Fraction to Decimal Inch Converter - Free Online Calculator
Fraction to Decimal Inch Converter
Convert between fractional inches, decimal inches, and millimeters. Essential for technical drawings, woodworking, and precision measurements.
Fraction to Decimal Converter
Decimal to Fraction Converter
Common Fraction Reference Chart
Fraction | Decimal | mm | 64ths |
---|---|---|---|
1/64" | 0.0156" | 0.397 mm | 1/64" |
1/32" | 0.0313" | 0.794 mm | 1/64" |
3/64" | 0.0469" | 1.191 mm | 3/64" |
1/16" | 0.0625" | 1.587 mm | 1/64" |
5/64" | 0.0781" | 1.984 mm | 5/64" |
3/32" | 0.0938" | 2.381 mm | 3/64" |
7/64" | 0.1094" | 2.778 mm | 7/64" |
1/8" | 0.1250" | 3.175 mm | 1/64" |
9/64" | 0.1406" | 3.572 mm | 9/64" |
5/32" | 0.1563" | 3.969 mm | 5/64" |
11/64" | 0.1719" | 4.366 mm | 11/64" |
3/16" | 0.1875" | 4.762 mm | 3/64" |
13/64" | 0.2031" | 5.159 mm | 13/64" |
7/32" | 0.2188" | 5.556 mm | 7/64" |
15/64" | 0.2344" | 5.953 mm | 15/64" |
1/4" | 0.2500" | 6.350 mm | 1/64" |
17/64" | 0.2656" | 6.747 mm | 17/64" |
9/32" | 0.2813" | 7.144 mm | 9/64" |
19/64" | 0.2969" | 7.541 mm | 19/64" |
5/16" | 0.3125" | 7.938 mm | 5/64" |
21/64" | 0.3281" | 8.334 mm | 21/64" |
11/32" | 0.3438" | 8.731 mm | 11/64" |
23/64" | 0.3594" | 9.128 mm | 23/64" |
3/8" | 0.3750" | 9.525 mm | 3/64" |
25/64" | 0.3906" | 9.922 mm | 25/64" |
13/32" | 0.4063" | 10.319 mm | 13/64" |
27/64" | 0.4219" | 10.716 mm | 27/64" |
7/16" | 0.4375" | 11.112 mm | 7/64" |
29/64" | 0.4531" | 11.509 mm | 29/64" |
15/32" | 0.4688" | 11.906 mm | 15/64" |
31/64" | 0.4844" | 12.303 mm | 31/64" |
1/2" | 0.5000" | 12.700 mm | 1/64" |
33/64" | 0.5156" | 13.097 mm | 33/64" |
17/32" | 0.5313" | 13.494 mm | 17/64" |
35/64" | 0.5469" | 13.891 mm | 35/64" |
9/16" | 0.5625" | 14.287 mm | 9/64" |
37/64" | 0.5781" | 14.684 mm | 37/64" |
19/32" | 0.5938" | 15.081 mm | 19/64" |
39/64" | 0.6094" | 15.478 mm | 39/64" |
5/8" | 0.6250" | 15.875 mm | 5/64" |
41/64" | 0.6406" | 16.272 mm | 41/64" |
21/32" | 0.6563" | 16.669 mm | 21/64" |
43/64" | 0.6719" | 17.066 mm | 43/64" |
11/16" | 0.6875" | 17.462 mm | 11/64" |
45/64" | 0.7031" | 17.859 mm | 45/64" |
23/32" | 0.7188" | 18.256 mm | 23/64" |
47/64" | 0.7344" | 18.653 mm | 47/64" |
3/4" | 0.7500" | 19.050 mm | 3/64" |
49/64" | 0.7656" | 19.447 mm | 49/64" |
25/32" | 0.7813" | 19.844 mm | 25/64" |
51/64" | 0.7969" | 20.241 mm | 51/64" |
13/16" | 0.8125" | 20.637 mm | 13/64" |
53/64" | 0.8281" | 21.034 mm | 53/64" |
27/32" | 0.8438" | 21.431 mm | 27/64" |
55/64" | 0.8594" | 21.828 mm | 55/64" |
7/8" | 0.8750" | 22.225 mm | 7/64" |
57/64" | 0.8906" | 22.622 mm | 57/64" |
29/32" | 0.9063" | 23.019 mm | 29/64" |
59/64" | 0.9219" | 23.416 mm | 59/64" |
15/16" | 0.9375" | 23.813 mm | 15/64" |
61/64" | 0.9531" | 24.209 mm | 61/64" |
31/32" | 0.9688" | 24.606 mm | 31/64" |
63/64" | 0.9844" | 25.003 mm | 63/64" |
1" | 1.0000" | 25.400 mm | 1/64" |
Visual Inch Ruler
How to use this calculator
๐ข How to Use This Calculator
- To convert fractions to decimals: Enter whole inches and fraction parts
- Use quick select buttons for common fractions
- To convert decimals to fractions: Enter decimal value
- Check the reference table for common conversions
- Click on the visual ruler to measure specific points
๐ Understanding Inch Fractions
Inches are commonly divided into fractions with denominators that are powers of 2:
- โข Halves: 1/2"
- โข Quarters: 1/4", 3/4"
- โข Eighths: 1/8", 3/8", 5/8", 7/8"
- โข Sixteenths: 1/16", 3/16", 5/16", etc.
- โข Thirty-seconds and sixty-fourths for precision work
๐ Practical Applications
Woodworking
- โข Measuring lumber thickness
- โข Setting saw blade depth
- โข Drilling precise holes
Engineering
- โข Technical drawings
- โข Machine part specifications
- โข Tolerance calculations
๐ก Quick Reference
Common Equivalents:
- 1/2" = 0.5000" = 12.700 mm
- 1/4" = 0.2500" = 6.350 mm
- 1/8" = 0.1250" = 3.175 mm
- 1/16" = 0.0625" = 1.588 mm
Conversion Factor:
- 1 inch = 25.4 mm (exactly)
- To convert: multiply inches by 25.4
- From mm: divide by 25.4
โ ๏ธ Important Notes
- โข Always simplify fractions to lowest terms
- โข Be careful with precision - more decimal places mean more accuracy
- โข In woodworking, 1/16" is often the practical limit
- โข For machining, 1/64" or decimal inches are common
- โข Remember: measuring twice prevents costly mistakes
About this calculator
Convert fractional inches to decimal inches and millimeters. Perfect for woodworking, engineering, and technical drawings.
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