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Illuminance converter

gigalux to hectolux

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

10,000,000

1 Glx = 10,000,000 hlx

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Conversion formula

hlx = Glx × 10,000,000

One gigalux equals 10,000,000 hectolux. Multiply your value in gigalux by this factor to get hectolux. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 gigalux:
5 × 10,000,000 = 50,000,000 hlx

Conversion table

gigalux (Glx)hectolux (hlx)
0.01100,000
0.11,000,000
110,000,000
220,000,000
550,000,000
10100,000,000
25250,000,000
50500,000,000
1001,000,000,000
100010,000,000,000

About these measurements

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

The base reference used here is the lux. One gigalux is 1,000,000,000 base units; one hectolux is 100 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 Glx to hlx?

Multiply the quantity in Glx by 10,000,000. You can also type the value into the converter above.

Can I reverse the conversion?

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