How do you convert square centimeters to square millimeters?
Multiply by 100, not 10. A square centimetre is 10 mm by 10 mm, so it holds 100 mm², and 3.5 cm² is 350 mm².
The 10 that works for lengths gets squared once you're dealing with area, which is the mistake most people make here. A 2 cm by 3 cm label is 6 cm², or 600 mm² – and 20 mm times 30 mm gets you the same.
What are Square Centimeters?
A square centimeter is the area of a square 1 centimeter on each side, which is 100 square millimeters or 0.0001 square meters. A postage stamp is a few square centimeters.
What are Square Millimeters?
A square millimeter is the area of a square one millimeter on each side, so there are 100 in a square centimeter and 1,000,000 in a square meter. Electrical cable is sized by cross-section in them – 1.5mm² and 2.5mm² are common.