## Unit Converter

## Conversion formula

The conversion factor from feet to millimeters is 304.8, which means that 1 foot is equal to 304.8 millimeters:

1 ft = 304.8 mm

To convert 4.2 feet into millimeters we have to multiply 4.2 by the conversion factor in order to get the length amount from feet to millimeters. We can also form a simple proportion to calculate the result:

1 ft → 304.8 mm

4.2 ft → L_{(mm)}

Solve the above proportion to obtain the length *L* in millimeters:

L_{(mm)} = 4.2 ft × 304.8 mm

L_{(mm)} = 1280.16 mm

The final result is:

4.2 ft → 1280.16 mm

We conclude that **4.2 feet is equivalent to 1280.16 millimeters**:

4.2 feet = 1280.16 millimeters

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case **1 millimeter is equal to 0.00078115235595551 × 4.2 feet**.

Another way is saying that *4.2 feet is equal to 1 ÷ 0.00078115235595551 millimeters*.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that **four point two feet is approximately one thousand two hundred eighty point one six millimeters**:

4.2 ft ≅ 1280.16 mm

An alternative is also that *one millimeter is approximately zero point zero zero one times four point two feet*.

## Conversion table

### feet to millimeters chart

For quick reference purposes, below is the conversion table you can use to convert from feet to millimeters

feet (ft) | millimeters (mm) |
---|---|

5.2 feet | 1584.96 millimeters |

6.2 feet | 1889.76 millimeters |

7.2 feet | 2194.56 millimeters |

8.2 feet | 2499.36 millimeters |

9.2 feet | 2804.16 millimeters |

10.2 feet | 3108.96 millimeters |

11.2 feet | 3413.76 millimeters |

12.2 feet | 3718.56 millimeters |

13.2 feet | 4023.36 millimeters |

14.2 feet | 4328.16 millimeters |