mm to inches chart
Comprehensive millimeter to inch conversion chart with both decimal and fractional inch equivalents. Quickly toggle display presets for 1–50, 51–100, 1–100, or 1–500 mm to focus on the range you need. This printable reference table provides instant lookup for common metric-to-imperial conversions without calculation, ideal for workshop walls, toolboxes, or quick reference during manufacturing, woodworking, and construction projects.
Comprehensive millimeter to inch conversion chart with both decimal and fractional inch equivalents. Quickly toggle display presets for 1–50, 51–100, 1–100, or 1–500 mm to focus on the range you need. This printable reference table provides instant lookup for common metric-to-imperial conversions without calculation, ideal for workshop walls, toolboxes, or quick reference during manufacturing, woodworking, and construction projects.
Print this chart as a PDF or keep it on-screen for rapid measurement translation. Set custom Start and End values in Print Settings to generate a PDF for any range (e.g., 120–380 mm), with precise decimal inches (to 4 places) and the nearest 1/32" fractional approximation. Larger spans are supported via custom ranges, letting you export well beyond 500 mm when needed.
Print this chart as a PDF or keep it on-screen for rapid measurement translation. Set custom Start and End values in Print Settings to generate a PDF for any range (e.g., 120–380 mm), with precise decimal inches (to 4 places) and the nearest 1/32" fractional approximation. Larger spans are supported via custom ranges, letting you export well beyond 500 mm when needed.
Most Searched Values
💡 Tip: The table will automatically scroll to your value and switch ranges if needed
Display Range
Fraction Display
Print Settings
Supported range: 1-5000 mm
Tip for clean PDF export:
In the print dialog, uncheck "Headers and footers" option to remove browser-generated page information (URL, date, page numbers) from your PDF.
mm to inches chart: quick lookup table
| mm | Decimal | |
|---|---|---|
| 1 | 0.0394" | |
| 2 | 0.0787" | |
| 3 | 0.1181" | |
| 4 | 0.1575" | |
| 5 | 0.1969" | |
| 6 | 0.2362" | |
| 7 | 0.2756" | |
| 8 | 0.315" | |
| 9 | 0.3543" | |
| 10 | 0.3937" | |
| 11 | 0.4331" | |
| 12 | 0.4724" | |
| 13 | 0.5118" | |
| 14 | 0.5512" | |
| 15 | 0.5906" | |
| 16 | 0.6299" | |
| 17 | 0.6693" | |
| 18 | 0.7087" | |
| 19 | 0.748" | |
| 20 | 0.7874" | |
| 21 | 0.8268" | |
| 22 | 0.8661" | |
| 23 | 0.9055" | |
| 24 | 0.9449" | |
| 25 | 0.9843" | |
| 26 | 1.0236" | |
| 27 | 1.063" | |
| 28 | 1.1024" | |
| 29 | 1.1417" | |
| 30 | 1.1811" | |
| 31 | 1.2205" | |
| 32 | 1.2598" | |
| 33 | 1.2992" | |
| 34 | 1.3386" | |
| 35 | 1.378" | |
| 36 | 1.4173" | |
| 37 | 1.4567" | |
| 38 | 1.4961" | |
| 39 | 1.5354" | |
| 40 | 1.5748" | |
| 41 | 1.6142" | |
| 42 | 1.6535" | |
| 43 | 1.6929" | |
| 44 | 1.7323" | |
| 45 | 1.7717" | |
| 46 | 1.811" | |
| 47 | 1.8504" | |
| 48 | 1.8898" | |
| 49 | 1.9291" | |
| 50 | 1.9685" |
Detailed Conversion Table
Includes decimal inches and nearest 1/32" fraction with all values from 1-100mm.
| mm | Decimal Inches | Fraction (1/32) | Actions |
|---|---|---|---|
| 1 | 0.0394" | 1/32" | |
| 2 | 0.0787" | 3/32" | |
| 3 | 0.1181" | 1/8" | |
| 4 | 0.1575" | 5/32" | |
| 5 | 0.1969" | 3/16" | |
| 6 | 0.2362" | 1/4" | |
| 7 | 0.2756" | 9/32" | |
| 8 | 0.315" | 5/16" | |
| 9 | 0.3543" | 11/32" | |
| 10 | 0.3937" | 13/32" | |
| 11 | 0.4331" | 7/16" | |
| 12 | 0.4724" | 15/32" | |
| 13 | 0.5118" | 1/2" | |
| 14 | 0.5512" | 9/16" | |
| 15 | 0.5906" | 19/32" | |
| 16 | 0.6299" | 5/8" | |
| 17 | 0.6693" | 21/32" | |
| 18 | 0.7087" | 23/32" | |
| 19 | 0.748" | 3/4" | |
| 20 | 0.7874" | 25/32" | |
| 21 | 0.8268" | 13/16" | |
| 22 | 0.8661" | 7/8" | |
| 23 | 0.9055" | 29/32" | |
| 24 | 0.9449" | 15/16" | |
| 25 | 0.9843" | 31/32" | |
| 26 | 1.0236" | 1 1/32" | |
| 27 | 1.063" | 1 1/16" | |
| 28 | 1.1024" | 1 3/32" | |
| 29 | 1.1417" | 1 5/32" | |
| 30 | 1.1811" | 1 3/16" | |
| 31 | 1.2205" | 1 7/32" | |
| 32 | 1.2598" | 1 1/4" | |
| 33 | 1.2992" | 1 5/16" | |
| 34 | 1.3386" | 1 11/32" | |
| 35 | 1.378" | 1 3/8" | |
| 36 | 1.4173" | 1 13/32" | |
| 37 | 1.4567" | 1 15/32" | |
| 38 | 1.4961" | 1 1/2" | |
| 39 | 1.5354" | 1 17/32" | |
| 40 | 1.5748" | 1 9/16" | |
| 41 | 1.6142" | 1 5/8" | |
| 42 | 1.6535" | 1 21/32" | |
| 43 | 1.6929" | 1 11/16" | |
| 44 | 1.7323" | 1 23/32" | |
| 45 | 1.7717" | 1 25/32" | |
| 46 | 1.811" | 1 13/16" | |
| 47 | 1.8504" | 1 27/32" | |
| 48 | 1.8898" | 1 7/8" | |
| 49 | 1.9291" | 1 15/16" | |
| 50 | 1.9685" | 1 31/32" |
Common Use Cases
Hardware & Tools
Paper Sizes
Automotive
Real-World Size Reference
| Millimeters | Inches | Real Object | Common Use |
|---|---|---|---|
| 1mm | 0.04" | Credit card thickness | Thin sheet metal, shims |
| 5mm | 0.20" | Pencil diameter | Small screws, drill bits |
| 10mm | 0.39" | Finger width | Bolts, pipe fittings |
| 25mm | 0.98" | US quarter diameter | Lumber thickness, pipes |
| 50mm | 1.97" | Golf ball diameter | Building materials, plates |
| 100mm | 3.94" | Smartphone width | Structural components |
💡 Pro Tip
Click any mm value in the table to jump to its precise conversion in the detailed table above, or use the quick search to find any specific measurement instantly.
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About this mm to inches chart
This comprehensive conversion chart provides instant reference values for transforming millimeters to inches across the range of 1mm to 100mm. All conversions utilize the precise international standard conversion factor: 1 inch = 25.4 millimeters exactly, established by international agreement and used worldwide for metric-imperial measurement translation.
Decimal inch values are calculated to 4 decimal places for engineering precision and quality control applications. Fractional inch approximations display the nearest 1/32" equivalent, the most common precision level for general mechanical work, carpentry, and metal fabrication. This dual-format presentation serves both precision machining (requiring decimal accuracy) and traditional crafts (using fractional rulers and tape measures).
Printing instructions: Click the "Print / Save as PDF" button above to generate a printer-optimized version of this conversion table. The print layout is formatted for standard letter-size (8.5" × 11") paper in portrait orientation, with unnecessary interface elements hidden for maximum chart legibility. Save the PDF to your device or print multiple copies for workshop distribution.
Common applications: This millimeter-inch chart proves invaluable when working with imported hardware (metric fasteners, bearings, tubing), reading international technical drawings, converting European product specifications, sizing drill bits between metric and fractional inch sets, or verifying CNC machining dimensions across measurement systems. Keep a printed copy at your workbench, machine shop, or construction site for instant reference without digital devices.