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Woodworking Bench • 1-100
Range: 1-100mm • Precision: 3 decimal places • Fractions: 1/32"
| Millimeters (mm) | Inches (Decimal) | Inches (Fraction) |
|---|---|---|
| 1 | 0.039 | 1/32 |
| 2 | 0.079 | 3/32 |
| 3 | 0.118 | 1/8 |
| 4 | 0.157 | 5/32 |
| 5 | 0.197 | 3/16 |
| 6 | 0.236 | 1/4 |
| 7 | 0.276 | 9/32 |
| 8 | 0.315 | 5/16 |
| 9 | 0.354 | 11/32 |
| 10 | 0.394 | 13/32 |
| 11 | 0.433 | 7/16 |
| 12 | 0.472 | 15/32 |
| 13 | 0.512 | 1/2 |
| 14 | 0.551 | 9/16 |
| 15 | 0.591 | 19/32 |
| 16 | 0.630 | 5/8 |
| 17 | 0.669 | 21/32 |
| 18 | 0.709 | 23/32 |
| 19 | 0.748 | 3/4 |
| 20 | 0.787 | 25/32 |
| 21 | 0.827 | 13/16 |
| 22 | 0.866 | 7/8 |
| 23 | 0.906 | 29/32 |
| 24 | 0.945 | 15/16 |
| 25 | 0.984 | 31/32 |
| 26 | 1.024 | 1 1/32 |
| 27 | 1.063 | 1 1/16 |
| 28 | 1.102 | 1 3/32 |
| 29 | 1.142 | 1 5/32 |
| 30 | 1.181 | 1 3/16 |
| 31 | 1.220 | 1 7/32 |
| 32 | 1.260 | 1 1/4 |
| 33 | 1.299 | 1 5/16 |
| 34 | 1.339 | 1 11/32 |
| 35 | 1.378 | 1 3/8 |
| 36 | 1.417 | 1 13/32 |
| 37 | 1.457 | 1 15/32 |
| 38 | 1.496 | 1 1/2 |
| 39 | 1.535 | 1 17/32 |
| 40 | 1.575 | 1 9/16 |
| 41 | 1.614 | 1 5/8 |
| 42 | 1.654 | 1 21/32 |
| 43 | 1.693 | 1 11/16 |
| 44 | 1.732 | 1 23/32 |
| 45 | 1.772 | 1 25/32 |
| 46 | 1.811 | 1 13/16 |
| 47 | 1.850 | 1 27/32 |
| 48 | 1.890 | 1 7/8 |
| 49 | 1.929 | 1 15/16 |
| 50 | 1.969 | 1 31/32 |
| 51 | 2.008 | 2 |
| 52 | 2.047 | 2 1/16 |
| 53 | 2.087 | 2 3/32 |
| 54 | 2.126 | 2 1/8 |
| 55 | 2.165 | 2 5/32 |
| 56 | 2.205 | 2 7/32 |
| 57 | 2.244 | 2 1/4 |
| 58 | 2.283 | 2 9/32 |
| 59 | 2.323 | 2 5/16 |
| 60 | 2.362 | 2 3/8 |
| 61 | 2.402 | 2 13/32 |
| 62 | 2.441 | 2 7/16 |
| 63 | 2.480 | 2 15/32 |
| 64 | 2.520 | 2 17/32 |
| 65 | 2.559 | 2 9/16 |
| 66 | 2.598 | 2 19/32 |
| 67 | 2.638 | 2 5/8 |
| 68 | 2.677 | 2 11/16 |
| 69 | 2.717 | 2 23/32 |
| 70 | 2.756 | 2 3/4 |
| 71 | 2.795 | 2 25/32 |
| 72 | 2.835 | 2 27/32 |
| 73 | 2.874 | 2 7/8 |
| 74 | 2.913 | 2 29/32 |
| 75 | 2.953 | 2 15/16 |
| 76 | 2.992 | 2 1/1 |
| 77 | 3.031 | 3 1/32 |
| 78 | 3.071 | 3 1/16 |
| 79 | 3.110 | 3 1/8 |
| 80 | 3.150 | 3 5/32 |
| 81 | 3.189 | 3 3/16 |
| 82 | 3.228 | 3 7/32 |
| 83 | 3.268 | 3 9/32 |
| 84 | 3.307 | 3 5/16 |
| 85 | 3.346 | 3 11/32 |
| 86 | 3.386 | 3 3/8 |
| 87 | 3.425 | 3 7/16 |
| 88 | 3.465 | 3 15/32 |
| 89 | 3.504 | 3 1/2 |
| 90 | 3.543 | 3 17/32 |
| 91 | 3.583 | 3 19/32 |
| 92 | 3.622 | 3 5/8 |
| 93 | 3.661 | 3 21/32 |
| 94 | 3.701 | 3 11/16 |
| 95 | 3.740 | 3 3/4 |
| 96 | 3.780 | 3 25/32 |
| 97 | 3.819 | 3 13/16 |
| 98 | 3.858 | 3 27/32 |
| 99 | 3.898 | 3 29/32 |
| 100 | 3.937 | 3 15/16 |
Formula: inches = mm ÷ 25.4
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100
Range
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Master millimeter to inches conversions with our comprehensive guide
Each millimeter value shows its equivalent in decimal inches. Our charts display 2-4 decimal places depending on your precision needs.
Example:
25.4 mm = 1.000 inches
50 mm = 1.969 inches
Tip: For most applications, 3 decimal places (0.039) provides perfect balance between precision and readability.
Fractions are shown in common workshop increments (1/64", 1/32", 1/16", 1/8"). Choose precision based on your measuring tools.
Example:
10 mm ≈ 25/64"
25 mm ≈ 1"
Note: Most standard tape measures use 1/16" increments. For precision woodworking, use 1/32" or finer.
⚠️ Important: Always verify scale accuracy by measuring a known distance on the printed chart.
Discover how professionals and enthusiasts use MM to Inches charts in their daily work
Essential for working with imported tools, hardware, and plans that use metric measurements. Quickly convert router bit sizes, blade dimensions, and material thicknesses without calculations.
💡 Recommended: 1-100mm range with 1/32" fraction precision
Critical for precision work where metric and imperial parts interface. Ensure proper tolerances when machining parts to mixed specifications or working with international standards.
💡 Recommended: 1-50mm range with 4 decimal places precision
Helpful when following international project plans or working with furniture that uses metric measurements. Make accurate material purchases and ensure proper fit for your home improvement projects.
💡 Recommended: 1-100mm range with 1/16" fraction precision
The Formula
Example Calculation:
Problem: Convert 50mm to inches
Step 1: 50 ÷ 25.4
Step 2: = 1.968503...
Answer: ≈ 1.969 inches (or approximately 2")
The conversion factor 25.4 comes from the international standardization of the inch in 1959. Before this, different countries had slightly different definitions of an inch.
Today, 1 inch is defined as exactly 25.4 millimeters. This means:
💡 Memory Trick: The magic number is 25.4. Memorize this, and you can mentally estimate any mm-to-inches conversion!
For quick estimates, divide mm by 25 instead of 25.4
Remember key conversions and multiply
1 mm ≈ 0.04 inches (rounded from 0.0394)
When exact matters, use your phone calculator
Explore more free printable charts to complete your toolkit
Reverse conversion from inches to millimeters
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Convert inch fractions (1/16", 1/32") to decimals
Complete drill bit sizes in mm, inches & fractions
1 millimeter = 0.0393700787402 inches (exact). Our charts can display up to 4 decimal places (0.0394 inches) which is more than sufficient for all practical applications including precision machining. For most users, 3 decimal places (0.039) provides the perfect balance between accuracy and readability.
It depends on your application. Use decimals for precision work (CNC machining, engineering drawings, digital calipers). Use fractions for traditional woodworking where you're measuring with tape measures marked in 1/16" or 1/32" increments. Our charts include both formats so you can reference either one!
Most woodworkers find 1-100mm (0.039-3.937 inches) covers 95% of common measurements. This range includes all typical router bit sizes, blade dimensions, and material thicknesses. For smaller precision work (like inlay or marquetry), consider 1-50mm with 0.5mm steps for finer granularity.
25.4mm equals exactly 1 inch. This is the fundamental conversion factor defined internationally in 1959. Memorizing this single number helps you quickly estimate any mm-to-inches conversion mentally. For example: 50mm is approximately 2 inches (50 ÷ 25 = 2), and 127mm is about 5 inches (127 ÷ 25.4 = 5).
Absolutely! Select 4 decimal places for machining-grade accuracy. Our conversion uses the standard formula (mm ÷ 25.4) which matches industry standards and specifications used by CNC machines, precision instruments, and engineering drawings worldwide. The 4-decimal precision (0.0394") is sufficient for tolerances down to ±0.0001 inch.
The fraction shown is the closest common fraction to the exact decimal value. For example: 10mm = 0.3937 inches ≈ 25/64". The "≈" symbol means "approximately." For woodworking, the fraction gives you the nearest marking on your tape measure. For precision work, use the decimal value.
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