Conduction Rate Calculator
🔥 Heat & thermodynamics. Use the Conduction rate formula to find heat flow, conductivity k, area, temperature difference, thickness: pick the value you want, type the others, and the answer updates as you go.
k = thermal conductivity (copper ≈ 400, glass ≈ 1, wood ≈ 0.15 W/m K).
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Heat flow | W |
| Conductivity k | W/m K |
| Area | m² |
| Temperature difference | K |
| Thickness | m |
Worked example
Find the heat flow when Conductivity k = 1 W/m K, Area = 1 m², Temperature difference = 20 K, Thickness = 0.5 m.
Using Q/t = (kA Δ T)/d: Heat flow = 40 W.
Frequently asked questions
What is the formula for Conduction rate?
Q/t = (kA Δ T)/d. k = thermal conductivity (copper ≈ 400, glass ≈ 1, wood ≈ 0.15 W/m K).
What do the letters stand for, and what units are used?
Heat flow in W, Conductivity k in W/m K, Area in m², Temperature difference in K, Thickness in m.
How do you calculate heat flow?
Put the values into Q/t = (kA Δ T)/d. For example, with Conductivity k = 1 W/m K, Area = 1 m², Temperature difference = 20 K, Thickness = 0.5 m, heat flow = 40 W.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (heat flow, conductivity k, area, temperature difference, thickness) and fill in the others: it rearranges the formula for you.
