MM → Inches
118 mm to inches
118 millimeters equals 4.645669 inches — or about 4 5/8" (nearest 1/16″).
Decimal
4.6457 in
Fraction
4 5/8"
Centimeters
11.8 cm
Feet
0.3871 ft
mm
4.645669
in≈ 4 5/8" (nearest 1/16)
1 in = 25.4 mm · tolerance ±0.0001
Formula
To convert mm to inches, divide by 25.4:
inches = mm ÷ 25.4
inches = 118 ÷ 25.4 = 4.645669
Why 118 mm = 4.6457 in
Since 1 inch is defined as exactly 25.4 millimeters, 118 mm converts to 4.645669 inches. Rounded to the nearest 1/16″ that's 4 5/8", which is what you'd read off a standard imperial ruler.