Practical measurement guide
Decimal Inches to Fractions
Convert decimal inches to nearby ruler fractions with centimeter and millimeter context.
Convert decimal inches to a nearby ruler fraction by rounding to the chosen denominator.
in
Decimals and fractions work, for example 1.5, 1/2, or 1 1/2.
cm
Try a value
Fractions
0.625 in = 1.5875 cm
0.625 in × 2.54 = 1.5875 cm
Decimal inches0.625 in
Feet + inches0 ft 0.625 in
Nearest 1/16 inch5/8"
Decimal to fraction method
Choose the ruler denominator first, such as 16ths or 32nds, then round the decimal inch value to the nearest increment.
Keep exact and rounded values separate
A fraction can be a practical tape-measure reading, while the decimal and metric values are better for calculations and specifications.
Related measurement tools
Frequently asked questions
What is 0.625 inches as a fraction?
0.625 inches equals 5/8 inch.
Which denominator should I use?
Use the denominator your ruler supports, such as 16ths or 32nds.