How many pascals are in one Torr?

One Torr equals exactly 101325/760 pascals, which is approximately 133.32237 Pa. This follows from the definition that 1 standard atmosphere = 101325 Pa = 760 Torr exactly.

How do I convert Torr to pascals manually?

Multiply the Torr value by 133.32237. For example, 760 Torr × 133.32237 = 101,325 Pa (standard atmospheric pressure).

What is a Torr and where is it used?

The Torr is a unit of pressure named after Evangelista Torricelli, who invented the mercury barometer. It is widely used in vacuum science, gas chromatography, mass spectrometry, and physics. 1 Torr = 1/760 standard atmosphere ≈ 133.322 Pa.

Is Torr the same as mmHg?

Nearly identical but not exactly the same. One Torr is defined as exactly 1/760 atm, while 1 mmHg is the physical pressure exerted by a 1 mm mercury column at 0 °C. The difference is about 0.000015%, so they are used interchangeably in most practical applications.

What is standard atmospheric pressure in Torr and pascals?

Standard atmospheric pressure is exactly 760 Torr and exactly 101,325 Pa. These two values define the Torr unit.

Can I convert partial Torr values like 0.1 Torr?

Yes. Multiply any Torr value — including decimals — by 133.32237. So 0.1 Torr = 0.1 × 133.32237 = 13.332 Pa.

Torr to Pascals Converter

Enter a pressure in Torr and get the Pascal equivalent instantly — reverse Pascal-to-Torr conversion included.

Converter

Pressure in Torr

Result in pascals (Pa)

Reverse: pascals to Torr

Pressure in pascals (Pa)

Result in Torr

Reference Table

Torr Pascals (Pa)

0.001 Torr 0.13332 Pa

0.01 Torr 1.3332 Pa

0.1 Torr 13.332 Pa

1 Torr 133.32 Pa

10 Torr 1,333.2 Pa

100 Torr 13,332 Pa

760 Torr (1 atm) 101,325 Pa

1,000 Torr 133,322 Pa

7,600 Torr 1,013,250 Pa

Summary

This converter turns any Torr value into pascals in real time using the exact factor 1 Torr = 101325/760 Pa ≈ 133.32237 Pa, which follows from the international definition of the standard atmosphere. The Torr is named after Evangelista Torricelli and appears frequently in vacuum science, gas chromatography, and physics, while the pascal is the SI unit of pressure used in modern engineering. All computation runs in your browser with no server round-trips. A reverse field lets you convert pascals back to Torr, and a reference table covers common pressures from near-vacuum to atmospheric.

How it works

Enter the pressure value in Torr in the top input field.
The converter multiplies your value by 133.32237 to get pascals.
The result updates instantly as you type.
Use the reverse field to convert pascals back to Torr.
Click "Copy" next to any result to copy it to your clipboard.
Check the reference table for common Torr-to-pascal values.

Use cases

Convert vacuum system pressure specs from Torr to SI pascals.
Translate gas chromatography instrument readings into SI units.
Express partial pressures in pascals for modern fluid dynamics calculations.
Convert blood pressure or physiological pressure values from Torr to Pa.
Cross-check vacuum pump ratings between Torr and pascal datasheets.
Convert older scientific literature pressures into SI for comparison.

Frequently Asked Questions

Last updated: 2026-06-18 · Reviewed by Nham Vu