Convert Millilumens to Microlumens
Enter the number of millilumens that you want to convert to microlumens.
How to Convert Millilumens to Microlumens
The millilumen and microlumen are both units of luminous flux. By definition, 1 millilumen equals exactly 1e12 microlumens. This means to convert millilumens to microlumens, you multiply by 1e12.
Formula
Step-by-Step Example
Convert 5 mlm to microlumens:
We need to convert millilumens to microlumens
Since 1 mlm = 1e12 μlm, multiply by 1e12
5 × 1e12 = 5e12
5 mlm = 5e12 μlm
Millilumen to Microlumen Conversion Table
Quick reference table for common millilumen to microlumen conversions. Click any value for detailed calculation.
| Millilumens (mlm) | Microlumens (μlm) |
|---|---|
| 0.1 mlm | 100000000000 μlm |
| 0.5 mlm | 500000000000 μlm |
| 1 mlm | 1e12 μlm |
| 2 mlm | 2e12 μlm |
| 5 mlm | 5e12 μlm |
| 10 mlm | 1e13 μlm |
| 25 mlm | 2.5e13 μlm |
| 50 mlm | 5e13 μlm |
| 100 mlm | 1e14 μlm |
About These Units
Millilumen (mlm)
A millilumen (mlm) equals 0.001 lumens. Used for very dim sources: indicator LEDs (1-20 mlm), phosphorescent materials, watch dial luminescence, and fiber optic output measurements. Useful for specifying minimum detectable light levels in optical sensors.
Microlumen (μlm)
A microlumen (μlm) equals 10⁻⁶ lumens. Used in laboratory photometry, bioluminescence measurements (firefly: ~0.5 μlm/flash), and extremely dim light source characterization. Required precision instrumentation for measurement.
Frequently Asked Questions
How do I convert millilumens to microlumens?
To convert millilumens to microlumens, multiply the value by 1e12. For example, 10 mlm = 1e13 μlm.
How many microlumens are in 1 millilumen?
1 millilumen equals 1e12 microlumens.
What is the formula for millilumens to microlumens?
The formula is: μlm = mlm × 1e12.