Bar to Atmosphere Pressure Converter
Convert Bar (bar) to Atmosphere (atm) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Atmosphere to Bar (atm to bar) ►
How to convert Bar to Atmosphere
1 bar = 100,000 Pa
1 atm = 101,325 Pa
1 bar (bar) is equal to 0.9869233 atmosphere (atm).
atm = bar × 0.9869233
Multiply the pressure in bars by 0.9869233:
Example: Convert 1 bar to atm:
atm = 1 × 0.9869233 = 0.986923 atm
What is a Bar?
The Bar (bar) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Atmosphere?
The Atmosphere (atm) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts pressure from Bar into Atmosphere. One bar equals 0.986923267 atm.
Bar to Atmosphere conversion table
Common bar values and the matching atm result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Bar (bar) | Atmosphere (atm) |
|---|---|
| 0.01 bar | 0.009869233 atm |
| 0.1 bar | 0.098692327 atm |
| 1 bar | 0.986923267 atm |
| 2 bar | 1.973846533 atm |
| 10 bar | 9.869232667 atm |
| 100 bar | 98.692326672 atm |
How this calculator works
The form on this page is a Bar-to-Atmosphere converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the atm result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many atm are in 1 bar?
1 bar = 0.986923267 atm.
How do I convert Bar to Atmosphere?
Multiply the pressure in bars by 0.9869233:
Is this bar to atm converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.