MM → Inches
266 mm to inches
266 millimeters equals 10.472441 inches — or about 10 1/2" (nearest 1/16″).
Decimal
10.4724 in
Fraction
10 1/2"
Centimeters
26.6 cm
Feet
0.8727 ft
mm
10.472441
in≈ 10 1/2" (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 = 266 ÷ 25.4 = 10.472441
Why 266 mm = 10.4724 in
Since 1 inch is defined as exactly 25.4 millimeters, 266 mm converts to 10.472441 inches. Rounded to the nearest 1/16″ that's 10 1/2", which is what you'd read off a standard imperial ruler.