How to use the planet equilibrium temperature calculator
Estimate the average surface temperature of a planet from sunlight received and its albedo. Enter solar constant at distance, bond albedo in the fields above; the equilibrium temperature are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “planet temperature from albedo”, “equilibrium temperature Earth”, “radiative balance temperature”, “calculate planet equilibrium temperature”, “find equilibrium temperature”.
Formula
Variables
- S — Solar constant at distance (W/m²)
- A — Bond albedo
Worked example
With solar constant at distance = 1361 W/m², bond albedo = 0.3, the calculator gives equilibrium temperature ≈ 254.5781 K; equilibrium temperature ≈ -18.57186 °C.
Frequently asked questions
What is the planet equilibrium temperature calculator used for?
Estimate the average surface temperature of a planet from sunlight received and its albedo. It helps with questions such as “planet temperature from albedo”, “equilibrium temperature Earth”, “radiative balance temperature”.
What is the formula for the planet equilibrium temperature calculation?
Equilibrium temperature (K) = ((1-A) × S / (4 × SIGMA))^0.25. Equilibrium temperature (°C) = [Equilibrium temperature]-273.15. Here S is solar constant at distance (W/m²), A is bond albedo.
What inputs do I need for the planet equilibrium temperature calculator?
You need solar constant at distance in W/m², bond albedo. 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 planet equilibrium temperature 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 planet equilibrium temperature 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.