MM → Inches
240 mm to inches
240 millimeters equals 9.448819 inches — or about 9 7/16" (nearest 1/16″).
Decimal
9.4488 in
Fraction
9 7/16"
Centimeters
24 cm
Feet
0.7874 ft
mm
9.448819
in≈ 9 7/16" (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 = 240 ÷ 25.4 = 9.448819
Why 240 mm = 9.4488 in
Since 1 inch is defined as exactly 25.4 millimeters, 240 mm converts to 9.448819 inches. Rounded to the nearest 1/16″ that's 9 7/16", which is what you'd read off a standard imperial ruler.