---
title: "Torrs to Standard atmospheres — Torr to atm converter"
description: "1 torr = 0.0013158 standard atmospheres. Convert torrs to standard atmospheres with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/torr-to-atmospheres/
site: "At One Place"
---

# Torrs to standard atmospheres

**1 torr in standard atmospheres: 1 Torr = 0.0013158 atm**

atm = Torr × 0.001315789474

To convert torrs to standard atmospheres, multiply by 0.001315789474. The table below gives the values people look up most often, and the converter works for any number.

## Torrs to standard atmospheres table

*Common torr values converted to standard atmospheres.*

| Torrs | Standard atmospheres |
| --- | --- |
| 1 Torr | 0.0013158 |
| 2 Torr | 0.0026316 |
| 3 Torr | 0.0039474 |
| 4 Torr | 0.0052632 |
| 5 Torr | 0.0065789 |
| 10 Torr | 0.013158 |
| 15 Torr | 0.019737 |
| 20 Torr | 0.026316 |
| 25 Torr | 0.032895 |
| 30 Torr | 0.039474 |
| 40 Torr | 0.052632 |
| 50 Torr | 0.065789 |
| 75 Torr | 0.098684 |
| 100 Torr | 0.13158 |
| 250 Torr | 0.32895 |
| 500 Torr | 0.65789 |
| 1,000 Torr | 1.315789 |

## How the conversion works

The relationship is atm = Torr × 0.001315789474. Both units measure pressure, so the conversion is a fixed factor that never changes.

## Common questions

### How many standard atmospheres are in one torr?

One torr equals 0.0013158 standard atmospheres. atm = Torr × 0.001315789474.

### How do you convert torrs to standard atmospheres?

Use atm = Torr × 0.001315789474. So 10 Torr is 0.013158 atm.

### How many torrs are in one standard atmosphere?

One standard atmosphere equals 760 torrs, which is the reverse of the conversion above.

## Related pages

- [Standard atmospheres to Torrs](https://atoneplace.net/convert/atmospheres-to-torr/)
- [Torrs to Pascals](https://atoneplace.net/convert/torr-to-pascals/)
- [Torrs to Kilopascals](https://atoneplace.net/convert/torr-to-kilopascals/)
- [Torrs to Bars](https://atoneplace.net/convert/torr-to-bar/)
- [Torrs to Pounds per square inch](https://atoneplace.net/convert/torr-to-psi/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)