Inches to MM Conversion Chart
Generate and print custom inches to millimeters conversion charts. Support for both decimal and fractional inches with adjustable precision.
Chart Settings
Chart Preview: 0" to 12", step 0.5" • 25 rows
Chart Preview
Decimal & Fractions
Generate charts with decimal inches (2.5") or common fractions (1/2", 3/8", 5/16") for traditional measurements.
Flexible Ranges
Create charts from 0 to 200 inches with customizable intervals. Perfect for any project size.
Print Optimized
Clean, professional layout designed for printing. Save as PDF or print directly for reference.
Common Use Cases
🪵 Woodworking & Carpentry
Essential for woodworkers using imperial measurements who need metric equivalents for international plans or tools.
🔩 Hardware & Fasteners
Quick reference for bolt sizes, drill bits, and hardware when working with mixed measurement systems.
🏗️ Construction
Convert standard imperial building dimensions to metric for international projects or specifications.
🛠️ Manufacturing
Critical for manufacturing environments working with both imperial and metric tolerances and specifications.
Frequently Asked Questions
Should I use decimal or fractional inches?
Use decimal inches (2.5") for precision work and engineering. Use fractional inches (1/2", 3/8") for traditional woodworking and construction where tape measures and rulers use fractions.
What fraction precision should I choose?
For most woodworking and DIY, 1/16" is standard. For fine woodworking or precision work, use 1/32". For rough framing or general construction, 1/8" may be sufficient.
How do I print the chart?
Click "Print Chart" to open a print-friendly view. You can print directly or save as PDF using your browser's print dialog. The chart is optimized for standard letter/A4 paper.
What range covers standard lumber sizes?
Most standard lumber dimensions fall within 0-12 inches. For larger beams and sheet materials, consider 0-48 inches or 0-96 inches (8 feet).
Need Quick Conversions?
Use our interactive converter for instant conversions without creating a full chart.
Go to Interactive Converter