MM → Inches
1080 mm to inches
1080 millimeters equals 42.519685 inches — or about 42 1/2" (nearest 1/16″).
Decimal
42.5197 in
Fraction
42 1/2"
Centimeters
108 cm
Feet
3.5433 ft
mm
42.519685
in≈ 42 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 = 1080 ÷ 25.4 = 42.519685
Why 1080 mm = 42.5197 in
Since 1 inch is defined as exactly 25.4 millimeters, 1080 mm converts to 42.519685 inches. Rounded to the nearest 1/16″ that's 42 1/2", which is what you'd read off a standard imperial ruler.