Atmospheres to Torr
Convert atmospheres to torr instantly. 1 atm = 759.9999999997 Torr. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert atmospheres to torr
To convert atmospheres to torr, multiply by 759.9999999997. The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
Torr = atm × 759.9999999997
Atmospheres to Torr conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Atmospheres | Torr |
|---|---|
| 1 atm | 760 Torr |
| 2 atm | 1,520 Torr |
| 3 atm | 2,280 Torr |
| 5 atm | 3,800 Torr |
| 10 atm | 7,600 Torr |
| 20 atm | 15,200 Torr |
| 25 atm | 19,000 Torr |
| 50 atm | 38,000 Torr |
| 100 atm | 76,000 Torr |
| 500 atm | 380,000 Torr |
| 1,000 atm | 760,000 Torr |
What is a atmosphere?
The standard atmosphere, defined as exactly 101,325 Pa.
What is a torr?
One 760th of an atmosphere, near-identical to a millimetre of mercury.
The formula
Torr = atm × 759.9999999997
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Atmospheres to Torr
- Type the number of atmospheres you want to convert.
- Read the result in torr straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked torr to atmospheres page.
Atmospheres to Torr — frequently asked questions
How many torr are in a atmosphere?
One atmosphere equals 759.9999999997 Torr. Torr = atm × 759.9999999997
What is the formula to convert atmospheres to torr?
The formula is Torr = atm × 759.9999999997. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert torr back to atmospheres?
Divide instead of multiplying: one torr is 0.0013157895 atm. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this atmospheres to torr free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the atmospheres to torr.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 19, 2026 · Calculation runs client-side · No data collected · Report an error