Foot-candles to Lux

Snapshot

1 Foot-candle equals 10.76391 Lux. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.

Reference basis: This conversion uses exact lux-based illuminance definitions.
Example: For 10 Foot-candles, the result equals 107.639104 Lux.
Use the reverse page if you need the opposite direction with the same basis.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Converter Calculator

10.76391 Lux (lx)

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Explanation

Formula: Lux = Foot-candles × 10.76391. Why: this is a cross-system illuminance conversion. The calculator normalizes the value through lux, then applies the exact target-unit constant for consistent lighting and exposure work.

Foot-candles (fc): an imperial illuminance unit based on lumens per square foot, common in lighting design, building standards, and photographic exposure references.

Lux (lx): the SI derived unit of illuminance, equal to one lumen incident on one square meter of surface area.

This route is useful when translating illuminance values between lux-based and foot-candle scales for architectural lighting, workplace standards, and exposure measurements.

This conversion is purely multiplicative because both units reduce through lux using fixed illuminance definitions with no offset.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Foot-candle = 10.76391 Lux (using exact lux-based illuminance definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Foot-candles (fc)	Lux (lx)
1	10.76391
10	107.639104
50	538.195521
100	1,076.391042
300	3,229.173125
500	5,381.955208
1,000	10,763.910417
10,000	107,639.104167

Frequently Asked Questions

What is 1 foot-candle in lux?

1 Foot-candle equals 10.76391 Lux on this page.

Does this Foot-candles to Lux page use the fixed lux equivalent for foot-candles?

Yes. Foot-candle routes use one fixed lux equivalent on this page, so architectural lighting and exposure values stay aligned across the direct answer, calculator, and table.

When would I convert foot-candles to lux?

This route is useful when translating illuminance values between lux-based and foot-candle scales for architectural lighting, workplace standards, and exposure measurements.

How do I reverse Foot-candles to Lux?

Use the mirror Lux to Foot-candles route; it applies the inverse relationship with the same illuminance assumptions.