Use this psi to torr converter to change a pound per square inch measurement into its torr equivalent. Enter a number in the calculator above and the result updates instantly.
Pressure conversions are useful for tires, weather reports, barometers, hydraulics, compressed air systems, pumps, and engineering specifications.
What is a pound per square inch?
Pounds per square inch is a pressure unit commonly used in the United States for tires, hydraulics, compressed air, and gauges.
What is a torr?
A torr is a pressure unit often used in vacuum measurement, laboratory work, and applications where pressure is compared with millimeters of mercury.
Psi to Torr Converter formula
To convert pounds per square inch to torr, use the formula below.
1 psi = 51.7149325715 Torr. This relationship is the conversion factor used by the calculator.
How to convert psi to torr
Start with the pound per square inch value, apply the formula, and round the result only after the calculation is complete.
Example: 10 psi = 517.149325715 Torr.
- 1 psi = 51.7149325715 Torr
- 10 psi = 517.149325715 Torr
- 100 psi = 5,171.49325715 Torr
Manual conversion steps
- Write down the value in pounds per square inch.
- Use the conversion formula: torr = pounds per square inch x 51.7149325715.
- Calculate the result in torr.
- Round the answer to the number of decimal places you need.
For quick checking, the converter above performs the same calculation automatically.
Common psi to torr use cases
This conversion is useful in practical situations where measurements need to move between different unit systems or audiences.
- Convert pounds per square inch to torr when you need equivalent measurements in another unit.
Common mistakes when converting psi to torr
These are the most common issues to watch for when doing this conversion by hand.
- Do not mix up the direction of the conversion. psi to torr is not the same as torr to psi.
- Avoid rounding too early. Keep the full result during the calculation, then round the final answer.
Psi to Torr conversion table
| Pound per Square Inch | Torr |
|---|---|
| 1 psi | 51.7149325715 Torr |
| 5 psi | 258.574662857 Torr |
| 10 psi | 517.149325715 Torr |
| 25 psi | 1,292.87331429 Torr |
| 50 psi | 2,585.74662857 Torr |
| 100 psi | 5,171.49325715 Torr |
How to convert torr to psi
To reverse the conversion, switch the two units in the calculator or open the reverse conversion page: torr to psi.
Reversing the units is useful when you already have a value in torr and need the equivalent value in pounds per square inch.
How to use this psi to torr converter
- Enter the number you want to convert in the value field.
- Confirm that the from unit is Pound per Square Inch and the to unit is Torr.
- Read the converted result in the result box.
- Use the copy button if you want to paste the answer elsewhere.
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FAQ
What is the formula for psi to torr?
The formula is: torr = pounds per square inch x 51.7149325715.
How do I convert psi to torr by hand?
Write down the value in pounds per square inch, apply the formula, and round the final result in torr.
How accurate is this converter?
The converter uses standard conversion factors and shows rounded results for readability.
Can I reverse the conversion?
Yes. Use the swap button in the converter or open the related reverse conversion page.
Why do results sometimes have many decimal places?
Some unit conversions do not produce short decimal values. Keep more decimal places for technical work, and round the answer for everyday use.