Vacuum
bartoPa
Convert bar (vacuum) (bar) to pascals (vacuum) (Pa).
Factor1 bar = 100000 Pa
Converter
bar
Accepts numbers or expressions, e.g. 150 + 14.7
Result
Pa
Rendered to 6 significant figures.
Formula
Formula
Pa = bar × 100000
Multiply any value in bar (vacuum) by 100000 to obtain the value in pascals (vacuum).
Worked example
Convert 1 bar to Pa.
- 01Start with 1 bar.
- 02Multiply by the conversion factor: 1 × 100000 = 100000 Pa.
Result1 bar = 100000 Pa
Conversion table
| bar | Pa |
|---|---|
| 1 | 1.0000e+5 |
| 2 | 2.0000e+5 |
| 5 | 5.0000e+5 |
| 10 | 1.0000e+6 |
| 20 | 2.0000e+6 |
| 50 | 5.0000e+6 |
| 100 | 1e+7 |
| 200 | 2e+7 |
| 500 | 5e+7 |
| 1000 | 1e+8 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from bar to Pa?
1 bar equals 100000 Pa. To convert, multiply the value in bar (vacuum) by 100000.
How do I convert 1 bar to Pa?
1 bar = 100000 Pa. For any value, multiply by 100000.
How do I convert Pa back to bar?
Divide by the same factor — or equivalently, multiply by 1e-5. So 1 Pa = 1e-5 bar.
When would I need to convert bar (vacuum) to pascal (vacuum)?
Vacuum-pressure conversions between bar and Pa are common in vacuum-chamber instrumentation, pump-down endpoint specification, semiconductor and deposition process work, freeze-drying, electron-microscopy column pressure, vacuum metallurgy and HVAC / refrigeration service. Torr, mmHg and inHg dominate manometric vacuum gauges; mbar is standard on European instruments; micron Hg and mTorr cover high-vacuum work; Pa and kPa are the SI references. This category is vacuum / instrumentation intent — dimensionally the same as pressure, but kept separate so process-pressure searches and vacuum searches stay on the right page.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).