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Illuminance converter

megalux to gigalux

Convert megalux (Mlx) to gigalux (Glx). Use an editable illuminance converter, conversion formula, and reference table.

0.001

1 Mlx = 0.001 Glx

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Conversion formula

Glx = Mlx × 0.001

One megalux equals 0.001 gigalux. Multiply your value in megalux by this factor to get gigalux. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 megalux:
5 × 0.001 = 0.005 Glx

Conversion table

megalux (Mlx)gigalux (Glx)
0.010.00001
0.10.0001
10.001
20.002
50.005
100.01
250.025
500.05
1000.1
10001

About these measurements

Illuminance is luminous flux falling on a surface per unit area.

The base reference used here is the lux. One megalux is 1,000,000 base units; one gigalux is 1,000,000,000 base units.

Important distinctions

One lux is one lumen per square meter.

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 Mlx to Glx?

Multiply the quantity in Mlx by 0.001. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the gigalux to megalux 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.

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