PRESSURE CONVERSION
Standard atmosphere to Bar.
Convert standard atmosphere (atm) to bar (bar), with the math explained.
1 atm = 1.01325 bar
THE MATH, MADE SIMPLE
How to convert standard atmosphere to bar
Multiply your standard atmosphere value by 1.01325 to get the equivalent in bar. Both units are normalized through the pascal.
bar = atm × 1.0132510 atm = 10.1325 bar
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
atm to bar conversion table
| Standard atmosphere (atm) | Bar (bar) |
|---|---|
| 1 atm | 1.01325 bar |
| 2 atm | 2.0265 bar |
| 5 atm | 5.06625 bar |
| 10 atm | 10.1325 bar |
| 20 atm | 20.265 bar |
| 50 atm | 50.6625 bar |
| 100 atm | 101.325 bar |
| 500 atm | 506.625 bar |
| 1,000 atm | 1,013.25 bar |
About the standard atmosphere
The standard atmosphere (atm) is a unit of pressure. One standard atmosphere equals 101,325 pascal (base unit) in this calculator.
All standard atmosphere conversionsAbout the bar
The bar (bar) is a unit of pressure. One bar equals 100,000 pascal (base unit) in this calculator.
All bar conversionsCommon questions
What is 1 atm in bar?
One standard atmosphere equals 1.01325 bar. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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