Area of a 18′ x 20′ Rectangle
What is the square footage of a 18 foot by 20 foot rectangle? How big is a 18 x 20 rectangle? 18 ft by 20 ft room in square feet.
Area of a 18′ x 20′ rectangle
| 360 | square feet |
| 51,840 | square inches |
| 40 | square yards |
| 0.0082645 | acres |
| 33.445 | square meters |
| 334,450 | square centimeters |
| 0.0033445 | hectares |
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 18 feet by 20 feet. For example, a 18x20 foot room, apartment, office, or yard. To get the area of a box, multiply the height 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 |
ft2 |
in2 |
m2 |
| 18′0″ x 20′0″ |
360 |
51,840 |
33.45 |
| 18′0″ x 20′1″ |
361.5 |
52,056 |
33.58 |
| 18′0″ x 20′2″ |
363 |
52,272 |
33.72 |
| 18′0″ x 20′3″ |
364.5 |
52,488 |
33.86 |
| 18′0″ x 20′4″ |
366 |
52,704 |
34.00 |
| 18′0″ x 20′5″ |
367.5 |
52,920 |
34.14 |
| 18′0″ x 20′6″ |
369 |
53,136 |
34.28 |
| 18′0″ x 20′7″ |
370.5 |
53,352 |
34.42 |
| 18′0″ x 20′8″ |
372 |
53,568 |
34.56 |
| 18′0″ x 20′9″ |
373.5 |
53,784 |
34.70 |
| 18′0″ x 20′10″ |
375 |
54,000 |
34.84 |
| 18′0″ x 20′11″ |
376.5 |
54,216 |
34.98 |
| 18′1″ x 20′0″ |
361.7 |
52,080 |
33.60 |
| 18′1″ x 20′1″ |
363.2 |
52,297 |
33.74 |
| 18′1″ x 20′2″ |
364.7 |
52,514 |
33.88 |
| 18′1″ x 20′3″ |
366.2 |
52,731 |
34.02 |
| 18′1″ x 20′4″ |
367.7 |
52,948 |
34.16 |
| 18′1″ x 20′5″ |
369.2 |
53,165 |
34.30 |
| 18′1″ x 20′6″ |
370.7 |
53,382 |
34.44 |
| 18′1″ x 20′7″ |
372.2 |
53,599 |
34.58 |
| 18′1″ x 20′8″ |
373.7 |
53,816 |
34.72 |
| 18′1″ x 20′9″ |
375.2 |
54,033 |
34.86 |
| 18′1″ x 20′10″ |
376.7 |
54,250 |
35.00 |
| 18′1″ x 20′11″ |
378.2 |
54,467 |
35.14 |
| 18′2″ x 20′0″ |
363.3 |
52,320 |
33.75 |
| 18′2″ x 20′1″ |
364.8 |
52,538 |
33.90 |
| 18′2″ x 20′2″ |
366.4 |
52,756 |
34.04 |
| 18′2″ x 20′3″ |
367.9 |
52,974 |
34.18 |
| 18′2″ x 20′4″ |
369.4 |
53,192 |
34.32 |
| 18′2″ x 20′5″ |
370.9 |
53,410 |
34.46 |
| 18′2″ x 20′6″ |
372.4 |
53,628 |
34.60 |
| 18′2″ x 20′7″ |
373.9 |
53,846 |
34.74 |
| 18′2″ x 20′8″ |
375.4 |
54,064 |
34.88 |
| 18′2″ x 20′9″ |
377.0 |
54,282 |
35.02 |
| 18′2″ x 20′10″ |
378.5 |
54,500 |
35.16 |
| 18′2″ x 20′11″ |
380.0 |
54,718 |
35.30 |
| 18′3″ x 20′0″ |
365 |
52,560 |
33.91 |
| 18′3″ x 20′1″ |
366.5 |
52,779 |
34.05 |
| 18′3″ x 20′2″ |
368.0 |
52,998 |
34.19 |
| 18′3″ x 20′3″ |
369.6 |
53,217 |
34.33 |
| 18′3″ x 20′4″ |
371.1 |
53,436 |
34.47 |
| 18′3″ x 20′5″ |
372.6 |
53,655 |
34.62 |
| 18′3″ x 20′6″ |
374.1 |
53,874 |
34.76 |
| 18′3″ x 20′7″ |
375.6 |
54,093 |
34.90 |
| 18′3″ x 20′8″ |
377.2 |
54,312 |
35.04 |
| 18′3″ x 20′9″ |
378.7 |
54,531 |
35.18 |
| 18′3″ x 20′10″ |
380.2 |
54,750 |
35.32 |
| 18′3″ x 20′11″ |
381.7 |
54,969 |
35.46 |
| 18′4″ x 20′0″ |
366.7 |
52,800 |
34.06 |
| 18′4″ x 20′1″ |
368.2 |
53,020 |
34.21 |
| 18′4″ x 20′2″ |
369.7 |
53,240 |
34.35 |
| 18′4″ x 20′3″ |
371.3 |
53,460 |
34.49 |
| 18′4″ x 20′4″ |
372.8 |
53,680 |
34.63 |
| 18′4″ x 20′5″ |
374.3 |
53,900 |
34.77 |
| 18′4″ x 20′6″ |
375.8 |
54,120 |
34.92 |
| 18′4″ x 20′7″ |
377.4 |
54,340 |
35.06 |
| 18′4″ x 20′8″ |
378.9 |
54,560 |
35.20 |
| 18′4″ x 20′9″ |
380.4 |
54,780 |
35.34 |
| 18′4″ x 20′10″ |
381.9 |
55,000 |
35.48 |
| 18′4″ x 20′11″ |
383.5 |
55,220 |
35.63 |
| 18′5″ x 20′0″ |
368.3 |
53,040 |
34.22 |
| 18′5″ x 20′1″ |
369.9 |
53,261 |
34.36 |
| 18′5″ x 20′2″ |
371.4 |
53,482 |
34.50 |
| 18′5″ x 20′3″ |
372.9 |
53,703 |
34.65 |
| 18′5″ x 20′4″ |
374.5 |
53,924 |
34.79 |
| 18′5″ x 20′5″ |
376.0 |
54,145 |
34.93 |
| 18′5″ x 20′6″ |
377.5 |
54,366 |
35.07 |
| 18′5″ x 20′7″ |
379.1 |
54,587 |
35.22 |
| 18′5″ x 20′8″ |
380.6 |
54,808 |
35.36 |
| 18′5″ x 20′9″ |
382.1 |
55,029 |
35.50 |
| 18′5″ x 20′10″ |
383.7 |
55,250 |
35.65 |
| 18′5″ x 20′11″ |
385.2 |
55,471 |
35.79 |
| Sides |
ft2 |
in2 |
m2 |
| 18′6″ x 20′0″ |
370 |
53,280 |
34.37 |
| 18′6″ x 20′1″ |
371.5 |
53,502 |
34.52 |
| 18′6″ x 20′2″ |
373.1 |
53,724 |
34.66 |
| 18′6″ x 20′3″ |
374.6 |
53,946 |
34.80 |
| 18′6″ x 20′4″ |
376.2 |
54,168 |
34.95 |
| 18′6″ x 20′5″ |
377.7 |
54,390 |
35.09 |
| 18′6″ x 20′6″ |
379.3 |
54,612 |
35.23 |
| 18′6″ x 20′7″ |
380.8 |
54,834 |
35.38 |
| 18′6″ x 20′8″ |
382.3 |
55,056 |
35.52 |
| 18′6″ x 20′9″ |
383.9 |
55,278 |
35.66 |
| 18′6″ x 20′10″ |
385.4 |
55,500 |
35.81 |
| 18′6″ x 20′11″ |
387.0 |
55,722 |
35.95 |
| 18′7″ x 20′0″ |
371.7 |
53,520 |
34.53 |
| 18′7″ x 20′1″ |
373.2 |
53,743 |
34.67 |
| 18′7″ x 20′2″ |
374.8 |
53,966 |
34.82 |
| 18′7″ x 20′3″ |
376.3 |
54,189 |
34.96 |
| 18′7″ x 20′4″ |
377.9 |
54,412 |
35.10 |
| 18′7″ x 20′5″ |
379.4 |
54,635 |
35.25 |
| 18′7″ x 20′6″ |
381.0 |
54,858 |
35.39 |
| 18′7″ x 20′7″ |
382.5 |
55,081 |
35.54 |
| 18′7″ x 20′8″ |
384.1 |
55,304 |
35.68 |
| 18′7″ x 20′9″ |
385.6 |
55,527 |
35.82 |
| 18′7″ x 20′10″ |
387.2 |
55,750 |
35.97 |
| 18′7″ x 20′11″ |
388.7 |
55,973 |
36.11 |
| 18′8″ x 20′0″ |
373.3 |
53,760 |
34.68 |
| 18′8″ x 20′1″ |
374.9 |
53,984 |
34.83 |
| 18′8″ x 20′2″ |
376.4 |
54,208 |
34.97 |
| 18′8″ x 20′3″ |
378 |
54,432 |
35.12 |
| 18′8″ x 20′4″ |
379.6 |
54,656 |
35.26 |
| 18′8″ x 20′5″ |
381.1 |
54,880 |
35.41 |
| 18′8″ x 20′6″ |
382.7 |
55,104 |
35.55 |
| 18′8″ x 20′7″ |
384.2 |
55,328 |
35.70 |
| 18′8″ x 20′8″ |
385.8 |
55,552 |
35.84 |
| 18′8″ x 20′9″ |
387.3 |
55,776 |
35.98 |
| 18′8″ x 20′10″ |
388.9 |
56,000 |
36.13 |
| 18′8″ x 20′11″ |
390.4 |
56,224 |
36.27 |
| 18′9″ x 20′0″ |
375 |
54,000 |
34.84 |
| 18′9″ x 20′1″ |
376.6 |
54,225 |
34.98 |
| 18′9″ x 20′2″ |
378.1 |
54,450 |
35.13 |
| 18′9″ x 20′3″ |
379.7 |
54,675 |
35.27 |
| 18′9″ x 20′4″ |
381.3 |
54,900 |
35.42 |
| 18′9″ x 20′5″ |
382.8 |
55,125 |
35.56 |
| 18′9″ x 20′6″ |
384.4 |
55,350 |
35.71 |
| 18′9″ x 20′7″ |
385.9 |
55,575 |
35.85 |
| 18′9″ x 20′8″ |
387.5 |
55,800 |
36.00 |
| 18′9″ x 20′9″ |
389.1 |
56,025 |
36.15 |
| 18′9″ x 20′10″ |
390.6 |
56,250 |
36.29 |
| 18′9″ x 20′11″ |
392.2 |
56,475 |
36.44 |
| 18′10″ x 20′0″ |
376.7 |
54,240 |
34.99 |
| 18′10″ x 20′1″ |
378.2 |
54,466 |
35.14 |
| 18′10″ x 20′2″ |
379.8 |
54,692 |
35.29 |
| 18′10″ x 20′3″ |
381.4 |
54,918 |
35.43 |
| 18′10″ x 20′4″ |
382.9 |
55,144 |
35.58 |
| 18′10″ x 20′5″ |
384.5 |
55,370 |
35.72 |
| 18′10″ x 20′6″ |
386.1 |
55,596 |
35.87 |
| 18′10″ x 20′7″ |
387.7 |
55,822 |
36.01 |
| 18′10″ x 20′8″ |
389.2 |
56,048 |
36.16 |
| 18′10″ x 20′9″ |
390.8 |
56,274 |
36.31 |
| 18′10″ x 20′10″ |
392.4 |
56,500 |
36.45 |
| 18′10″ x 20′11″ |
393.9 |
56,726 |
36.60 |
| 18′11″ x 20′0″ |
378.3 |
54,480 |
35.15 |
| 18′11″ x 20′1″ |
379.9 |
54,707 |
35.29 |
| 18′11″ x 20′2″ |
381.5 |
54,934 |
35.44 |
| 18′11″ x 20′3″ |
383.1 |
55,161 |
35.59 |
| 18′11″ x 20′4″ |
384.6 |
55,388 |
35.73 |
| 18′11″ x 20′5″ |
386.2 |
55,615 |
35.88 |
| 18′11″ x 20′6″ |
387.8 |
55,842 |
36.03 |
| 18′11″ x 20′7″ |
389.4 |
56,069 |
36.17 |
| 18′11″ x 20′8″ |
390.9 |
56,296 |
36.32 |
| 18′11″ x 20′9″ |
392.5 |
56,523 |
36.47 |
| 18′11″ x 20′10″ |
394.1 |
56,750 |
36.61 |
| 18′11″ x 20′11″ |
395.7 |
56,977 |
36.76 |