lumen to megalumen
Convert lumen (lm) to megalumen (Mlm). Use an editable luminous flux converter, conversion formula, and reference table.
1 lm = 0.000001 Mlm
Conversion formula
One lumen equals 0.000001 megalumen. Multiply your value in lumen by this factor to get megalumen. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 lumen:5 × 0.000001 = 0.000005 Mlm
Conversion table
| lumen (lm) | megalumen (Mlm) |
|---|---|
| 0.01 | 1e-8 |
| 0.1 | 1e-7 |
| 1 | 0.000001 |
| 2 | 0.000002 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 25 | 0.000025 |
| 50 | 0.00005 |
| 100 | 0.0001 |
| 1000 | 0.001 |
About these measurements
Luminous flux measures the visible-light output weighted by human visual sensitivity.
The base reference used here is the lumen. One lumen is 1 base units; one megalumen is 1,000,000 base units.
Important distinctions
Lumens measure light output; lux measures illumination per unit area.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert lm to Mlm?
Multiply the quantity in lm by 0.000001. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the megalumen to lumen converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
