Calculate the Area of a Rectangle

This will calculate the square footage of a rectangle based on the length of its sides.
Length of Side A
cm
Length of Side B
cm
Length of Side A
ft
in
Length of Side B
ft
in
Length of Side A
meters
Length of Side B
meters
Length of Side A
yards
Length of Side B
yards
Units
Area of a 3′ x 4′ rectangle
12square feet
1,728square inches
1.3333square yards
1.1148square meters
11,148square centimeters
results may be rounded

Area of a Rectangle Formula

The area of a rectangle is its width times its height.

Area = Width * Height

Width Height
Browse by Size in Feet
1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 1 x 10
1 x 11 1 x 12 1 x 13 1 x 14 1 x 15 1 x 16 1 x 17 1 x 18 1 x 19 1 x 20
2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 2 x 10 2 x 11
2 x 12 2 x 13 2 x 14 2 x 15 2 x 16 2 x 17 2 x 18 2 x 19 2 x 20 3 x 3
3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 3 x 9 3 x 10 3 x 11 3 x 12 3 x 13
3 x 14 3 x 15 3 x 16 3 x 17 3 x 18 3 x 19 3 x 20 4 x 4 4 x 5 4 x 6
4 x 7 4 x 8 4 x 9 4 x 10 4 x 11 4 x 12 4 x 13 4 x 14 4 x 15 4 x 16
4 x 17 4 x 18 4 x 19 4 x 20 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 5 x 10
5 x 11 5 x 12 5 x 13 5 x 14 5 x 15 5 x 16 5 x 17 5 x 18 5 x 19 5 x 20
6 x 6 6 x 7 6 x 8 6 x 9 6 x 10 6 x 11 6 x 12 6 x 13 6 x 14 6 x 15
6 x 16 6 x 17 6 x 18 6 x 19 6 x 20 7 x 7 7 x 8 7 x 9 7 x 10 7 x 11
7 x 12 7 x 13 7 x 14 7 x 15 7 x 16 7 x 17 7 x 18 7 x 19 7 x 20 8 x 8
8 x 9 8 x 10 8 x 11 8 x 12 8 x 13 8 x 14 8 x 15 8 x 16 8 x 17 8 x 18
8 x 19 8 x 20 9 x 9 9 x 10 9 x 11 9 x 12 9 x 13 9 x 14 9 x 15 9 x 16
9 x 17 9 x 18 9 x 19 9 x 20 10 x 10 10 x 11 10 x 12 10 x 13 10 x 14 10 x 15
10 x 16 10 x 17 10 x 18 10 x 19 10 x 20 11 x 11 11 x 12 11 x 13 11 x 14 11 x 15
11 x 16 11 x 17 11 x 18 11 x 19 11 x 20 12 x 12 12 x 13 12 x 14 12 x 15 12 x 16
12 x 17 12 x 18 12 x 19 12 x 20 13 x 13 13 x 14 13 x 15 13 x 16 13 x 17 13 x 18
13 x 19 13 x 20 14 x 14 14 x 15 14 x 16 14 x 17 14 x 18 14 x 19 14 x 20 15 x 15
15 x 16 15 x 17 15 x 18 15 x 19 15 x 20 16 x 16 16 x 17 16 x 18 16 x 19 16 x 20
17 x 17 17 x 18 17 x 19 17 x 20 18 x 18 18 x 19 18 x 20 19 x 19 19 x 20 20 x 20
Browse by Size in Inches
1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 1 x 10
1 x 11 1 x 12 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9
2 x 10 2 x 11 2 x 12 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 3 x 9
3 x 10 3 x 11 3 x 12 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 4 x 10
4 x 11 4 x 12 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 5 x 10 5 x 11 5 x 12
6 x 6 6 x 7 6 x 8 6 x 9 6 x 10 6 x 11 6 x 12 7 x 7 7 x 8 7 x 9
7 x 10 7 x 11 7 x 12 8 x 8 8 x 9 8 x 10 8 x 11 8 x 12 9 x 9 9 x 10
9 x 11 9 x 12 10 x 10 10 x 11 10 x 12 11 x 11 11 x 12 12 x 12
Browse by Size in Centimeters
1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 1 x 10
1 x 11 1 x 12 1 x 13 1 x 14 1 x 15 1 x 16 1 x 17 1 x 18 1 x 19 1 x 20
2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 2 x 10 2 x 11
2 x 12 2 x 13 2 x 14 2 x 15 2 x 16 2 x 17 2 x 18 2 x 19 2 x 20 3 x 3
3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 3 x 9 3 x 10 3 x 11 3 x 12 3 x 13
3 x 14 3 x 15 3 x 16 3 x 17 3 x 18 3 x 19 3 x 20 4 x 4 4 x 5 4 x 6
4 x 7 4 x 8 4 x 9 4 x 10 4 x 11 4 x 12 4 x 13 4 x 14 4 x 15 4 x 16
4 x 17 4 x 18 4 x 19 4 x 20 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 5 x 10
5 x 11 5 x 12 5 x 13 5 x 14 5 x 15 5 x 16 5 x 17 5 x 18 5 x 19 5 x 20
6 x 6 6 x 7 6 x 8 6 x 9 6 x 10 6 x 11 6 x 12 6 x 13 6 x 14 6 x 15
6 x 16 6 x 17 6 x 18 6 x 19 6 x 20 7 x 7 7 x 8 7 x 9 7 x 10 7 x 11
7 x 12 7 x 13 7 x 14 7 x 15 7 x 16 7 x 17 7 x 18 7 x 19 7 x 20 8 x 8
8 x 9 8 x 10 8 x 11 8 x 12 8 x 13 8 x 14 8 x 15 8 x 16 8 x 17 8 x 18
8 x 19 8 x 20 9 x 9 9 x 10 9 x 11 9 x 12 9 x 13 9 x 14 9 x 15 9 x 16
9 x 17 9 x 18 9 x 19 9 x 20 10 x 10 10 x 11 10 x 12 10 x 13 10 x 14 10 x 15
10 x 16 10 x 17 10 x 18 10 x 19 10 x 20 11 x 11 11 x 12 11 x 13 11 x 14 11 x 15
11 x 16 11 x 17 11 x 18 11 x 19 11 x 20 12 x 12 12 x 13 12 x 14 12 x 15 12 x 16
12 x 17 12 x 18 12 x 19 12 x 20 13 x 13 13 x 14 13 x 15 13 x 16 13 x 17 13 x 18
13 x 19 13 x 20 14 x 14 14 x 15 14 x 16 14 x 17 14 x 18 14 x 19 14 x 20 15 x 15
15 x 16 15 x 17 15 x 18 15 x 19 15 x 20 16 x 16 16 x 17 16 x 18 16 x 19 16 x 20
17 x 17 17 x 18 17 x 19 17 x 20 18 x 18 18 x 19 18 x 20 19 x 19 19 x 20 20 x 20
Browse by Size in Meters
1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 1 x 10
1 x 11 1 x 12 1 x 13 1 x 14 1 x 15 1 x 16 1 x 17 1 x 18 1 x 19 1 x 20
2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 2 x 10 2 x 11
2 x 12 2 x 13 2 x 14 2 x 15 2 x 16 2 x 17 2 x 18 2 x 19 2 x 20 3 x 3
3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 3 x 9 3 x 10 3 x 11 3 x 12 3 x 13
3 x 14 3 x 15 3 x 16 3 x 17 3 x 18 3 x 19 3 x 20 4 x 4 4 x 5 4 x 6
4 x 7 4 x 8 4 x 9 4 x 10 4 x 11 4 x 12 4 x 13 4 x 14 4 x 15 4 x 16
4 x 17 4 x 18 4 x 19 4 x 20 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 5 x 10
5 x 11 5 x 12 5 x 13 5 x 14 5 x 15 5 x 16 5 x 17 5 x 18 5 x 19 5 x 20
6 x 6 6 x 7 6 x 8 6 x 9 6 x 10 6 x 11 6 x 12 6 x 13 6 x 14 6 x 15
6 x 16 6 x 17 6 x 18 6 x 19 6 x 20 7 x 7 7 x 8 7 x 9 7 x 10 7 x 11
7 x 12 7 x 13 7 x 14 7 x 15 7 x 16 7 x 17 7 x 18 7 x 19 7 x 20 8 x 8
8 x 9 8 x 10 8 x 11 8 x 12 8 x 13 8 x 14 8 x 15 8 x 16 8 x 17 8 x 18
8 x 19 8 x 20 9 x 9 9 x 10 9 x 11 9 x 12 9 x 13 9 x 14 9 x 15 9 x 16
9 x 17 9 x 18 9 x 19 9 x 20 10 x 10 10 x 11 10 x 12 10 x 13 10 x 14 10 x 15
10 x 16 10 x 17 10 x 18 10 x 19 10 x 20 11 x 11 11 x 12 11 x 13 11 x 14 11 x 15
11 x 16 11 x 17 11 x 18 11 x 19 11 x 20 12 x 12 12 x 13 12 x 14 12 x 15 12 x 16
12 x 17 12 x 18 12 x 19 12 x 20 13 x 13 13 x 14 13 x 15 13 x 16 13 x 17 13 x 18
13 x 19 13 x 20 14 x 14 14 x 15 14 x 16 14 x 17 14 x 18 14 x 19 14 x 20 15 x 15
15 x 16 15 x 17 15 x 18 15 x 19 15 x 20 16 x 16 16 x 17 16 x 18 16 x 19 16 x 20
17 x 17 17 x 18 17 x 19 17 x 20 18 x 18 18 x 19 18 x 20 19 x 19 19 x 20 20 x 20
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