processconvert
Vacuum

PatokPa

Convert pascals (vacuum) (Pa) to kilopascals (vacuum) (kPa).

Factor1 Pa = 0.001 kPa

Converter

Pa

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

Result
1kPa

Rendered to 6 significant figures.

Formula

Formula
kPa = Pa × 0.001

Multiply any value in pascals (vacuum) by 0.001 to obtain the value in kilopascals (vacuum).

Worked example

Convert 1000 Pa to kPa.

  1. 01Start with 1000 Pa.
  2. 02Multiply by the conversion factor: 1000 × 0.001 = 1 kPa.
Result1000 Pa = 1 kPa

Conversion table

PakPa
10.001
20.002
50.005
100.01
200.02
500.05
1000.1
2000.2
5000.5
10001

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from Pa to kPa?
1 Pa equals 0.001 kPa. To convert, multiply the value in pascals (vacuum) by 0.001.
How do I convert 1 Pa to kPa?
1 Pa = 0.001 kPa. For any value, multiply by 0.001.
How do I convert kPa back to Pa?
Divide by the same factor — or equivalently, multiply by 1000. So 1 kPa = 1000 Pa.
When would I need to convert pascal (vacuum) to kilopascal (vacuum)?
Vacuum-pressure conversions between Pa 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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