gigalux to petalux
Convert gigalux (Glx) to petalux (Plx). Use an editable illuminance converter, conversion formula, and reference table.
1 Glx = 0.000001 Plx
Conversion formula
One gigalux equals 0.000001 petalux. Multiply your value in gigalux by this factor to get petalux. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 gigalux:5 × 0.000001 = 0.000005 Plx
Conversion table
| gigalux (Glx) | petalux (Plx) |
|---|---|
| 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
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 petalux is 1e+15 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 Plx?
Multiply the quantity in Glx 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 petalux 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.
