What is 4/64″?
4/64″ is a fractional inch measurement, commonly used in woodworking, metalworking, machining, and engineering.
4/64″ is equivalent to 1/16″, a more commonly recognized fraction.
Knowing its millimeter equivalent ensures accurate work when using metric tools.
Conversion Formula
1 inch = 25.4 millimeters
Millimeters = Inches × 25.4
Step-by-Step Conversion: 4/64″ to mm
Step 1: Convert fraction to decimal
4 ÷ 64 = 0.0625
Step 2: Multiply by 25.4
0.0625 × 25.4 = 1.5875 mm
Step 3: Round if needed
≈ 1.59 mm
✅ Result:
4/64″ = 1.5875 mm ≈ 1.59 mm
Quick Reference: Small Fractional Inches
| Fraction | Decimal | Millimeters (mm) |
|---|---|---|
| 1/64″ | 0.015625 | 0.3969 |
| 2/64″ | 0.03125 | 0.7938 |
| 3/64″ | 0.046875 | 1.191 |
| 4/64″ | 0.0625 | 1.5875 |
| 5/64″ | 0.078125 | 1.9844 |
| 1/16″ | 0.0625 | 1.5875 |
Use this table for quick conversions without a calculator.
Applications of 4/64″ in Millimeters
✅ Woodworking: precise cuts and joints
✅ Metalworking: small sheet thickness or component adjustments
✅ Machining & Engineering: accurate component sizing
✅ DIY Projects: templates and fittings requiring precision
Converting to millimeters ensures accuracy, global standardization, and easier calculation for metric tools.
AQs About 4/64″ Conversion
Q1: Can 4/64″ be simplified?
A1: Yes, 4/64″ = 1/16″.
Q2: How accurate is 4/64″ in mm?
A2: 4/64″ = 1.5875 mm. Rounded, it’s 1.59 mm.
Q3: Where is 4/64″ used?
A3: In woodworking, metalwork, machining, engineering, and DIY projects.
Q4: Why convert inches to mm?
A4: Millimeters provide more precise measurements and are standard internationally.
✅ Conclusion
Converting 4/64″ to millimeters is simple:
Decimal = 4 ÷ 64 = 0.0625 → multiply by 25.4 → 1.5875 mm ≈ 1.59 mm
This small fraction is used in precision projects, and knowing its mm equivalent ensures accuracy and standardization.