Convert Bars to Torr
1 bar is 750.061683 Torr. One bar is exactly 750.061682704 torr.
One bar is 750.06168 torr. To convert bars to torr, multiply by 750.06168; to go the other way, divide by 750.06168 or multiply by 0.0013332237. The factor is exact rather than rounded: it follows from NIST Special Publication 811. Exactly 100,000 pascals by definition, chosen because it sits within a per cent of atmospheric pressure at sea level.
Factor checked against the defining standard · How we check
- Bars × 750.06168
value * 750.061682704750.062 Torr
1 bar in every pressure unit
| Unit | Value | Exact factor |
|---|---|---|
| pounds per square inch | 14.50377377 psi | × 14.503773773 |
| bars (as entered) | 1 bar | — |
| pascals | 100,000 Pa | × 100,000 |
| kilopascals | 100 kPa | × 100 |
| megapascals | 0.1 MPa | × 0.1 |
| atmospheres | 0.9869232667 atm | × 0.986923266716 |
| torr | 750.0616827 Torr | × 750.061682704 |
| inches of mercury | 29.52998016 inHg | × 29.5299801647 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert bars to torr?
- 1.Take the measurement in bars.
- 2.Multiply by 750.06168 — that is how many torr fit in one bar.
- 3.To go back the other way, divide by 750.06168, or multiply by 0.0013332237.
Worked example: 25 bars to torr
- Formula
- bar × 750.06168 = Torr
- Arithmetic
- 25 × 750.06168 = 18,751.542068 Torr
- Answer
- 25 bar = 18,751.542068 Torr
The factor is rounded for display; the figure above is computed from the full value.
Bars to torr conversion table
| Bars | Torr |
|---|---|
| 1 bar | 750.061683 Torr |
| 2 bar | 1,500.123365 Torr |
| 3 bar | 2,250.185048 Torr |
| 4 bar | 3,000.246731 Torr |
| 5 bar | 3,750.308414 Torr |
| 6 bar | 4,500.370096 Torr |
| 7 bar | 5,250.431779 Torr |
| 8 bar | 6,000.493462 Torr |
| 9 bar | 6,750.555144 Torr |
| 10 bar | 7,500.616827 Torr |
| 12 bar | 9,000.740192 Torr |
| 15 bar | 11,250.925241 Torr |
| 20 bar | 15,001.233654 Torr |
| 25 bar | 18,751.542068 Torr |
| 50 bar | 37,503.084135 Torr |
| 100 bar | 75,006.16827 Torr |
| 200 bar | 150,012.336541 Torr |
| 300 bar | 225,018.504811 Torr |
| 500 bar | 375,030.841352 Torr |
| 1000 bar | 750,061.682704 Torr |
| 2000 bar | 1,500,123.365408 Torr |
| 5000 bar | 3,750,308.41352 Torr |
| 10000 bar | 7,500,616.82704 Torr |
What is a bar?
Exactly 100,000 pascals by definition, chosen because it sits within a per cent of atmospheric pressure at sea level. European tyre placards and dive computers use it.
What is a torr?
Exactly one seven-hundred-and-sixtieth of a standard atmosphere. Within a millionth of a millimetre of mercury, which is what it replaced, and still the unit of vacuum work.
How many torr are in a bar?
One bar is 750.06168 torr. Going the other way, one torr is 0.0013332237 bars. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every pressure unit here
| Unit | Symbol | One of these is |
|---|---|---|
| Pounds per square inch | psi | 6894.7573 pascal |
| Bars | bar | 100000 pascal |
| Pascals | Pa | the base unit |
| Kilopascals | kPa | 1000 pascal |
| Megapascals | MPa | 1000000 pascal |
| Atmospheres | atm | 101325 pascal |
| Torr | Torr | 133.32237 pascal |
| Inches of mercury | inHg | 3386.389 pascal |
Questions people actually ask
- How many torr are in a bar?
- 750.06168. Exactly one seven-hundred-and-sixtieth of a standard atmosphere. Within a millionth of a millimetre of mercury, which is what it replaced, and still the unit of vacuum work.
- How do I convert torr back to bars?
- Divide by 750.06168, or multiply by 0.0013332237 — they are the same operation.
Other pressure conversions
Torr to bars — the same conversion the other way.