Convert Foot-candles to Kilolux (fc to klx)
1 foot-candle (fc) = 0.01076391042 kilolux (klx). 1 klx = 92.90304 fc. Example: 15 fc = 15 × 0.01076391042 = 0.1614586563 klx.
Also searched as foot-candles to klx, foot-candles in klx, foot-candles into kilolux, fc to klx, fc in kilolux, fc into kilolux, foot-candle to kilolux, fc to kilolux converter and how many kilolux in a foot-candle.
1 fc = 0.01076391042 klx
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk foot-candle to kilolux converter to paste a column from Excel.
How to Convert Foot-candle to Kilolux
- 1 fc = 0.01076391042 klx
- 1 klx = 92.90304 fc
- Example: convert 15 fc to klx: 15 fc = 15 × 0.01076391042 klx = 0.1614586563 klx
Formula
klx = fc × 0.01076391041671
or klx = fc ÷ 92.90304
Derivation from SI units:
- 1 fc = 1 lm/ft² = 1/0.09290304 lx ≈ 10.7639 lx.
- 1 klx = 10³ lx.
- 1 fc = 10.76391041671 lx ÷ 1000 lx per klx = 0.01076391041671 klx
Both units are defined exactly, so the factor is exact. Foot-candle definition: foot-candle; Kilolux definition: kilolux.
Worked examples
- A reading of 20 fc converts to 0.2152782083 klx.
20 fc × 0.01076391042 = 0.2152782083 klx - A value of 75 fc is 0.8072932813 klx.
75 fc × 0.01076391042 = 0.8072932813 klx
Foot-candle to Kilolux conversion table
| Foot-candles (fc) | Kilolux (klx) |
|---|---|
| 1 fc | 0.01076391042 klx |
| 5 fc | 0.05381955208 klx |
| 10 fc | 0.1076391042 klx |
| 20 fc | 0.2152782083 klx |
| 30 fc | 0.3229173125 klx |
| 50 fc | 0.5381955208 klx |
| 75 fc | 0.8072932813 klx |
| 100 fc | 1.076391042 klx |
| 500 fc | 5.381955208 klx |
| 1000 fc | 10.76391042 klx |
Where it's used
Foot-candles are used for US lighting design (IES recommendations), while kilolux appear in daylight and solar measurements. Both measure illuminance (light falling on a surface), so the conversion is a fixed factor.
Foot-candle to other illuminance units
| Conversion | 1 fc equals |
|---|---|
| foot-candle to kilolux | 0.01076391042 klx |
| foot-candle to lux | 10.76391042 lx |
| foot-candle to phot | 0.001076391042 ph |
| foot-candle to millilux | 10763.91042 mlx |
Frequently asked questions
How many kilolux are in 1 foot-candle?
1 fc = 0.01076391042 klx.
How do I convert foot-candles to kilolux?
Multiply the value in fc by 0.01076391042, or divide it by 92.90304. For example, 15 fc × 0.01076391042 = 0.1614586563 klx.
Is the fc to klx conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "footcandle".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Foot-candles to Kilolux (fc to klx). Retrieved October 25, 2026, from https://scientificconverters.com/illuminance/foot-candles-to-kilolux/
IEEE
Scientific Converters, "Convert Foot-candles to Kilolux (fc to klx)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/illuminance/foot-candles-to-kilolux/