Length Converter
Convert metric, imperial, navigation, and scientific length units with live results, accurate formulas, and reference tables.
Length conversion
Calculator
Results update instantly. Use Calculate to confirm the current conversion.
Result
1 ft ≈ 304.8 mm
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Popular length conversions
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Conversion table
Common feet to millimeters values, generated from the selected units.
| feet (ft) | millimeters (mm) |
|---|---|
| 1 foot | 304.8 millimeters |
| 5 feet | 1,524 millimeters |
| 10 feet | 3,048 millimeters |
| 20 feet | 6,096 millimeters |
| 50 feet | 15,240 millimeters |
| 100 feet | 30,480 millimeters |
Formula
Multiply the value in feet by 304.8 to get millimeters.
mm = ft × 304.8Example
Convert 1 foot:
1 ft ≈ 304.8 mm1 foot is approximately 304.8 millimeters.
Unit information
Concise reference information for the selected source and target units.
Foot (ft)
Imperial- Definition
- One international foot equals exactly 0.3048 meters or 12 inches.
- Usage
- Used for height, buildings, aviation altitude, and property measurements.
Millimeter (mm)
Metric- Definition
- One millimeter is one-thousandth of a meter.
- Usage
- Used for precise dimensions, manufacturing, medicine, and rainfall.
Frequently asked questions
Which length units does this converter support?
The converter supports 14 units: millimeters, centimeters, meters, kilometers, inches, feet, yards, miles, nautical miles, micrometers, nanometers, light years, astronomical units, and parsecs.
How does the length converter calculate results?
Each value is converted to meters as a shared base unit, then converted from meters to the selected target unit.
Can the converter handle decimals, negative values, and zero?
Yes. The input accepts integers, decimals, negative values, and zero, and updates the result immediately.