Convert Lumen to Gigalumen
Enter the number of lumens that you want to convert to gigalumens.
How to Convert Lumens to Gigalumens
The lumen and gigalumen are both units of luminous flux. By definition, 1 gigalumen equals exactly 1000000000 lumens. This means to convert lumens to gigalumens, you divide by 1000000000.
Formula
Step-by-Step Example
Convert 5 lm to gigalumens:
We need to convert lumens to gigalumens
Since 1 Glm = 1000000000 lm, divide by 1000000000
5 ÷ 1000000000 = 5e-9
5 lm = 5e-9 Glm
Lumen to Gigalumen Conversion Table
Quick reference table for common lumen to gigalumen conversions. Click any value for detailed calculation.
| Lumens (lm) | Gigalumens (Glm) |
|---|---|
| 0.1 lm | 1e-10 Glm |
| 0.5 lm | 5e-10 Glm |
| 1 lm | 1e-9 Glm |
| 2 lm | 2e-9 Glm |
| 5 lm | 5e-9 Glm |
| 10 lm | 1e-8 Glm |
| 25 lm | 2.5e-8 Glm |
| 50 lm | 5e-8 Glm |
| 100 lm | 1e-7 Glm |
About These Units
Lumen (lm)
The lumen (lm) is the SI unit of luminous flux, measuring total visible light output from a source. Common bulb outputs: 40W incandescent ≈ 450 lm, 60W equivalent LED ≈ 800 lm, 100W equivalent ≈ 1,600 lm. Projector: 3,000-10,000 lm. One lumen = one candela × one steradian.
Gigalumen (Glm)
A gigalumen (Glm) equals 10⁹ lumens. Theoretical scale for astronomical measurements. The Sun outputs approximately 3.8×10²⁸ lumens (38 quadrillion gigalumens). Used only in astrophysical contexts comparing stellar luminosity.
Frequently Asked Questions
How do I convert lumens to gigalumens?
To convert lumens to gigalumens, divide the value by 1000000000. For example, 10 lm = 1e-8 Glm.
How many gigalumens are in 1 lumen?
1 lumen equals 1e-9 gigalumens.
What is the formula for lumens to gigalumens?
The formula is: Glm = lm ÷ 1000000000.