Convert Feet to Millimeters

1 ft = 304.8 mm

1 ft = 304.8 mm

feet (ft) millimeters (mm)
0.5 152.4
1 304.8
2 609.6
5 1524
10 3048
25 7620
50 15240
100 30480
250 76200
500 152400
1000 304800

To convert feet to millimeters, multiply the value by the conversion factor:

1 ft = 304.8 mm

For example: 10 ft = 3048 mm

The Conversion Formula

To convert feet to millimeters, multiply the value by the conversion factor: 1 ft = 304.8 mm. For a worked example, suppose you need to convert 25 ft to millimeters: 25 × 304.8 = 7620 mm. To convert in the opposite direction, divide by 304.8, or equivalently multiply by 0.00328084.

About feet

The foot is one of the most intuitive ancient units, originally based on the length of a human foot. Almost every culture had its own version, from the Greek 'pous' to the Roman 'pes'. The standardization of the foot was crucial for trade and construction. Today, the International Foot is defined as exactly 0.3048 meters. It remains the dominant unit for aviation altitude worldwide, even in metric-dominant countries. feet are commonly used in Human height (US/UK/Canada), Aviation altitude (worldwide), Real estate square footage, and Lumber length, Boat length.

A standard subway sandwich is nominally 1 foot long.

About millimeters

The millimeter (mm) is the standard unit for engineering and manufacturing precision. Defined as one thousandth of a meter, it allows for accurate specifications without resorting to fractions. In the late 19th century, the adoption of the millimeter in industrial design helped standardize interchangeable parts, a key driver of modern mass production. It is also the standard for reporting rainfall in meteorology. millimeters are commonly used in Engineering blueprints, Smartphone dimensions, Jewelry sizing, and Medical instruments, Meteorology (rainfall).

A standard credit card is 0.76 mm thick.

When Would You Convert feet to millimeters?

Converting between feet and millimeters is one of the most common length conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 ft = 304.8 mm) memorized or bookmarked can save time in professional and everyday contexts alike.