Area of a 3″ x 7″ Rectangle
How big is a 3 inch by 7 inch rectangle? Size of a 3 x 7 rectangle in inches squared.
Area of a 3″ x 7″ rectangle
| 21 | square inches |
| 0.14583 | square feet |
| 0.016204 | square yards |
| 135.48 | square centimeters |
| 0.013548 | square meters |
results may be rounded
Area of a Rectangle Formula
The area of a rectangle is its width times its height.
Area = Width * Height
Compute the size of something whose dimensions are 3 inches by 7 inches. For example, a 3x7 inch tin, tile, picture frame, or piece of paper. To get the area of a box, multiply the length by the width. This calculator also takes units into account and will show the result in inches², cm², ft², and m².
Area by Length of Sides
results may be rounded
| Sides |
in2 |
ft2 |
cm2 |
| 3.0″ x 7.0″ |
21 |
0.1458 |
135.5 |
| 3.0″ x 7.1″ |
21.3 |
0.1479 |
137.4 |
| 3.0″ x 7.2″ |
21.6 |
0.15 |
139.4 |
| 3.0″ x 7.3″ |
21.9 |
0.1521 |
141.3 |
| 3.0″ x 7.4″ |
22.2 |
0.1542 |
143.2 |
| 3.0″ x 7.5″ |
22.5 |
0.1563 |
145.2 |
| 3.0″ x 7.6″ |
22.8 |
0.1583 |
147.1 |
| 3.0″ x 7.7″ |
23.1 |
0.1604 |
149.0 |
| 3.0″ x 7.8″ |
23.4 |
0.1625 |
151.0 |
| 3.0″ x 7.9″ |
23.7 |
0.1646 |
152.9 |
| 3.1″ x 7.0″ |
21.7 |
0.1507 |
140.0 |
| 3.1″ x 7.1″ |
22.01 |
0.1528 |
142.0 |
| 3.1″ x 7.2″ |
22.32 |
0.155 |
144.0 |
| 3.1″ x 7.3″ |
22.63 |
0.1572 |
146.0 |
| 3.1″ x 7.4″ |
22.94 |
0.1593 |
148.0 |
| 3.1″ x 7.5″ |
23.25 |
0.1615 |
150.0 |
| 3.1″ x 7.6″ |
23.56 |
0.1636 |
152.0 |
| 3.1″ x 7.7″ |
23.87 |
0.1658 |
154.0 |
| 3.1″ x 7.8″ |
24.18 |
0.1679 |
156.0 |
| 3.1″ x 7.9″ |
24.49 |
0.1701 |
158.0 |
| 3.2″ x 7.0″ |
22.4 |
0.1556 |
144.5 |
| 3.2″ x 7.1″ |
22.72 |
0.1578 |
146.6 |
| 3.2″ x 7.2″ |
23.04 |
0.16 |
148.6 |
| 3.2″ x 7.3″ |
23.36 |
0.1622 |
150.7 |
| 3.2″ x 7.4″ |
23.68 |
0.1644 |
152.8 |
| 3.2″ x 7.5″ |
24 |
0.1667 |
154.8 |
| 3.2″ x 7.6″ |
24.32 |
0.1689 |
156.9 |
| 3.2″ x 7.7″ |
24.64 |
0.1711 |
159.0 |
| 3.2″ x 7.8″ |
24.96 |
0.1733 |
161.0 |
| 3.2″ x 7.9″ |
25.28 |
0.1756 |
163.1 |
| 3.3″ x 7.0″ |
23.1 |
0.1604 |
149.0 |
| 3.3″ x 7.1″ |
23.43 |
0.1627 |
151.2 |
| 3.3″ x 7.2″ |
23.76 |
0.165 |
153.3 |
| 3.3″ x 7.3″ |
24.09 |
0.1673 |
155.4 |
| 3.3″ x 7.4″ |
24.42 |
0.1696 |
157.5 |
| 3.3″ x 7.5″ |
24.75 |
0.1719 |
159.7 |
| 3.3″ x 7.6″ |
25.08 |
0.1742 |
161.8 |
| 3.3″ x 7.7″ |
25.41 |
0.1765 |
163.9 |
| 3.3″ x 7.8″ |
25.74 |
0.1788 |
166.1 |
| 3.3″ x 7.9″ |
26.07 |
0.1810 |
168.2 |
| 3.4″ x 7.0″ |
23.8 |
0.1653 |
153.5 |
| 3.4″ x 7.1″ |
24.14 |
0.1676 |
155.7 |
| 3.4″ x 7.2″ |
24.48 |
0.17 |
157.9 |
| 3.4″ x 7.3″ |
24.82 |
0.1724 |
160.1 |
| 3.4″ x 7.4″ |
25.16 |
0.1747 |
162.3 |
| 3.4″ x 7.5″ |
25.5 |
0.1771 |
164.5 |
| 3.4″ x 7.6″ |
25.84 |
0.1794 |
166.7 |
| 3.4″ x 7.7″ |
26.18 |
0.1818 |
168.9 |
| 3.4″ x 7.8″ |
26.52 |
0.1842 |
171.1 |
| 3.4″ x 7.9″ |
26.86 |
0.1865 |
173.3 |
| Sides |
in2 |
ft2 |
cm2 |
| 3.5″ x 7.0″ |
24.5 |
0.1701 |
158.1 |
| 3.5″ x 7.1″ |
24.85 |
0.1726 |
160.3 |
| 3.5″ x 7.2″ |
25.2 |
0.175 |
162.6 |
| 3.5″ x 7.3″ |
25.55 |
0.1774 |
164.8 |
| 3.5″ x 7.4″ |
25.9 |
0.1799 |
167.1 |
| 3.5″ x 7.5″ |
26.25 |
0.1823 |
169.4 |
| 3.5″ x 7.6″ |
26.6 |
0.1847 |
171.6 |
| 3.5″ x 7.7″ |
26.95 |
0.1872 |
173.9 |
| 3.5″ x 7.8″ |
27.3 |
0.1896 |
176.1 |
| 3.5″ x 7.9″ |
27.65 |
0.1920 |
178.4 |
| 3.6″ x 7.0″ |
25.2 |
0.175 |
162.6 |
| 3.6″ x 7.1″ |
25.56 |
0.1775 |
164.9 |
| 3.6″ x 7.2″ |
25.92 |
0.18 |
167.2 |
| 3.6″ x 7.3″ |
26.28 |
0.1825 |
169.5 |
| 3.6″ x 7.4″ |
26.64 |
0.185 |
171.9 |
| 3.6″ x 7.5″ |
27 |
0.1875 |
174.2 |
| 3.6″ x 7.6″ |
27.36 |
0.19 |
176.5 |
| 3.6″ x 7.7″ |
27.72 |
0.1925 |
178.8 |
| 3.6″ x 7.8″ |
28.08 |
0.195 |
181.2 |
| 3.6″ x 7.9″ |
28.44 |
0.1975 |
183.5 |
| 3.7″ x 7.0″ |
25.9 |
0.1799 |
167.1 |
| 3.7″ x 7.1″ |
26.27 |
0.1824 |
169.5 |
| 3.7″ x 7.2″ |
26.64 |
0.185 |
171.9 |
| 3.7″ x 7.3″ |
27.01 |
0.1876 |
174.3 |
| 3.7″ x 7.4″ |
27.38 |
0.1901 |
176.6 |
| 3.7″ x 7.5″ |
27.75 |
0.1927 |
179.0 |
| 3.7″ x 7.6″ |
28.12 |
0.1953 |
181.4 |
| 3.7″ x 7.7″ |
28.49 |
0.1978 |
183.8 |
| 3.7″ x 7.8″ |
28.86 |
0.2004 |
186.2 |
| 3.7″ x 7.9″ |
29.23 |
0.2030 |
188.6 |
| 3.8″ x 7.0″ |
26.6 |
0.1847 |
171.6 |
| 3.8″ x 7.1″ |
26.98 |
0.1874 |
174.1 |
| 3.8″ x 7.2″ |
27.36 |
0.19 |
176.5 |
| 3.8″ x 7.3″ |
27.74 |
0.1926 |
179.0 |
| 3.8″ x 7.4″ |
28.12 |
0.1953 |
181.4 |
| 3.8″ x 7.5″ |
28.5 |
0.1979 |
183.9 |
| 3.8″ x 7.6″ |
28.88 |
0.2006 |
186.3 |
| 3.8″ x 7.7″ |
29.26 |
0.2032 |
188.8 |
| 3.8″ x 7.8″ |
29.64 |
0.2058 |
191.2 |
| 3.8″ x 7.9″ |
30.02 |
0.2085 |
193.7 |
| 3.9″ x 7.0″ |
27.3 |
0.1896 |
176.1 |
| 3.9″ x 7.1″ |
27.69 |
0.1923 |
178.6 |
| 3.9″ x 7.2″ |
28.08 |
0.195 |
181.2 |
| 3.9″ x 7.3″ |
28.47 |
0.1977 |
183.7 |
| 3.9″ x 7.4″ |
28.86 |
0.2004 |
186.2 |
| 3.9″ x 7.5″ |
29.25 |
0.2031 |
188.7 |
| 3.9″ x 7.6″ |
29.64 |
0.2058 |
191.2 |
| 3.9″ x 7.7″ |
30.03 |
0.2085 |
193.7 |
| 3.9″ x 7.8″ |
30.42 |
0.2113 |
196.3 |
| 3.9″ x 7.9″ |
30.81 |
0.2140 |
198.8 |