▸ processconvert
Thermal Resistance

mK/Wto°C/W

Convert millikelvins per watt (mK/W) to degrees Celsius per watt (°C/W).

Factor1 mK/W = 0.001 °C/W

Converter

mK/W

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

Result
1°C/W

Rendered to 6 significant figures.

Formula

Formula
°C/W = mK/W × 0.001

Multiply any value in millikelvins per watt by 0.001 to obtain the value in degrees Celsius per watt.

Worked example

Convert 1000 mK/W to °C/W.

  1. 01Start with 1000 mK/W.
  2. 02Multiply by the conversion factor: 1000 × 0.001 = 1 °C/W.
Result1000 mK/W = 1 °C/W

Conversion table

mK/W°C/W
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 mK/W to °C/W?
1 mK/W equals 0.001 °C/W. To convert, multiply the value in millikelvins per watt by 0.001.
How do I convert 1 mK/W to °C/W?
1 mK/W = 0.001 °C/W. For any value, multiply by 0.001.
How do I convert °C/W back to mK/W?
Divide by the same factor — or equivalently, multiply by 1000. So 1 °C/W = 1000 mK/W.
When would I need to convert millikelvin per watt to degree Celsius per watt?
Thermal-resistance conversions between mK/W and °C/W appear in electronics cooling (heat-sink and TIM datasheets), transformer, motor and generator thermal-rise calculations, lumped-element R-C thermal-network modelling, and transient heat-transfer analysis. K/W and °C/W are the SI standard; mK/W and µK/W cover sub-SI heat-sink and TIM datasheet ladders; K/kW and K/MW cover large-equipment and power-plant notation; °F·h/BTU and °F·s/BTU are the US convention. This category is lumped thermal resistance only — it does NOT include area-normalized R-value (m²·K/W), thermal-conductivity inverse with geometry, or U-value calculations, all of which are different physical quantities.
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).

Related conversions