Metric to Fractional Inches Calculator
This conversion utility provides direct mapping between standard metric units (millimeters, centimeters, meters) and standard imperial lengths (feet, inches, fractions). The exact conversion basis is 1 inch = 25.4 mm (exact).
How Fractional Rounding Works
Because metric and imperial systems don't always align perfectly, this tool rounds to your chosen precision. For example, rounding to the nearest 1/16" divides the inch into 16 equal segments and snaps your exact decimal measurement to the closest segment.
Worked Conversion Examples
- 25 mm ≈ 1" (0.984")
- 16 mm ≈ 5/8" (0.630")
- 6' 2 1/2" = 1892.3 mm
Common Conversions Q&A
Is 16 mm 5/8 inch?
Yes, 16 mm is commonly referred to as 5/8 inch in hardware. Exactly 5/8" is 15.875 mm, meaning 16 mm is only a 0.125 mm difference.
What is 3/4 inch in mm?
3/4 inch is exactly 19.05 mm.
What is 10 mm in inches?
10 mm is exactly 0.3937 inches, which rounds closely to 3/8" (0.375").