10mm = 1cm so divide 45 by 10 and you get the answer: 4.5cm
45mm
45 mm = 4.5 cm
45mm
1.77165 inches
4.5cm = 45mm = 4,500um
1mm = 0.1cm 45mm = 4.5cm
6800 cm
A 35mm x 45mm photo is equivalent to 3.5cm x 4.5cm. To convert millimeters to centimeters, you divide by 10, so 35mm becomes 3.5cm and 45mm becomes 4.5cm.
10 mm in 1 cm 45cm(10mm) =450mm
25 cm equals about 10 inches
40cm
45mm x 55mm is approx 1.77in x 2.17in 25.4mm = 1in ⇒ 45mm = 45 ÷ 25.4 in ≈ 1.77in ⇒ 55mm = 55 ÷ 25.4 in ≈ 2.17in