How to use the convective heat transfer calculator
Find the heat carried away by a fluid flowing over a surface at a temperature difference. Enter heat transfer coefficient, surface area, temperature difference in the fields above; the heat transfer rate are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “Newton cooling heat rate”, “heat transfer coefficient”, “convection power”, “calculate convective heat transfer”, “find heat transfer rate”.
Formula
Variables
- h — Heat transfer coefficient (W/(m²·K))
- A — Surface area (m²)
- dT — Temperature difference (K)
Worked example
With heat transfer coefficient = 25 W/(m²·K), surface area = 2 m², temperature difference = 30 K, the calculator gives heat transfer rate ≈ 1,500 W; heat transfer rate ≈ 1.5 kW.
Frequently asked questions
What is the convective heat transfer calculator used for?
Find the heat carried away by a fluid flowing over a surface at a temperature difference. It helps with questions such as “Newton cooling heat rate”, “heat transfer coefficient”, “convection power”.
What is the formula for the convective heat transfer calculation?
Heat transfer rate (W) = h × A × dT. Heat transfer rate (kW) = [Heat transfer rate] / 1000. Here h is heat transfer coefficient (W/(m²·K)), A is surface area (m²), dT is temperature difference (K).
What inputs do I need for the convective heat transfer calculator?
You need heat transfer coefficient in W/(m²·K), surface area in m², temperature difference in K. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the convective heat transfer calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the convective heat transfer result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.