About this tool

Foot-candle to Lux Converter

Convert foot-candles to lux instantly. Free, bidirectional, and fully in-browser.

1 foot-candle equals 10.76391042 lux — enter any foot-candle value to convert it to lux instantly. This Foot-candle to Lux converter is a client-side tool: it applies a single multiplication (lx = fc × 10.76391042) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert lux back to foot-candles. A reference table lists common foot-candle values already converted, and nothing you enter is sent to a server.

How to use Foot-candle to Lux Converter

1. 1

   Open Foot-candle to Lux Converter on AltFTool — it loads instantly in your browser.

2. 2

   Type the value you want to convert into the Foot-candle field.

3. 3

   Read the equivalent in lux in the result field, and copy it if needed.

4. 4

   Use the decimal-places slider for more or less precision, or press swap to convert lux to foot-candles.

Why use Foot-candle to Lux Converter

• Instant, both ways

  The result updates as you type, and the swap button flips the conversion to lux → foot-candle without reloading.

• Exact Illuminance math

  The conversion uses the precise factor (lx = fc × 10.76391042), so the number matches a manual calculation to the decimal places you choose.

• Adjustable precision

  A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.

• Private and free

  Everything runs locally in your browser — no upload, no account, no limit on conversions.

Common use cases

• Converting a foot-candle measurement to lux for a spec, listing, or report.
• Checking foot-candle↔lux figures while comparing products, datasets, or documentation.
• Learning the foot-candle-to-lux relationship from the worked formula and the common-value table.

Frequently asked questions