
p(torr) = p(inhg) ÷ 0.03937007874021255
Examples
Example #1: Convert 1 inhg to torr
1 inhg = 1 inhg × (3386.38815789/133.32236842105263) torr = 25.4 torr
1 inhg = 1 inhg ÷ 0.03937007874021255 = 25.4 torr
1 inhg × (3,386.38815789/133.32236842105263) = 25.400000 torr
Example #2: Convert 10 inhg to torr
10 inhg = 10 inhg × (3386.38815789/133.32236842105263) torr = 254 torr
10 inhg = 10 inhg ÷ 0.03937007874021255 = 254 torr
10 inhg × (3,386.38815789/133.32236842105263) = 254.000000 torr
Summary
To convert inHg to Torr, multiply the value in inhg by (3386.38815789 Pa per inhg) / (133.32236842105263 Pa per torr). Equivalently: value_torr = value_inhg × (3386.38815789 / 133.32236842105263). Numerically, 1 inhg equals 25.39999999996447 torr.
Relationship context
Both inHg and Torr are converted by fixed multiples of the pascal. Multiplying by (Pa per inhg) ÷ (Pa per torr) gives the same result as passing through pascal, keeping bar, atm, PSI, kPa, hPa, torr, and mmHg consistent on the hub.
Conversion tables
| inHg (inhg) | Torr (torr) |
|---|---|
| 0.1 | 2.54 |
| 1 | 25.4 |
| 2 | 50.7999999999 |
| 3 | 76.1999999999 |
| 4 | 101.6 |
| 5 | 127 |
| 6 | 152.4 |
| 7 | 177.8 |
| 8 | 203.2 |
| 9 | 228.6 |
| inHg (inhg) | Torr (torr) |
|---|---|
| 10 | 254 |
| 20 | 507.999999999 |
| 30 | 761.999999999 |
| 40 | 1,016 |
| 50 | 1,270 |
| 60 | 1,524 |
| 70 | 1,778 |
| 80 | 2,032 |
| 90 | 2,286 |
| 100 | 2,540 |