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Convert Length from Foot to Millimeter (ft to mm)
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Foot to Millimeter Conversion Formula
To convert from Foot (ft) to Millimeter (mm), use the following formula:
With is the ratio between the base units Meter (m) and Foot (ft).
Example
Let's convert 5 Foot (ft) to Millimeter (mm).
Using the formula:
Therefore, 5 Foot (ft) is equal to Millimeter (mm).
What is a Foot (ft)?
The foot (ft) is a standard unit of length in the Imperial and U.S. customary systems of measurement.
The plural form is feet.
How Many Inches Make a Foot?
There are exactly 12 inches in a foot.
This fundamental conversion is the cornerstone of the Imperial and U.S. customary systems. It's a standard used everywhere, from measuring personal height to completing construction projects.
Additionally, it's helpful to know that 3 feet make one yard.
The History of the Foot Measurement
The origin of the "foot" as a unit of measurement is quite literal—it was historically based on the average length of a human foot.
Ancient civilizations, such as the Greeks, Romans, and Egyptians, often used body parts as a basis for measurement.
Because the actual length of a person's foot could vary, so did the measurement. This led to many inconsistencies until the foot was officially standardized.
How Is the Foot Used Today?
Although most of the world uses the metric system, the foot is still an official unit of length in the United States.
It is also commonly used in countries such as the United Kingdom and Canada, particularly for measuring height, altitude, and property dimensions.
To establish a global standard, the international foot was defined in 1959 as being exactly 0.3048 meters.
This precise conversion is crucial for international science, trade, and engineering.
What is a Millimeter (mm)?
A millimeter (mm) is a small unit of length in the metric system, equal to one-thousandth of a meter (1/1000 m or 0.001 m).
The word itself comes from the Latin "mille," meaning "thousand."
This is why the prefix "milli" in the metric system always means one-thousandth of a base unit—just like a milligram is one-thousandth of a gram.
The plural form is millimeters.
How Many Millimeters are in an Inch?
Understanding the relationship between millimeters and inches is crucial, particularly for projects that utilize both metric and imperial systems.
The official mm-to-inch conversion is a precise measurement used worldwide in engineering and manufacturing.
- Exact Conversion: 1 inch is equal to exactly 25.4 millimeters.
- Quick Reference: For a simple real-world comparison, 1 millimeter is about the thickness of a credit card.
Where are Millimeters Used Every Day?
The millimeter is the standard unit for measuring small distances with precision.
You likely encounter millimeter measurements more often than you think in daily life, science, and technology.
- Weather: Meteorologists measure daily rainfall in millimeters.
- Stationery: The lead in a mechanical pencil is measured by its diameter in millimeters (e.g., 0.5 mm or 0.7 mm).
- Electronics: Small components on circuit boards and common connectors, like the 3.5 mm headphone jack, are measured in millimeters.
What is the imperial system?
What is the metric system?
Foot to Millimeter Conversion Table
Here are some quick reference conversions from Foot (ft) to Millimeter (mm):
| Feet | Millimeters |
|---|---|
| 0.000001 ft | mm |
| 0.001 ft | mm |
| 0.1 ft | mm |
| 1 ft | mm |
| 2 ft | mm |
| 3 ft | mm |
| 4 ft | mm |
| 5 ft | mm |
| 6 ft | mm |
| 7 ft | mm |
| 8 ft | mm |
| 9 ft | mm |
| 10 ft | mm |
| 20 ft | mm |
| 30 ft | mm |
| 40 ft | mm |
| 50 ft | mm |
| 100 ft | mm |
| 1000 ft | mm |
| 10000 ft | mm |
List some Length Converters:
For all Length converters, choose units using the From/To dropdowns above.