---
title: "Standard atmospheres to Pascals — atm to Pa converter"
description: "1 standard atmosphere = 101,325 pascals. Convert standard atmospheres to pascals with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/atmospheres-to-pascals/
site: "At One Place"
---

# Standard atmospheres to pascals

**1 standard atmosphere in pascals: 1 atm = 101,325 Pa**

Pa = atm × 101,325

To convert standard atmospheres to pascals, multiply by 101,325. The table below gives the values people look up most often, and the converter works for any number.

## Standard atmospheres to pascals table

*Common standard atmosphere values converted to pascals.*

| Standard atmospheres | Pascals |
| --- | --- |
| 1 atm | 101,325 |
| 2 atm | 202,650 |
| 3 atm | 303,975 |
| 4 atm | 405,300 |
| 5 atm | 506,625 |
| 10 atm | 1,013,250 |
| 15 atm | 1,519,875 |
| 20 atm | 2,026,500 |
| 25 atm | 2,533,125 |
| 30 atm | 3,039,750 |
| 40 atm | 4,053,000 |
| 50 atm | 5,066,250 |
| 75 atm | 7,599,375 |
| 100 atm | 10,132,500 |
| 250 atm | 25,331,250 |
| 500 atm | 50,662,500 |
| 1,000 atm | 101,325,000 |

## How the conversion works

The relationship is Pa = atm × 101,325. Both units measure pressure, so the conversion is a fixed factor that never changes.

## Common questions

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

One standard atmosphere equals 101,325 pascals. Pa = atm × 101,325.

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

Use Pa = atm × 101,325. So 10 atm is 1,013,250 Pa.

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

One pascal equals 0.000009869 standard atmospheres, which is the reverse of the conversion above.

## Related pages

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

## 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/)