kelvin per watt
Thermal resistanceexact by definition
The kelvin per watt is the SI unit of absolute thermal resistance: the temperature difference in kelvin that one watt of heat flow will establish across an object. It is the reciprocal of thermal conductance in W/K, and its factor of 1 is exact as a coherent SI combination. A CPU heatsink rated at 0.5 K/W will sit 50 K above ambient when dissipating 100 W.
Watch out: This is a whole-object resistance, not the per-area R-value used for insulation. The building unit, RSI in m²·K/W, is this multiplied by an area. A 0.5 K/W heatsink and an RSI 0.5 wall are not comparable quantities.
| 1 | 1 |
One kelvin per watt in every thermal resistance unit
| 1,000 | Celsius degree per kilowatt (°C/kW) | |
| 1,000 | kelvin per kilowatt (K/kW) | |
| 1.16222 | Celsius hour per kilocalorie (°C·h/kcal) | |
| 1 | kelvin per watt (K/W)this unit | |
| 1 | Celsius degree per watt (°C/W) | |
| 0.527528 | Fahrenheit hour per BTU (°F·h/BTU) | |
| 0.527528 | Rankine hour per BTU (°R·h/BTU) | |
| 0.001 | kelvin per milliwatt (K/mW) |
Solvers that use thermal resistance