psi to torr Converter
Convert psi to torr instantly with our accurate calculator. Enter your psi value and get precise torr results for any scientific or industrial application.
Pound per square inch
Torr (mmHg)
How to convert psi to torr
A fast three-step process for accurate pressure unit conversion.
Type your psi value
Enter the pressure reading in pounds per square inch into the input field.
Click the convert button
The tool instantly applies the standard conversion factor to your value.
Read the torr result
Your pressure value is displayed in torr, ready to copy or use.
Why use this psi to torr Converter?
Reliable pressure conversions backed by exact scientific constants.
The Mathematical Formula
Torr = psi × 51.7149. This factor comes from the precise relationship between imperial and metric pressure units.
Precision You Can Trust
Calculations use the standard NIST-defined conversion constant for laboratory-grade accuracy.
Saves Time and Reduces Errors
Manual conversions invite mistakes; this tool delivers correct results in milliseconds.
Quick Reference
| Pound per square inch | Torr (mmHg) |
|---|---|
| 1 psi | 51.7149 torr |
| 2 psi | 103.4298 torr |
| 5 psi | 258.5746 torr |
| 10 psi | 517.1492 torr |
| 20 psi | 1034.2984 torr |
| 50 psi | 2585.7459 torr |
Practical Examples of psi to torr
Real-world scenarios where this conversion is useful.
Vacuum Pump Calibration
A pump rated at 29.5 psi equals about 1525 torr, matching rough vacuum levels.
Weather Balloon Sensors
Sensors measuring 14.7 psi at sea level report approximately 760 torr.
Compressed Gas Cylinders
A 3000 psi tank reads roughly 155,144 torr for high-pressure industrial systems.
Medical Equipment Testing
Hospital sterilizers operating near 30 psi require verification around 1551 torr.
Frequently Asked Questions
Common queries regarding this specific conversion.
Q.What is the formula to convert psi to torr?
Multiply the psi value by 51.7149 to obtain the equivalent pressure in torr.
Q.How many torr equal 1 psi?
One psi equals approximately 51.7149 torr based on the standard conversion factor.
Q.Is torr the same as mmHg?
Torr and millimeters of mercury are nearly identical, with 1 torr equal to 0.999 mmHg.
Q.Why convert psi to torr?
Scientific fields and European industries commonly use torr, requiring imperial readings to be converted.
Discover Related Tools
Need to convert back? Use the reverse Torr (mmHg) to Pound per square inch calculator. For other measurements, explore our complete suite of Pressure Converters or the full Unit Converter Hub.