---
title: "Feet to Millimeters — ft to mm converter"
description: "1 foot = 304.8 millimeters. Convert feet to millimeters with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/feet-to-mm/
site: "At One Place"
---

# Feet to millimeters

**1 foot in millimeters: 1 ft = 304.8 mm**

mm = ft × 304.8

To convert feet to millimeters, multiply by 304.8. The table below gives the values people look up most often, and the converter works for any number.

## Feet to millimeters table

*Common foot values converted to millimeters.*

| Feet | Millimeters |
| --- | --- |
| 1 ft | 304.8 |
| 2 ft | 609.6 |
| 3 ft | 914.4 |
| 4 ft | 1,219.2 |
| 5 ft | 1,524 |
| 10 ft | 3,048 |
| 15 ft | 4,572 |
| 20 ft | 6,096 |
| 25 ft | 7,620 |
| 30 ft | 9,144 |
| 40 ft | 12,192 |
| 50 ft | 15,240 |
| 75 ft | 22,860 |
| 100 ft | 30,480 |
| 250 ft | 76,200 |
| 500 ft | 152,400 |
| 1,000 ft | 304,800 |

## How the conversion works

The relationship is mm = ft × 304.8. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

> Foot: Plural is "feet".

## Common questions

### How many millimeters are in one foot?

One foot equals 304.8 millimeters. mm = ft × 304.8.

### How do you convert feet to millimeters?

Use mm = ft × 304.8. So 10 ft is 3,048 mm.

### How many feet are in one millimeter?

One millimeter equals 0.0032808 feet, which is the reverse of the conversion above.

### Is there more than one kind of foot?

Plural is "feet".

## Related pages

- [Millimeters to Feet](https://atoneplace.net/convert/mm-to-feet/)
- [Feet to Meters](https://atoneplace.net/convert/feet-to-meters/)
- [Feet to Kilometers](https://atoneplace.net/convert/feet-to-km/)
- [Feet to Centimeters](https://atoneplace.net/convert/feet-to-cm/)
- [Feet to Miles](https://atoneplace.net/convert/feet-to-miles/)
- [Feet to Yards](https://atoneplace.net/convert/feet-to-yards/)
- [Feet to Inches](https://atoneplace.net/convert/feet-to-inches/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)