Decimal to Fraction Chart

Find the nearest inch fraction for common decimal values. Use the chart for woodworking, layout work, and quick ruler checks.

Decimal to Fraction Calculator

Use the main calculator to enter fractions, decimals, mixed inch values, or millimeters. The chart below gives quick reference values for this page.

Common decimal inch values rounded to practical ruler fractions.

Decimal	Nearest 1/16	Nearest 1/32	Nearest 1/64
0.0156	0	1/32	1/64
0.0313	1/16	1/32	1/32
0.0469	1/16	1/16	3/64
0.0625	1/16	1/16	1/16
0.0781	1/16	3/32	5/64
0.0938	1/8	3/32	3/32
0.1094	1/8	1/8	7/64
0.1250	1/8	1/8	1/8
0.1406	1/8	5/32	9/64
0.2031	3/16	7/32	13/64
0.2656	1/4	9/32	17/64
0.3281	5/16	11/32	21/64
0.3906	3/8	13/32	25/64
0.4531	7/16	15/32	29/64
0.5156	1/2	17/32	33/64
0.5781	9/16	19/32	37/64
0.6406	5/8	21/32	41/64
0.7031	11/16	23/32	45/64

Note: Values are based on 1 inch = 25.4 millimeters.