In this article I will show you how to convert 668 foot-candles into lux. Throughout the explanation below I might also call it 668 ft-cd to lx. They are the same thing!

## How to Convert Foot-candles to Lux

A foot-candle is greater than a lux. I know that a ft-cd is greater than a lx because of something called conversion factors.

Put very simply, a conversion factor is a number that can be used to change one set of units to another, by multiplying or dividing it. So when we need to convert 668 foot-candles into lux, we use a conversion factor to get the answer.

The conversion factor for ft-cd to lx is:

Now that we know what the conversion factor is, we can easily calculate the conversion of 668 ft-cd to lx by multiplying `10.7639`

by the number of foot-candles we have, which is 668.

**So, the answer to the question "what is 668 foot-candles in lux?" is 7190.2852 lx.**

## Foot-candles to Lux Conversion Table

Below is a sample conversion table for ft-cd to lx:

Foot-candles (ft-cd) | Lux (lx) |
---|---|

0.01 | 0.11 |

0.1 | 1.08 |

1 | 10.76 |

2 | 21.53 |

3 | 32.29 |

5 | 53.82 |

10 | 107.64 |

20 | 215.28 |

50 | 538.2 |

100 | 1076.39 |

1000 | 10763.9 |

## Best Conversion Unit for 668 ft-cd

Sometimes when you work with conversions from one unit to another, the numbers can get a little confusing. Especially when dealing with really large numbers.

I've also calculated what the best unit of measurement is for 668 ft-cd.

To determine which unit is best, I decided to define that as being the unit of measurement which is as low as possible, without going below 1. Smaller numbers are more easily understood and can make it easier for you to understand the measurement.

**The best unit of measurement I have found for 668 ft-cd is foot-candles and the amount is 668 ft-cd.**