Lux to Foot-Candle Converter
Convert lux to foot-candles instantly. Free, bidirectional, and fully in-browser.
About this tool
Lux to Foot-Candle Converter
Convert lux to foot-candles instantly. Free, bidirectional, and fully in-browser.
1 lux equals 0.09290304 foot-candles — enter any lux value to convert it to foot-candles instantly. This Lux to Foot-Candle converter is a client-side tool: it applies a single multiplication (fc = lx × 0.09290304) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert foot-candles back to lux. A reference table lists common lux values already converted, and nothing you enter is sent to a server.
How to use Lux to Foot-Candle Converter
- 1
Open Lux to Foot-Candle Converter on AltFTool — it loads instantly in your browser.
- 2
Type the value you want to convert into the Lux field.
- 3
Read the equivalent in foot-candles in the result field, and copy it if needed.
- 4
Use the decimal-places slider for more or less precision, or press swap to convert foot-candles to lux.
Why use Lux to Foot-Candle Converter
Instant, both ways
The result updates as you type, and the swap button flips the conversion to foot-candle → lux without reloading.
Exact Illuminance math
The conversion uses the precise factor (fc = lx × 0.09290304), 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 lux measurement to foot-candles for a spec, listing, or report.
- Checking lux↔foot-candle figures while comparing products, datasets, or documentation.
- Learning the lux-to-foot-candle relationship from the worked formula and the common-value table.
Frequently asked questions
How many foot-candles are in a lux?
One lux is 0.09290304 foot-candles. Multiply the lux value by 0.09290304 to convert. For example, 10 lx = 0.9290304 fc.
What is the formula to convert lux to foot-candles?
fc = lx × 0.09290304. This tool applies it automatically and shows a worked example: 10 lx = 0.9290304 fc.
Can it convert foot-candles back to lux?
Yes. Press the swap button, or type into the foot-candle field, and the tool converts foot-candles to lux using the inverse of the same relationship.
Is the conversion accurate?
It uses the standard illuminance definition (fc = lx × 0.09290304), not a rounded approximation, so results are exact to the number of decimal places you select.
Does this work offline and stay private?
Yes. The converter is a browser-side script with no network calls: your values are never uploaded, and once the page has loaded it keeps working without a connection.
Embed this tool on your site
Add the Lux to Foot-Candle Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
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