CalcKitHome›Math & Stats›Decimal to Inches
Decimal to Inches Calculator
Your decimal
Nearest fraction
—
Rounded to the nearest 1/16
Decimal inches—
Millimeters—
Feet + inches—
Nearest fraction—
The calculation
0.4375 × 16 = 7
7/16″
Example: 0.4375 in → 7/16″ (11.11 mm).
Behind the numbers
How decimal inches are converted
Multiply the decimal by the denominator (for example, 16) and round it — that is the numerator. 0.4375 x 16 = 7 → 7/16".
The formula
Numerator = decimal × denominator
0.4375 × 16 = 7, so 0.4375 in = 7/16" (11.11 mm).
Reference
Common conversions
| Decimal | Fraction | mm |
|---|---|---|
| 0.0625 | 1/16" | 1.59 |
| 0.125 | 1/8" | 3.18 |
| 0.25 | 1/4" | 6.35 |
| 0.375 | 3/8" | 9.53 |
| 0.4375 | 7/16" | 11.11 |
| 0.5 | 1/2" | 12.70 |
| 0.625 | 5/8" | 15.88 |
| 0.75 | 3/4" | 19.05 |
| 0.875 | 7/8" | 22.23 |
Good to know
FAQ
How do you convert a decimal to inches as a fraction?
Multiply the decimal by the denominator and round it — that is the numerator. 0.4375 × 16 = 7, so 0.4375 in = 7/16".
What is 0.5 in inches as a fraction?
1/2". 0.5 × 16 = 8, and 8/16 simplifies to 1/2.
Which fraction should I round to — 1/8, 1/16, 1/32 or 1/64?
Use 1/16 for most tape-measure work and 1/32 or 1/64 for finer work. The calculator lets you pick the denominator before converting.
How many millimetres is a decimal inch?
Multiply by 25.4 — so 0.4375 in = 11.11 mm. The calculator also shows the result in feet and inches.