convertimate Solar irradiance

kWh per m² per day to watts per square meter

Type a value in kWh/m²/day to get it in W/m² instantly.

41,666.67W/m²

That's 31× as bright as sunlight above the atmosphere — nothing on our list beats it. A two-square-meter panel at 20% would make about 16,670 W.

What it means

How much sun is that?

Panels are rated at 1,000 W/m², called one sun. kWh/m² per day here is averaged over 24 hours, not over daylight only.

The math

How to convert kWh/m²/day to W/m²

To convert kWh per m² per day to watts per square meter, multiply by 41.6667.

Example: 1,000 kWh/m²/day × 41.6667 = 41,666.7 W/m².

In the other direction, 1 W/m² = 0.024 kWh/m²/day.

Every unit

Your irradiance in every unit

Tables

kWh/m²/day to W/m² conversion table

kWh/m²/day to W/m² conversion table
kWh/m²/dayW/m²
50 kWh/m²/day2,083.33 W/m²
100 kWh/m²/day4,166.67 W/m²
200 kWh/m²/day8,333.33 W/m²
400 kWh/m²/day16,666.7 W/m²
600 kWh/m²/day25,000 W/m²
800 kWh/m²/day33,333.3 W/m²
1,000 kWh/m²/day41,666.7 W/m²
1,200 kWh/m²/day50,000 W/m²
1,361 kWh/m²/day56,708.3 W/m²
1,500 kWh/m²/day62,500 W/m²
W/m² to kWh/m²/day conversion table
W/m² to kWh/m²/day conversion table
W/m²kWh/m²/day
50 W/m²1.2 kWh/m²/day
100 W/m²2.4 kWh/m²/day
200 W/m²4.8 kWh/m²/day
400 W/m²9.6 kWh/m²/day
600 W/m²14.4 kWh/m²/day
800 W/m²19.2 kWh/m²/day
1,000 W/m²24 kWh/m²/day
1,200 W/m²28.8 kWh/m²/day
1,361 W/m²32.664 kWh/m²/day
1,500 W/m²36 kWh/m²/day

Quick answers

Quick answers

How many W/m² is 1 kWh/m²/day?
1 kWh/m²/day is 41.6667 W/m².
How many W/m² is 10 kWh/m²/day?
10 kWh/m²/day is 416.667 W/m².
How many W/m² is 1,000 kWh/m²/day?
1,000 kWh/m²/day is 41,666.7 W/m².

The units

About these units

kWh per m² per day (kWh/m²/day)

Peak sun hours: a whole day of sunshine as one number. 5 is a sunny climate.

Watts per square meter (W/m²)

The SI unit of irradiance. Full sun is about 1,000 W/m².

Learn more about irradiance units

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