Convert Gigalumens to Lumens
Convert Gigalumens (Glm) to Lumens (lm) instantly and accurately.
Conversion Formula
lm = Glm × 1000000000
About Gigalumens
The gigalumen (Glm) equals 10⁹ lm. The scale for very large lighting installations and for theoretical comparisons: a large airport apron illuminated to 30 lx over 1 km² would require approximately 30 Glm of total installed luminous flux. The full-disk luminous flux of the Sun is approximately 3.6 × 10²⁸ lm. 1 Glm = 10⁹ lm.
About Lumens
The lumen (lm) is the SI derived unit of luminous flux, equal to 1 cd·sr. A standard wax candle emits approximately 12 lm total; a 40 W incandescent bulb about 450 lm; the common 800 lm LED lamp is the direct replacement for a 60 W incandescent. Defined since 2019 SI by fixing K_cd = 683 lm/W at 540 THz. 1 lm = 1 cd·sr.
Quick Reference Table
| Gigalumens (Glm) | Lumens (lm) |
|---|---|
| 1 Glm | 1000000000 lm |
| 2 Glm | 2 × 109 lm |
| 5 Glm | 5 × 109 lm |
| 10 Glm | 1 × 1010 lm |
| 25 Glm | 2.5 × 1010 lm |
| 50 Glm | 5 × 1010 lm |
| 100 Glm | 1 × 1011 lm |