Lumen per Square Foot (lm/ft²)
Lumen per square foot equals 10.7639104167 lux — numerically identical to foot-candle.
Lumen per square foot is interchangeable with foot-candle in US lighting calculations and specifications.
Lumen per Square Foot to Foot-Candle
Convert lumen per square foot to foot-candle instantly. Type in either field — results update live.
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illumination Lumen per Square Foot Foot-Candle
1 lumen per square foot = 1 foot-candle
Unit
Unit
Conversion table
Selected lm/ft² values converted to fc using the exact factor from this tool.
| lm/ft² | fc |
|---|---|
| 0.01 | 0.01 |
| 0.1 | 0.1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 5 | 5 |
| 10 | 10 |
| 20 | 20 |
| 50 | 50 |
| 100 | 100 |
| 1,000 | 1,000 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 lm/ft² = 1 fc
1 fc = 1 lm/ft²
To convert lumen per square foot to foot-candle, multiply by 1.
To convert foot-candle to lumen per square foot, multiply by 1.
Example: convert 10 lm/ft² to fc
10 × 1 = 10 fc
About these units
Short background on the units used in this conversion.
Foot-Candle (fc)
The foot-candle (fc) equals 10.7639104167 lux — one lumen per square foot, the common US illuminance unit.
Foot-candles appear in US architectural lighting specs, real-estate listings, and OSHA workplace lighting guidance.
Frequently asked questions
How many foot-candles are in one lumen per square foot?
One lumen per square foot equals 1 foot-candles. Multiply your lumen per square foots value by 1 to convert to foot-candles.
What is the conversion formula?
fc = lm/ft² × 1The reverse is
lm/ft² = fc × 1, using the same exact factors as this converter.Is this Lumen per Square Foot to Foot-Candle converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.