Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Solar Energy
Solar Panel Area Calculator
Calculate the roof or ground area required for a target solar capacity given panel efficiency and local solar irradiance. Use it during early system planning to confirm available space supports the target system size.
Fill in the required fields to see your result.
Solar Energy
Solar Panel Output Calculator
Calculate the daily energy output (kWh) of a solar panel from its rated wattage, daily peak-sun hours, and efficiency. Use it during system sizing or to estimate production from a specific panel under your local sunlight conditions.
Fill in the required fields to see your result.
Key differences
| Solar Panel Area Calculator | Solar Panel Output Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Inputs required | 3 | 3 |
| Result | Required Roof Area (m²) | Daily Energy Output (kWh) |
| What it does | Calculate the roof or ground area required for a target solar capacity given panel efficiency and local solar irradiance. Use it during early system planning to confirm available space supports the target system size. | Calculate the daily energy output (kWh) of a solar panel from its rated wattage, daily peak-sun hours, and efficiency. Use it during system sizing or to estimate production from a specific panel under your local sunlight conditions. |