Convert feet to millimeters using this quick and accurate calculator.
Do you want to convert feet to millimeters? Whether you're working on a construction project, measuring object sizes, or studying for school or exams, converting feet to mm is essential when moving between imperial and metric systems. In this complete guide, you’ll find the feet to mm formula, real-world examples, conversion charts, practical applications, and even how to use a feet to mm calculator for fast and accurate results.
A foot is an imperial unit of length commonly used in the United States, the UK, and Canada for measuring height, length, and distance. It's often used in construction, real estate, sports, and aviation.
A millimeter is a metric unit of length. It’s part of the International System of Units (SI) and is commonly used worldwide to measure very small lengths, like thickness, diameter, and precision components.
To convert feet to millimeters, multiply the number of feet by 304.8.
Formula: Millimeters = Feet × 304.8
Because 1 foot = 12 inches, and 1 inch = 25.4 mm, multiplying gives:
12 × 25.4 = 304.8 mm in 1 foot.
5.75 × 304.8 = 1,753.6 mm
| Feet (ft) | Millimeters (mm) |
|---|---|
| 1 | 304.8 |
| 2 | 609.6 |
| 3 | 914.4 |
| 4 | 1,219.2 |
| 5 | 1,524 |
| 6 | 1,828.8 |
| 7 | 2,133.6 |
| 8 | 2,438.4 |
| 9 | 2,743.2 |
| 10 | 3,048 |
For quick and accurate results, use our Feet to mm Calculator. Enter your value in feet, click "Convert", and get the result instantly in millimeters.
This tool is useful for:
Engineers use millimeters for fine measurements. Converting feet to mm helps standardize measurements across global projects.
Products are often designed in mm for better precision, especially in mechanical and industrial design. If your base dimensions are in feet, conversion is essential.
3D printers and modeling software typically use millimeters. Knowing how to convert feet to mm ensures accurate modeling and scaling.
Blueprints and site plans often require mm precision. Architects may receive measurements in feet, but convert them into mm for consistency in metric regions.
To convert mm back to feet:
Feet = Millimeters ÷ 304.8
Example: 914.4 mm ÷ 304.8 = 3 feet
1 foot = 304.8 millimeters
5 × 304.8 = 1,524 mm
6.75 × 304.8 = 2,058.6 mm
Millimeters offer higher precision and are standard in scientific, engineering, and industrial fields across the globe.
Yes, though centimeters are more common for height, millimeters are used in professional measurements.
Converting feet to millimeters is essential in many professional and educational contexts. The conversion is simple using the formula mm = ft × 304.8. Whether you’re working on home repairs, product design, or academic assignments, accurate conversions help ensure proper scaling, compatibility, and professionalism. Use our conversion chart or calculator tool to simplify your workflow.
Feet, symbolized as ft, are one of the most recognized and widely used units of length in the world, especially in the United States, Canada, and the United Kingdom. Despite the global adoption of the metric system, feet remain a vital measurement unit in construction, aviation, sports, and everyday life. This guide covers everything you need to know about feet as a unit—definition, conversions, history, applications, formulas, and real-world examples.
A foot (plural: feet) is a unit of length in the Imperial and U.S. customary measurement systems. One foot is equivalent to:
The symbol for foot is ft, and the abbreviation for inch is in. For example, a person may say they are "6 feet tall" or "6 ft."
The foot has ancient origins and was originally based on the average length of a human foot. Different civilizations had their own versions of the "foot" as a unit of measurement—Egyptians, Greeks, and Romans all used it with slightly varying lengths.
Standardization came in 1959 when the United States and countries of the Commonwealth agreed on the international foot:
1 international foot = 0.3048 meters
Understanding how the foot relates to other units of length is essential, especially in engineering, construction, and international conversions.
Here are some useful formulas for converting feet into other units:
feet × 12 = inchesfeet × 30.48 = cmfeet × 0.3048 = metersfeet ÷ 3 = yardsFeet and meters are often compared, especially in international measurements. While meters are part of the metric system and used globally, feet are part of the Imperial system.
This makes feet shorter than a meter. For example, a 10-meter-long object would be about 32.8 feet.
In the United States and Canada, people commonly report height in feet and inches, such as "5 feet 10 inches" or "5'10".
Feet are frequently used in architectural blueprints, home layouts, and construction work. Room sizes, door heights, and pipe lengths are measured in feet.
In aviation, altitude is measured in feet. For example, a commercial plane might cruise at 35,000 feet above sea level.
Sports fields are often measured in feet—basketball courts, baseball diamonds, and football fields all use feet for measurement.
Square footage, used to measure the area of a home or office, is based on feet (square feet or ft²).
In math problems, feet are often used to calculate length, area, and volume:
Feet are measured using various tools depending on the precision needed:
There are 5,280 feet in one mile.
Yes, 6 feet is considered tall in most countries. It equals 72 inches or approximately 183 centimeters.
A square foot (ft²) is a unit of area equal to a square that is one foot on each side. It is commonly used to measure floor space.
Just multiply the number of feet by 12. For example, 5 feet = 5 × 12 = 60 inches.
Despite the rise of the metric system, feet remain a core measurement unit in digital applications, CAD designs, 3D modeling, and even e-commerce where product dimensions are listed in feet or inches for North American audiences.
| Feet | Inches | Centimeters | Meters |
|---|---|---|---|
| 1 ft | 12 in | 30.48 cm | 0.3048 m |
| 2 ft | 24 in | 60.96 cm | 0.6096 m |
| 3 ft | 36 in | 91.44 cm | 0.9144 m |
| 5 ft | 60 in | 152.4 cm | 1.524 m |
| 6 ft | 72 in | 182.88 cm | 1.8288 m |
| 10 ft | 120 in | 304.8 cm | 3.048 m |
The foot is a practical and historic unit of length that continues to be used in many parts of the world for daily life, professional fields, and industrial applications. Whether you're measuring height, designing a building, or booking a real estate property, feet offer a clear and consistent way to express length and distance.
Need quick and accurate conversions? Try our online Feet to Centimeters, Feet to Meters, or Feet to Inches calculator tools to simplify your measurements!