# Convert feet to millimeters

Enter the number of feet you want to convert to millimeters in the text box below. The conversion to length in millimeters will update as you type.

{"answerString":"304.8","answerSymbol":"millimeters"}## Precise decimal and fraction answers

The conversion in millimeters rounded to six significant decimal places is **1 ft = 304.800000 mm.**
The precise fraction answer is **304 ^{4}/_{5} mm**.

### Decimal Precision

Conversion from one to ten decimal places

- 1 ft =
**304.8 mm** - 1 ft =
**304.80 mm** - 1 ft =
**304.800 mm** - 1 ft =
**304.8000 mm** - 1 ft =
**304.80000 mm** - 1 ft =
**304.800000 mm** - 1 ft =
**304.8000000 mm** - 1 ft =
**304.80000000 mm** - 1 ft =
**304.800000000 mm** - 1 ft =
**304.8000000000 mm**

## How many millimeters are in a foot?

There are **
304.8 millimeters in one foot**. A foot is **
304.8 times longer** than a millimeter.
A millimeter is 0.33% of a foot

## Feet to millimeters conversion factor and formulas

FormulaThe conversion factor between feet and millimeters is 304.8. This represents the ratio of millimeters per one foot. To calculate the value in millimeters, we can either multiply by the conversion factor or divide by its inverse.

### Multiplication

To convert from feet to millimeters, multiply feet by 304.8.

The formula is expressed as:

*ft × 304.8 = mm*

### Division

Alternatively we can divide by the inverse conversion factor to get the same result.

The inverse of 304.8 is 1/304.8 or 0.003.
To convert from feet to millimeters, divide feet by 0.003.

The formula is expressed as:

*ft ÷ 0.003 = mm*

## About this conversion

Converting feet to millimeters is a conversion between units from separate unit systems - feet are US Customary / UK Imperial defined units while millimeters are metric (SI) .

## About Feet

Customary/Imperial UnitThe foot is a length unit of measure within the US Customary and UK Imperial systems. It is commonly abbreviated as ft or using the ' symbol. The official definition of the foot is 0.3048 meters. Within the Imperial system, the foot is equal to 12 inches or 1/3 of a yard. The foot is very widely used within the United States in situations where nearly the rest of the world would measure in meters. Globally, the foot is used by the aviation community as the standard measurement of flight altitude eg. 35,000 feet.

## About Millimeters

SI UnitWithin the SI (metric) system of measurement, the millimeter is officially defined as one thousandth (1/1,000) of a meter. It is commonly used when measuring very short lengths. Internationally it is spelled 'millimetre' whereas the U.S. spells it 'millimeter'. The symbol for millimeters is mm.

## Reverse this conversion

Convert from millimeters to feet instead.

## 1 feet to other length units

### Metric

- 1 ft =
**3.048×10**^{-4}km - 1 ft =
**0.305 m** - 1 ft =
**3.048 dm** - 1 ft =
**30.48 cm** - 1 ft =
**304.8 mm** - 1 ft =
**304,800 µ** - 1 ft =
**3.048×10**^{8}nm

### Imperial/U.S.

- 1 ft =
**1.894×10**^{-4}mi - 1 ft =
**0.333 yd** - 1 ft =
**1 ft** - 1 ft =
**12 in**

## References and Citations

- National Institute of Standards and Technology (NIST) General Tables of Units of Measurement
- International Bureau of Weights and Measures (BIPM) The International System of Units (SI)

## Feet to millimeters conversion table

ft | mm |
---|---|

1 ft | 304.8 mm |

2 ft | 609.6 mm |

3 ft | 914.4 mm |

4 ft | 1,219.2 mm |

5 ft | 1,524 mm |

6 ft | 1,828.8 mm |

7 ft | 2,133.6 mm |

8 ft | 2,438.4 mm |

9 ft | 2,743.2 mm |

10 ft | 3,048 mm |

ft | mm |
---|---|

20 ft | 6,096 mm |

30 ft | 9,144 mm |

40 ft | 12,192 mm |

50 ft | 15,240 mm |

60 ft | 18,288 mm |

70 ft | 21,336 mm |

80 ft | 24,384 mm |

90 ft | 27,432 mm |

100 ft | 30,480 mm |

1,000 ft | 304,800 mm |

**Disclaimer:**Calculations on this site are believed to be accurate by

**answercalc.com**, however we provide no guarantee as such. Values my be rounded or computational or data inaccuracies could exist. This site accepts no responsibility for errors that may be present. Always double check calculations when relying on data for critical applications.