Convert feet to mm
Please provide values below to convert foot [ft] to millimeter [mm].
Foot (ft)
The foot (ft) is a non-SI unit of length used primarily in the United States, Canada, and the UK. It is defined as exactly 0.3048 meters (30.48 cm). The foot is commonly divided into 12 inches.
Conversion Foot to Other Units:
- 1 foot = 12 inches (in)
- 1 foot = 30.48 centimeters (cm)
- 1 foot = 0.3048 meters (m)
- 1 foot = 0.000189394 miles (mi)
- 1 foot ≈ 0.333 yards (yd)
Where is Foot (ft) Used?
The foot (ft) is commonly used in countries like the United States, Canada, and the United Kingdom for various measurements. It is widely used in construction to measure room dimensions, building heights, and materials; in aviation, where altitudes are typically measured in feet (e.g., 30,000 feet); in sports, to measure courts and fields (e.g., basketball courts and football fields); in real estate to calculate square footage of homes or land; and for human height, where it is commonly expressed in feet and inches (e.g., 5'9" for height). Despite the global trend toward the metric system, the foot remains an essential unit in these areas.
Historical Origin of the Foot:
The foot has ancient origins, dating back to the Romans and Greeks.It was originally based on the length of a human foot. Various countries had different definitions of the foot until the international standard of 0.3048 meters was adopted in 1959.
Millimeter (mm)
Definition: A millimeter (mm) is a unit of length in the metric system, commonly used for measuring small objects and precise dimensions. It is widely used in engineering, manufacturing, science, and everyday life.
1 millimeter =
0.001 meters (m)
0.1 centimeters (cm)
1,000 micrometers (µm)
1,000,000 nanometers (nm)
0.03937 inches (in)
Conversion Millimeter to Other Units:
- 10 mm = 1 cm
- 100 mm = 10 cm = 0.1 m
- 1,000 mm = 1 meter (m)
- 25.4 mm = 1 inch
Where is a Millimeter Used?
A millimeter (mm) is a very small unit of length, commonly used in fields requiring precision. It is especially useful for measuring objects that are too small for centimeters but too large for micrometers.
- Engineering & Manufacturing: Used for precise measurements of small components.
- Medicine: Used in medical tools and measurements (e.g., syringe needle sizes).
- Science & Microscopy: Helps measure small biological structures.
- Daily Life: Used in measuring jewelry, screws, phone thickness, etc.
What Can Be Measured with a Millimeter?
1. Science & Medicine:
- Medical tools & devices – Needle thickness, surgical instruments
- Biology – Cell sizes (although smaller units like micrometers are more common)
- Physics & Chemistry – Measuring wavelengths, thin films, or crystal structures
2. Engineering & Manufacturing:
- Machinery components – Screws, bolts, nuts, gears
- Electronics – Circuit boards, chip components, wire diameters
- Automotive industry – Tolerances in engine parts, brake pads
3. Construction & Architecture:
- Furniture & interior design – Cabinet gaps, door frame precision
- Glass cutting – Window and mirror thickness
- Flooring & tiling – Tile spacing, wood thickness
4. Daily Life Objects:
- Paper thickness – Standard printer paper is about 0.1 mm thick
- Credit card thickness – About 0.76 mm
- Jewelry measurements – Ring sizes, gemstone settings
- Hair thickness – Human hair is about 0.04–0.1 mm
5. Technology & Gadgets:
- Smartphones & laptops – Device thickness (e.g., an iPhone is around 7 mm thick)
- Camera lenses – Precision focus adjustments
Foot to Millimeter Conversion Table
| Foot [ft] | Millimeter [mm] |
|---|---|
| 0.01 ft | 3.048 mm |
| 0.1 ft | 30.48 mm |
| 1 ft | 304.8 mm |
| 2 ft | 609.6 mm |
| 3 ft | 914.4 mm |
| 4 ft | 1219.2 mm |
| 5 ft | 1524 mm |
| 6 ft | 1828.8 mm |
| 7 ft | 2133.6 mm |
| 8 ft | 2438.4 mm |
| 9 ft | 2743.2 mm |
| 10 ft | 3048 mm |
| 20 ft | 6096 mm |
| 50 ft | 15240 mm |
| 100 ft | 30480 mm |
| 1000 ft | 304800 mm |
How to Convert Foot to Millimeter
1 ft = 304.8 mm
1 mm = 0.0032808399 ft
Example: convert 15 ft to mm:
15 ft = 15 × 304.8 mm = 4572 mm