0.625 as a Fraction of an Inch
Answer
5/8 in
0.625 in = 5/8 in (1/64 in) = 15.875 mm
0.625 inches equals 5/8 inch, a common bolt, wrench, and drill index size that also matches many spark plug sockets and standard rebar diameters. It shows up regularly in lumber and general hardware dimensions. Sitting exactly between 9/16 in (0.5625 in) and 3/4 in (0.75 in), it reads as 5/8 in whether you round to 1/16, 1/32, or 1/64 precision.
Try another decimal
Nearest 1/16
5/8"
Nearest 1/32
5/8"
Millimeters
15.875 mm
Related values
| Value | Result |
|---|---|
| Nearest 1/8 in | 5/8 in |
| Nearest 1/16 in | 5/8 in |
| Nearest 1/32 in | 5/8 in |
| Nearest 1/64 in | 5/8 in |
| Millimeters | 15.875 mm |
| Centimeters | 1.5875 cm |
| Feet | 0.052083 ft |
How the conversion works
- Split the decimal. Separate the whole-number part from the decimal part. 0.625 has no whole-number portion, so the entire value converts into the fraction.
- Multiply by precision. Multiply the decimal by the denominator you want, 16, 32, or 64, then round to the nearest whole number. 0.625 × 16 = 10 exactly, with no rounding needed.
- Simplify. Reduce the fraction using the greatest common divisor of numerator and denominator. 10/16 shares a factor of 2, which simplifies to 5/8.
- Verify in mm. Multiply the decimal inches by 25.4 to check the metric equivalent: 0.625 × 25.4 = 15.875 mm.
Frequently Asked Questions
0.625 inches equals 5/8 in. That answer is exact at 1/16, 1/32, and 1/64 precision because 0.625 is already a whole number of eighths with nothing left to round.
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5/8 Inch as Decimal
Fraction equivalent
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0.75 as a Fraction
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