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The formula to calculate Lux (lx) from Footcandles (fc) is:
\[ E_v (\text{lx}) = E_v (\text{fc}) \times 10.76391 \]
Where:
Footcandles (fc) is a unit of illuminance, representing the amount of light that hits a surface. Lux (lx) is also a unit of illuminance. The conversion from footcandles to lux is straightforward, as 1 footcandle is equal to 10.76391 lux.
Let's assume the following value:
Using the formula to calculate Lux (lx):
\[ E_v = 50 \times 10.76391 \]
\[ E_v = 538.20 \text{ lx} \]
The Illuminance (lx) is 538.20 lx.
| Footcandles (fc) | Lux (lx) |
|---|---|
| 1 | 10.764 |
| 2 | 21.528 |
| 3 | 32.292 |
| 4 | 43.056 |
| 5 | 53.820 |
| 6 | 64.583 |
| 7 | 75.347 |
| 8 | 86.111 |
| 9 | 96.875 |
| 10 | 107.639 |
| 11 | 118.403 |
| 12 | 129.167 |
| 13 | 139.931 |
| 14 | 150.695 |
| 15 | 161.459 |
| 16 | 172.223 |
| 17 | 182.986 |
| 18 | 193.750 |
| 19 | 204.514 |
| 20 | 215.278 |
| 21 | 226.042 |
| 22 | 236.806 |
| 23 | 247.570 |
| 24 | 258.334 |
| 25 | 269.098 |
| 26 | 279.862 |
| 27 | 290.626 |
| 28 | 301.389 |
| 29 | 312.153 |
| 30 | 322.917 |
| 31 | 333.681 |
| 32 | 344.445 |
| 33 | 355.209 |
| 34 | 365.973 |
| 35 | 376.737 |
| 36 | 387.501 |
| 37 | 398.265 |
| 38 | 409.029 |
| 39 | 419.792 |
| 40 | 430.556 |
| 41 | 441.320 |
| 42 | 452.084 |
| 43 | 462.848 |
| 44 | 473.612 |
| 45 | 484.376 |
| 46 | 495.140 |
| 47 | 505.904 |
| 48 | 516.668 |
| 49 | 527.432 |
| 50 | 538.196 |
| 51 | 548.959 |
| 52 | 559.723 |
| 53 | 570.487 |
| 54 | 581.251 |
| 55 | 592.015 |
| 56 | 602.779 |
| 57 | 613.543 |
| 58 | 624.307 |
| 59 | 635.071 |
| 60 | 645.835 |
| 61 | 656.599 |
| 62 | 667.362 |
| 63 | 678.126 |
| 64 | 688.890 |
| 65 | 699.654 |
| 66 | 710.418 |
| 67 | 721.182 |
| 68 | 731.946 |
| 69 | 742.710 |
| 70 | 753.474 |
| 71 | 764.238 |
| 72 | 775.002 |
| 73 | 785.765 |
| 74 | 796.529 |
| 75 | 807.293 |
| 76 | 818.057 |
| 77 | 828.821 |
| 78 | 839.585 |
| 79 | 850.349 |
| 80 | 861.113 |
| 81 | 871.877 |
| 82 | 882.641 |
| 83 | 893.405 |
| 84 | 904.168 |
| 85 | 914.932 |
| 86 | 925.696 |
| 87 | 936.460 |
| 88 | 947.224 |
| 89 | 957.988 |
| 90 | 968.752 |
| 91 | 979.516 |
| 92 | 990.280 |
| 93 | 1,001.044 |
| 94 | 1,011.808 |
| 95 | 1,022.571 |
| 96 | 1,033.335 |
| 97 | 1,044.099 |
| 98 | 1,054.863 |
| 99 | 1,065.627 |
| 100 | 1,076.391 |