Thermal Conductivity Calculator Heat FluxBy Admin / November 13, 2025 Thermal Conductivity Calculator (Heat Flux) Enter any 3 values to calculate the missing variable Thermal Conductivity W/m·K BTU/(ft·h·°F) Change in Temperature (ΔT) K °C °F Change in Distance m cm ft in Heat Flux W/m² BTU/(ft²·h) Calculate Reset