21 Lux to Foot-candles
Convert 21 lux (lx) to foot-candles (fc) with formulas, examples, and conversion tables.
lx
fc
21 lx = 1.951 fc
Full precision:1.951 fc
Step-by-Step Solution
To convert 21 lux to foot-candles, we divide by 10.7639 because one foot-candle equals exactly 10.7639 lux.
1 foot-candle = 10.7639 lux
Since there are 10.7639 lux in every foot-candle, we divide our value by this factor:
21 ÷ 10.7639 = 1.951 foot-candles
So 21 lux = 1.951 foot-candles.
Quick check: 1.951 × 10.7639 = 21 lux
Lux to Foot-candles Conversion Table
| Lux | Foot-candles |
|---|---|
| 1 lx | 0.092903 fc |
| 2 lx | 0.18581 fc |
| 3 lx | 0.27871 fc |
| 4 lx | 0.37161 fc |
| 5 lx | 0.46452 fc |
| 10 lx | 0.92903 fc |
| 20 lx | 1.8581 fc |
| 21 lx | 1.951 fc |
| 50 lx | 4.6452 fc |
| 100 lx | 9.2903 fc |
21 Lux in Other Units
| Unit | 21 lx = |
|---|---|
| Lux to Foot-candles | 1.951 fc |
| Lux to Phot | 0.0021 ph |
| Lux to Nox | 21000 nx |
| Lux to Kilolux | 0.021 klx |
| Lux to Millilux | 21000 mlx |
| Lux to lm/m² | 21 lm/m² |
| Lux to lm/cm² | 0.0021 lm/cm² |