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unit.thermal-conductivity Calculator
Converts thermal conductivity between SI (W/m·K), CGS (cal/cm·s·°C), and imperial (BTU·in/hr·ft²·°F) units. Building insulation R-values, heat exchanger design, and material datasheets all use different conventions.
Inputs
Value
How easily heat flows through the material (W/m·K). Metals are high; insulation materials are very low.
Results
BTU/hrftF
Reference formula or conversion factor shown for context.
kcal/hmC
Reference formula or conversion factor shown for context.
mW/mK
Reference formula or conversion factor shown for context.
input (thermal conductivity (W/mK))
Sample size or count used in the calculation.
1 BTU/hrftF =
Reference formula or conversion factor shown for context.
1 kcal/hmC =
Reference formula or conversion factor shown for context.