Unit converters
Illuminance Converter
Convert lux, phot, nox, and foot-candles. Nothing you enter leaves your browser.
Enter your values, then calculate.
What this tool does
About the Illuminance Converter
Convert lux, phot, nox, and foot-candles. It reports equivalent values across supported units so measurements can be compared without looking up each factor separately.
The calculation uses illuminance, and unit.
How to use it
- Review the starting values for illuminance, unit and replace them with your own.
- Choose any available units or assumptions, then select “Calculate.”
- Read the labeled result, compare another scenario if needed, and copy the output for your notes.
Practical example
Start with a known input
The workbench starts with a complete scenario: Illuminance: 500 Unit: lux Change one assumption at a time to see how it affects the result.
What to know about the result
- Results are estimates based only on the supplied values. Rounding, fees, local rules, and real-world conditions may change the final outcome.
Common questions
Using the Illuminance Converter
Is the Illuminance Converter free to use?
Yes. FormatCalc's Illuminance Converter is free to use with no account required.
Is my data private when I use the Illuminance Converter?
Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.
How do I use the Illuminance Converter?
Enter your values, select any units, and choose Calculate. You can then copy the result.
What should I check before using the result?
Results are estimates based only on the supplied values. Rounding, fees, local rules, and real-world conditions may change the final outcome.