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Illuminance converter

megalux to decalux

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

100,000

1 Mlx = 100,000 dalx

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Conversion formula

dalx = Mlx × 100,000

One megalux equals 100,000 decalux. Multiply your value in megalux by this factor to get decalux. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 megalux:
5 × 100,000 = 500,000 dalx

Conversion table

megalux (Mlx)decalux (dalx)
0.011,000
0.110,000
1100,000
2200,000
5500,000
101,000,000
252,500,000
505,000,000
10010,000,000
1000100,000,000

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 decalux is 10 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 dalx?

Multiply the quantity in Mlx by 100,000. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the decalux 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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