Atmosphere to Bar
Instantly convert Atmosphere (atm) to Bar (bar). Free online converter with accurate results.
atm
Bar (bar)
bar
bar = atm × 1.01325
Quick Reference: Atmosphere to Bar
| atm | bar |
|---|---|
| 0.1 | 0.1013 |
| 0.5 | 0.5066 |
| 1 | 1.0133 |
| 2 | 2.0265 |
| 5 | 5.0663 |
| 10 | 10.1325 |
How to Convert Atmosphere to Bar
Formula:
bar = atm × 1.01325
Example:
1 atm = 1.0133 bar
- Enter the value in Atmosphere you want to convert
- The result is calculated automatically
- Copy your result in Bar or continue converting
About Atmosphere and Bar
Atmosphere (atm) and bar are very close in value—one atm equals approximately 1.013 bar. Standard atmosphere was originally defined as the average air pressure at sea level, while bar is a convenient metric unit.
Common Uses for This Conversion
Scientific calculations, diving depth pressure estimates (each 10m adds about 1 atm), vacuum specifications, and laboratory pressure standards.
💡Did You Know?
At the bottom of the Mariana Trench (about 11 km deep), the pressure is over 1,000 atm—crushing a styrofoam cup into a tiny version of itself, a popular experiment on research submarines!
Frequently Asked Questions
To convert PSI (pounds per square inch) to bar, multiply by 0.0689476. For example, 30 PSI = 30 × 0.0689476 = 2.07 bar. To convert bar to PSI, multiply by 14.5038.
Standard atmospheric pressure at sea level equals: 101,325 pascals (Pa), 1.01325 bar, 1 atmosphere (atm), 14.696 PSI, 760 mmHg (torr), or 29.92 inches of mercury. These values are useful for weather forecasting and altitude calculations.
To convert bar to PSI, multiply by 14.5038. For example, 2 bar = 2 × 14.5038 = 29.01 PSI. Tire pressures are often given in PSI (US) or bar (Europe), so this conversion is useful for travelers.
Absolute pressure is measured relative to a perfect vacuum (0 Pa). Gauge pressure is measured relative to atmospheric pressure. For example, a tire at 32 PSI gauge pressure is actually at about 46.7 PSI absolute (32 + 14.7 atmospheric).
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