Solar luminosities to watts
Type a value in L☉ to get it in W instantly.
3.828×10²⁶W
That's about the same as the Sun. That would run about 1.276×10¹⁴ of the world’s electricity grids.
Convert the other way: W to L☉
What it means
How much light is that?
This is bolometric luminosity: all the radiation, not just visible light. A cool red star emits most of its output in infrared.
The math
How to convert L☉ to W
To convert solar luminosities to watts, multiply by 3.828×10²⁶.
Example: 1 L☉ × 3.828×10²⁶ = 3.828×10²⁶ W.
In the other direction, 1 W = 2.612×10⁻²⁷ L☉.
Every unit
Your luminosity in every unit
Tables
L☉ to W conversion table
| L☉ | W |
|---|---|
| 0.0001 L☉ | 3.828×10²² W |
| 0.01 L☉ | 3.828×10²⁴ W |
| 0.1 L☉ | 3.828×10²⁵ W |
| 1 L☉ | 3.828×10²⁶ W |
| 10 L☉ | 3.828×10²⁷ W |
| 100 L☉ | 3.828×10²⁸ W |
| 10,000 L☉ | 3.828×10³⁰ W |
| 1,000,000 L☉ | 3.828×10³² W |
| 1×10⁹ L☉ | 3.828×10³⁵ W |
| 1×10¹² L☉ | 3.828×10³⁸ W |
W to L☉ conversion table
| W | L☉ |
|---|---|
| 0.0001 W | 2.612×10⁻³¹ L☉ |
| 0.01 W | 2.612×10⁻²⁹ L☉ |
| 0.1 W | 2.612×10⁻²⁸ L☉ |
| 1 W | 2.612×10⁻²⁷ L☉ |
| 10 W | 2.612×10⁻²⁶ L☉ |
| 100 W | 2.612×10⁻²⁵ L☉ |
| 10,000 W | 2.612×10⁻²³ L☉ |
| 1,000,000 W | 2.612×10⁻²¹ L☉ |
| 1×10⁹ W | 2.612×10⁻¹⁸ L☉ |
| 1×10¹² W | 2.612×10⁻¹⁵ L☉ |
Quick answers
Quick answers
- How many W is 1 L☉?
- 1 L☉ is 3.828×10²⁶ W.
- How many W is 10 L☉?
- 10 L☉ is 3.828×10²⁷ W.
The units
About these units
Solar luminosities (L☉)
The Sun’s output, 3.83 × 10²⁶ W.
Watts (W)
The SI unit, needing scientific notation out here.
Keep going