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Vacuum

mPatoµbar

Convert millipascals (vacuum) (mPa) to microbar (vacuum) (µbar).

Factor1 mPa = 0.01 µbar

Converter

mPa

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1µbar

Rendered to 6 significant figures.

Formula

Formula
µbar = mPa × 0.01

Multiply any value in millipascals (vacuum) by 0.01 to obtain the value in microbar (vacuum).

Worked example

Convert 100 mPa to µbar.

  1. 01Start with 100 mPa.
  2. 02Multiply by the conversion factor: 100 × 0.01 = 1 µbar.
Result100 mPa = 1 µbar

Conversion table

mPaµbar
10.01
20.02
50.05
100.1
200.2
500.5
1001
2002
5005
100010

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from mPa to µbar?
1 mPa equals 0.01 µbar. To convert, multiply the value in millipascals (vacuum) by 0.01.
How do I convert 1 mPa to µbar?
1 mPa = 0.01 µbar. For any value, multiply by 0.01.
How do I convert µbar back to mPa?
Divide by the same factor — or equivalently, multiply by 100. So 1 µbar = 100 mPa.
When would I need to convert millipascal (vacuum) to microbar (vacuum)?
Vacuum-pressure conversions between mPa and µbar 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).

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