Thermal Resistance Converter

Convert between all thermal resistance units instantly. Select your units from the dropdowns below and enter a value to see the conversion in real-time.

SI unit: kelvin per watt (K/W)

Conversion Formula

About Thermal Resistance Units

Common Thermal Resistance Conversions

• 1 K/W = 1 °C/W (exact: 1 K = 1 °C for temperature intervals)
• 1 °F/W = 5/9 K/W ≈ 0.5556 K/W; 1 K/W = 9/5 °F/W = 1.8 °F/W
• 1 h·°F/BTU = (5/9 × 3600 / 1055.05585262) K/W ≈ 1.8956 K/W
• 1 h·°C/kcal = 3600 / 4186.8 K/W ≈ 0.8598 K/W
• 1 min·K/W = 60 K/W; 1 h·K/W = 3600 K/W; 1 day·K/W = 86 400 K/W
• 1 mK/W = 10^-3 K/W; 1 kK/W = 1000 K/W
• CPU heatsink: ≈ 0.1-1 K/W; Thermal paste layer: ≈ 0.01-0.1 K/W
• IC junction-to-case (R_θJC): typically 0.1-10 °C/W; junction-to-ambient (R_θJA): 1-100 °C/W

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