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18 x 9 inches in centimeters | 18 in × 9 in to cm

Length and area calculator

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Short answer

18 in × 9 in = 45.7 cm × 22.9 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,

18 times 2.54 = 45.7

9 times 2.54 = 22.9

Thus,

18 × 9 in inches = 45.7 × 22.9 in centimeters

Or

18 × 9 inches = 1050 cm2 (square centimeters in terms of area).

FAQ on length by width inches to centimeters

What is the area of a square measuring 18 × 9 inches in sq in?

Area = length × width (formula)

Area = 18 × 9 = 162 in2

What is the area of a square measuring 18 × 9 inches in square centimeters?

A = L × W (formula)

Area = (18 × 2.54) × (9 × 2.54) = 45.7 × 22.9 =

Area = 1050 cm2

What is 18 × 9 in in cm?

18 × 9 inches = (18 × 2.54) × (9 × 2.54) = 45.7 × 22.9 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