5 x 21 inches in centimeters | 5 in × 21 in to cm
Length and area calculator
FAQ on length by width inches to centimeters
What is the area of a square measuring 5 × 21 inches in sq in?
Area = length × width (formula)
Area = 5 × 21 = 105 in2
What is the area of a square measuring 5 × 21 inches in square centimeters?
A = L × W (formula)
Area = (5 × 2.54) × (21 × 2.54) = 12.7 × 53.3 =
Area = 677 cm2
What is 5 × 21 in in cm?
5 × 21 inches = (5 × 2.54) × (21 × 2.54) = 12.7 × 53.3 centimeters
- Note 1: In all calculations above, we used 2.54 as the conversion factor to transform each length from inches to cm.
- Note 2: The results above may be approximate because, in some cases, we rounded to three significant figures.