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Vacuum

mTorrtokPa

Convert millitorr (mTorr) to kilopascals (vacuum) (kPa).

Factor1 mTorr = 0.0001333224 kPa

Converter

mTorr

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

Result
1.33322kPa

Rendered to 6 significant figures.

Formula

Formula
kPa = mTorr × 0.0001333224

Multiply any value in millitorr by 0.0001333224 to obtain the value in kilopascals (vacuum).

Worked example

Convert 10000 mTorr to kPa.

  1. 01Start with 10000 mTorr.
  2. 02Multiply by the conversion factor: 10000 × 0.0001333224 = 1.33322 kPa.
Result10000 mTorr = 1.33322 kPa

Conversion table

mTorrkPa
10.00013332
20.00026664
50.00066661
100.0013332
200.0026664
500.0066661
1000.013332
2000.026664
5000.066661
10000.13332

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from mTorr to kPa?
1 mTorr equals 0.0001333224 kPa. To convert, multiply the value in millitorr by 0.0001333224.
How do I convert 1 mTorr to kPa?
1 mTorr = 0.000133322 kPa. For any value, multiply by 0.0001333224.
How do I convert kPa back to mTorr?
Divide by the same factor — or equivalently, multiply by 7500.617. So 1 kPa = 7500.62 mTorr.
When would I need to convert millitorr to kilopascal (vacuum)?
Vacuum-pressure conversions between mTorr and kPa 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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