Atm to Torr Converter

Conversion Updated 15 Jun 2026

This Atm to Torr Converter lets you convert Atmospheres (atm) into Torr (torr) in one step. Enter a value in atmospheres and you'll instantly see the equivalent in torr, worked out with the formula torr = atm x 760. It's handy whenever you need a quick, precise atmospheres-to-torr conversion without doing the arithmetic by hand.

  • Conversion constants are fixed and do not vary by region.

Formula

torr = atm x 760
  • To convert atmospheres to torr, multiply your value by the fixed factor 760 (so 1 atm = 760 torr).
  • The factor comes from the internationally agreed definitions of each unit, so it never changes.
  • Displayed results are rounded for readability, but the full-precision value is used in the calculation.

Example

Inputs
  • Atmospheres (atm): 1

Start with 1 atm. Multiply by 760 to get 760 torr.

Frequently asked questions

How do I convert atmospheres to torr?
Multiply the number of atmospheres by 760. For example, 1 atm equals 760 torr.
Are these conversion factors accurate?
Yes. The calculator uses internationally accepted definitions for each unit, so the conversion factor is exact.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.