Heat Transfer Coefficient Calculator
Compute heat transfer Q = h·A·ΔT and thermal resistance.
Input Data
Heat Transfer Coeff W Per M2K
W/(m²·K)
Area M2
m²
Temp Diff K
K
Results
Q = hAΔT.
400W
In kW.
0.4kW
R_th = 1/(hA).
0.05K/W
At a glance:Q = h·A·ΔT; R_th = 1/(hA). Complements heat-transfer-rate and thermal-conductivity.
Formula
Q = h·A·ΔT.
$$Q = h A \Delta T, \quad R_{th} = \frac{\Delta T}{Q} = \frac{1}{hA}, \quad Nu = \frac{hL}{k}, \quad Re = \frac{\rho v L}{\mu}$$How to Use
- Enter h, area and ΔT.
- The tool returns Q and resistance.
Case Studies
h=10, A=2, ΔT=20
Q = 400 W, R_th=0.025 K/W.
FAQ
h units?
W/(m²·K); larger h means faster convection.
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.