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Thermal Resistance

°C/WtoK/(BTU/h)

Convert degrees Celsius per watt (°C/W) to kelvins per BTU per hour (K/(BTU/h)).

Factor1 °C/W = 0.2930711 K/(BTU/h)

Converter

°C/W

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

Result
0.293071K/(BTU/h)

Rendered to 6 significant figures.

Formula

Formula
K/(BTU/h) = °C/W × 0.2930711

Multiply any value in degrees Celsius per watt by 0.2930711 to obtain the value in kelvins per BTU per hour.

Worked example

Convert 1 °C/W to K/(BTU/h).

  1. 01Start with 1 °C/W.
  2. 02Multiply by the conversion factor: 1 × 0.2930711 = 0.293071 K/(BTU/h).
Result1 °C/W = 0.293071 K/(BTU/h)

Conversion table

°C/WK/(BTU/h)
10.29307
20.58614
51.4654
102.9307
205.8614
5014.654
10029.307
20058.614
500146.54
1000293.07

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from °C/W to K/(BTU/h)?
1 °C/W equals 0.2930711 K/(BTU/h). To convert, multiply the value in degrees Celsius per watt by 0.2930711.
How do I convert 1 °C/W to K/(BTU/h)?
1 °C/W = 0.293071 K/(BTU/h). For any value, multiply by 0.2930711.
How do I convert K/(BTU/h) back to °C/W?
Divide by the same factor — or equivalently, multiply by 3.412142. So 1 K/(BTU/h) = 3.41214 °C/W.
When would I need to convert degree Celsius per watt to kelvin per BTU per hour?
Thermal-resistance conversions between °C/W and K/(BTU/h) 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).

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