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5 x 21 inches in centimeters | 5 in × 21 in to cm

Length and area calculator

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Short answer

5 in × 21 in = 12.7 cm × 53.3 cm

Detailed answer

How to convert

To convert these dimensions from in to cm simply multiply each value by 2.54 because 1 in = 2.54 cm. So,

5 times 2.54 = 12.7

21 times 2.54 = 53.3

Thus,

5 × 21 in inches = 12.7 × 53.3 in centimeters

Or

5 × 21 inches = 677 cm2 (square centimeters in terms of area).

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.

Sample rectangles or squares conversions from inches to centmeters