MM → Inches
225 mm to inches
225 millimeters equals 8.858268 inches — or about 8 7/8" (nearest 1/16″).
Decimal
8.8583 in
Fraction
8 7/8"
Centimeters
22.5 cm
Feet
0.7382 ft
mm
8.858268
in≈ 8 7/8" (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 = 225 ÷ 25.4 = 8.858268
Why 225 mm = 8.8583 in
Since 1 inch is defined as exactly 25.4 millimeters, 225 mm converts to 8.858268 inches. Rounded to the nearest 1/16″ that's 8 7/8", which is what you'd read off a standard imperial ruler.