Converting between feet and millimeters is essential for engineering, manufacturing, and international projects requiring high precision in both imperial and metric units.
Key Conversion: 1 foot = 304.8 millimeters (exact)
Our feet to mm converter helps with:
- Precise foot to mm calculations
- Mechanical engineering specifications
- International manufacturing standards
- Architectural plan conversions
Feet to Millimeters Converter
Type any value in feet to see millimeters equivalent (e.g., 1 ft to mm = 304.8 mm)
Feet to Millimeters Conversion Chart
Common ft to mm conversions:
| Feet (ft) | Millimeters (mm) | Practical Example |
|---|---|---|
| 0.1 | 30.5 | Credit card length |
| 0.5 | 152.4 | Smartphone length |
| 1 | 304.8 | Standard ruler |
| 3 | 914.4 | Yard length |
| 6 | 1,828.8 | Average human height |
Note: 1 millimeter = exactly 0.00328084 feet (international standard)
How to Convert Feet to Millimeters Manually
Conversion Formula
1 foot = 304.8 millimeters
millimeters = feet × 304.8
This exact conversion factor was standardized internationally in 1959.
Step-by-Step Example
Start with feet value
Example: 2.5 feet to millimeters
Multiply by 304.8
2.5 × 304.8 = 762
Result in millimeters
2.5 ft = 762 mm
Quick Estimation Method
For rough feet to millimeters conversions:
- 1 foot ≈ 300 mm
- Multiply feet by 300 then add 5% (2 ft ≈ 600 + 30 = 630 mm)
- 10 feet ≈ 3,048 mm
4 feet to mm
4 feet is equal to 1,219.2 millimeters.
You can also express it as 48 inches or 121.92 centimeters.
5 feet to mm
5 feet is equal to 1,524 millimeters.
You can also express it as 60 inches or 152.4 centimeters.
8 feet to mm
8 feet is equal to 2,438.4 millimeters.
You can also express it as 96 inches or 243.84 centimeters.
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