🔬 Precision Length Converter
Feet ↔ Millimeters | High-Precision Conversions
📏 Millimeter Precision
1 foot = 304.8 millimeters (exact)
Used in engineering, manufacturing, and technical drawings
🔄 Conversion Factor
1 foot = 12 inches
1 inch = 25.4 mm
Therefore: 1 ft = 304.8 mm
🎯 Applications
CAD design, machining, construction plans, and precise measurements
Choose Conversion Mode:
🔄 Feet ↔ Millimeters Converter
📋 Quick Reference Tables
Feet to Millimeters
| Feet | Millimeters |
|---|---|
| 0.1 ft | 30.48 mm |
| 0.5 ft | 152.4 mm |
| 1 ft | 304.8 mm |
| 2 ft | 609.6 mm |
| 5 ft | 1,524 mm |
| 10 ft | 3,048 mm |
Common Measurements
| Object | Size |
|---|---|
| Credit Card | 85.6 × 53.98 mm |
| A4 Paper | 210 × 297 mm |
| Door Width | 914.4 mm (3 ft) |
| Standard Brick | 215 × 102.5 × 65 mm |
| 2×4 Lumber | 38 × 89 mm actual |
⚙️ Engineering & Manufacturing Applications
🏗️ Construction
Standard Measurements:
• Rebar spacing
• Bolt patterns
• Floor joist spacing
• Wall stud dimensions
🔧 Machining
Precision Work:
• Tolerances: ±0.01 mm
• Thread pitches
• Bearing fits
• Tool dimensions
📐 CAD Design
Technical Drawings:
• Part specifications
• Assembly clearances
• Material thickness
• Dimensional accuracy
🔬 Precision Scale Comparison
| Unit | Size | Use Case |
|---|---|---|
| Kilometer (km) | 1,000,000 mm | Long distances, maps |
| Meter (m) | 1,000 mm | Room dimensions, fabric |
| Foot (ft) | 304.8 mm | Height, construction |
| Inch (in) | 25.4 mm | Screen sizes, pipes |
| Centimeter (cm) | 10 mm | Small objects, clothing |
| Millimeter (mm) | 1 mm | Precision measurements |
| Micrometer (μm) | 0.001 mm | Microscopy, semiconductors |
| Nanometer (nm) | 0.000001 mm | Nanotechnology, atoms |
🧮 Conversion Formulas
Basic Conversions
mm = feet × 304.8
Millimeters to Feet:
feet = mm ÷ 304.8
Exact Relationship:
1 ft = 12 in × 25.4 mm/in = 304.8 mm
Related Conversions
1 yard = 914.4 mm
1 mile = 1,609,344 mm
1 meter = 1,000 mm
1 cm = 10 mm
1 ft = 0.3048 m = 304.8 mm
How to convert feet to millimeters
1 foot is equal to 304.8 millimeters:
1 ft = 304.8 mm
The distance d in millimeters (mm) is equal to the distance d in feet (ft) times 304.8:
d(mm) = d(ft) × 304.8
Example
Convert 2 feet to millimeters:
d(mm) = 2ft × 304.8 = 609.6mm
Feet to millimeters conversion table
| Feet (ft) | Millimeters (mm) |
|---|---|
| 0.01 ft | 3.05 mm |
| 0.1 ft | 30.5 mm |
| 1 ft | 304.8 mm |
| 2 ft | 609.6 mm |
| 3 ft | 914.4 mm |
| 4 ft | 1219.2 mm |
| 5 ft | 1524.0 mm |
| 6 ft | 1828.8 mm |
| 7 ft | 2133.6 mm |
| 8 ft | 2438.4 mm |
| 9 ft | 2743.2 mm |
| 10 ft | 3048.0 mm |
| 20 ft | 6096.0 mm |
| 30 ft | 9144.0 mm |
| 40 ft | 12192.0 mm |
| 50 ft | 15240.0 mm |
| 60 ft | 18288.0 mm |
| 70 ft | 21336.0 mm |
| 80 ft | 24384.0 mm |
| 90 ft | 27432.0 mm |
| 100 ft | 30480.0 mm |
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