Millimeters to inches
18 mm = 0.7087"
or 45/64" as a fraction · 0.709"
Inches
0.7087
inFraction
45/64"
Feet & inches
0.709"
Formula
18 ÷ 25.4
Tip: click or drag on the ruler to set the value.
How to convert
Divide the millimeter value by 25.4 to get inches.
18 mm ÷ 25.4 = 0.708661 inches
Quick facts
- Decimal inches0.7087"
- Fractional inches45/64"
- Feet + inches0.709"
- Centimeters1.8 cm
- Meters0.018 m