Convert attopascal to bar
Please provide values below to convert attopascal [aPa] to bar [bar], or Convert bar to attopascal.
1 aPa = 1.0000e-23 bar. To convert attopascal to bar, multiply the value by 1.0000e-23; to go the other way, divide by it (1 bar = 1.0000e+23 aPa). Both units measure pressure and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 aPa = 1.0000e-23 bar
- 1 bar = 1.0000e+23 aPa
- 10 aPa = 1.0000e-22 bar
- 100 aPa = 1.0000e-21 bar
How to Convert Attopascal to Bar
1 aPa = 1e-23 bar
Example: convert 15 aPa to bar:
15 aPa = 15 × 1e-23 bar = 1.5e-22 bar
Attopascal to Bar Conversion Table
| attopascal | bar |
|---|---|
| 1 aPa | 1.0000e-23 bar |
| 2 aPa | 2.0000e-23 bar |
| 3 aPa | 3.0000e-23 bar |
| 5 aPa | 5.0000e-23 bar |
| 10 aPa | 1.0000e-22 bar |
| 20 aPa | 2.0000e-22 bar |
| 50 aPa | 5.0000e-22 bar |
| 100 aPa | 1.0000e-21 bar |
| 500 aPa | 5.0000e-21 bar |
| 1000 aPa | 1.0000e-20 bar |
Attopascal
The attopascal (aPa) is a unit of pressure equal to 10^-18 pascals, representing an extremely small pressure measurement.
History/Origin
The attopascal was introduced as part of the SI prefixes to denote very small quantities of pressure, but it is rarely used in practical applications due to its minuscule magnitude.
Current Use
The attopascal is primarily used in scientific research and theoretical contexts where extremely small pressure differences are relevant, although it remains largely a conceptual unit.
Bar
The bar is a unit of pressure equal to 100,000 pascals, roughly the atmospheric pressure at sea level.
History/Origin
The bar was introduced in 1909 by the British engineering community as a convenient unit for measuring pressure, especially in meteorology and engineering contexts.
Current Use
The bar is widely used in meteorology, engineering, and industrial applications to measure pressure, although the pascal is the SI base unit. It is also common in tire pressure measurements and other pressure-related fields.
Frequently Asked Questions
What is 1 attopascal in bar?
1 attopascal (aPa) = 1.0000e-23 bar (bar).
How do you convert attopascal to bar?
Multiply the attopascal value by 1.0000e-23. For example, 25 aPa × 1.0000e-23 = 2.5000e-22 bar.
What is 10 attopascal in bar?
10 aPa = 1.0000e-22 bar.
Which unit is larger, the attopascal or the bar?
The bar is the larger unit: 1 aPa equals only 1.0000e-23 bar.