Convert Atmospheres to Bar
1 atm = 1.0132 bar
Conversion Table
| atmospheres (atm) | bar (bar) |
|---|---|
| 0.5 | 0.506625 |
| 1 | 1.0132 |
| 2 | 2.0265 |
| 5 | 5.0663 |
| 10 | 10.1325 |
| 25 | 25.3313 |
| 50 | 50.6625 |
| 100 | 101.33 |
| 250 | 253.31 |
| 500 | 506.63 |
| 1000 | 1013.25 |
How to Convert atmospheres to bar
To convert atmospheres to bar, multiply the value by the conversion factor:
For example: 10 atm = 10.1325 bar
Related Converters
About atmospheres and bar
The Conversion Formula
To convert atmospheres to bar, multiply the value by the conversion factor: 1 atm = 1.0132 bar. For a worked example, suppose you need to convert 25 atm to bar: 25 × 1.0132 = 25.3313 bar. To convert in the opposite direction, divide by 1.0132, or equivalently multiply by 0.986923.
About atmospheres
The standard atmosphere (atm) represents the average pressure exerted by Earth's atmosphere at sea level. It was originally defined by the height of mercury in a barometer (760 mm). It is the most intuitive unit for understanding pressure: 2 atm means double the pressure you feel standing on the beach. atmospheres are commonly used in Diving depth (1 atm per 10m), Chemistry (Standard Temp/Pressure), Hyperbaric chambers, and Spacecraft engineering, Altitude simulation.
At sea level, the air pressure is exactly 1 atm.
About bar
The bar is a metric unit, but not an SI unit. It was created to be exactly 100,000 Pascals, which makes it very close to standard atmospheric pressure (1.013 bar). This 1-to-1 approximate relationship makes 'bar' very popular in diving, hydraulics, and tire gauges outside the US. bar are commonly used in Scuba diving, Espresso machines (9 bar!), Tire pressure (Europe), and Industrial hydraulics, Weather reports (mbar).
Car tires are often inflated to 2.2 bar.
When Would You Convert atmospheres to bar?
Converting between atmospheres and bar is one of the most common pressure conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 atm = 1.0132 bar) memorized or bookmarked can save time in professional and everyday contexts alike.