Fractional Inches Converter

Convert fractional inches to decimal inches and millimeters with high precision. Perfect for woodworking, machining, and engineering applications.

Fractional Inches Converter

Whole Inches

Select Fraction

Common Fractions Quick Reference

1/64

0.016"

0.4mm

1/32

0.031"

0.8mm

3/64

0.047"

1.2mm

1/16

0.063"

1.6mm

5/64

0.078"

2.0mm

3/32

0.094"

2.4mm

7/64

0.109"

2.8mm

1/8

0.125"

3.2mm

9/64

0.141"

3.6mm

5/32

0.156"

4.0mm

11/64

0.172"

4.4mm

3/16

0.188"

4.8mm

13/64

0.203"

5.2mm

7/32

0.219"

5.6mm

15/64

0.234"

6.0mm

1/4

0.250"

6.3mm

17/64

0.266"

6.7mm

9/32

0.281"

7.1mm

19/64

0.297"

7.5mm

5/16

0.313"

7.9mm

21/64

0.328"

8.3mm

11/32

0.344"

8.7mm

23/64

0.359"

9.1mm

3/8

0.375"

9.5mm