5/8 Inch as a Decimal
Answer
0.625 in
5/8 in = 0.625 in = 15.875 mm
5/8 inch is the diameter of a #5 rebar in the US system, where bar sizes are numbered in 1/8 inch steps, making this one of the more recognizable fractional sizes in construction. As a decimal it equals 0.625 inches, or 15.875 millimeters, sitting exactly midway between 9/16 inch (0.5625 in) and 11/16 inch (0.6875 in). It is also a common drywall thickness and socket size.
Try another fraction
/
Decimal
0.625
Millimeters
15.875 mm
Related values
| Value | Result |
|---|---|
| Decimal | 0.625 in |
| Millimeters | 15.875 mm |
| Centimeters | 1.5875 cm |
| Feet | 0.052083 ft |
How the conversion works
- Divide. Divide the numerator (5) by the denominator (8) to convert the fraction into a decimal.
- Decimal result. 5 ÷ 8 = 0.625. This is an exact, terminating decimal because 8 is a power of two.
- Convert to mm. Multiply the decimal by 25.4, the number of millimeters in one inch: 0.625 × 25.4 = 15.875 mm, the figure to use when matching a metric spec sheet.
Frequently Asked Questions
5/8 equals 0.625 as a decimal. Divide the numerator, 5, by the denominator, 8, to get this result. It is a common mark on a tape measure, sitting between the 1/2 inch and 3/4 inch lines.
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0.625 as a Fraction
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