MM → Inches
155 mm to inches
155 millimeters equals 6.102362 inches — or about 6 1/8" (nearest 1/16″).
Decimal
6.1024 in
Fraction
6 1/8"
Centimeters
15.5 cm
Feet
0.5085 ft
mm
6.102362
in≈ 6 1/8" (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 = 155 ÷ 25.4 = 6.102362
Why 155 mm = 6.1024 in
Since 1 inch is defined as exactly 25.4 millimeters, 155 mm converts to 6.102362 inches. Rounded to the nearest 1/16″ that's 6 1/8", which is what you'd read off a standard imperial ruler.