Calculate the Area of a Trapezoid

This will calculate the area of a trapezoid if you know its height and the length of its top and bottom.

Length of Top
Length of Bottom
Height
Area
300

Area of a Trapezoid Formula

The area of a trapezoid is one half its height times the sum of its top and bottom

Area =  1  * Height * (Top + Bottom)
2

Area of a Trapezoid Conversion Table
TopBottomHeightArea
1211.5
1223.0
1234.5
1246.0
1257.5
1312.0
1324.0
1336.0
1348.0
13510.0
1412.5
1425.0
1437.5
14410.0
14512.5
1513.0
1526.0
1539.0
15412.0
15515.0
1613.5
1627.0
16310.5
16414.0
16517.5
1714.0
1728.0
17312.0
17416.0
17520.0
1814.5
1829.0
18313.5
18418.0
18522.5
1915.0
19210.0
19315.0
19420.0
19525.0
11015.5
110211.0
110316.5
110422.0
110527.5
2312.5
2325.0
2337.5
23410.0
23512.5
2413.0
2426.0
2439.0
24412.0
24515.0
2513.5
2527.0
25310.5
25414.0
25517.5
2614.0
2628.0
26312.0
26416.0
26520.0
2714.5
2729.0
27313.5
27418.0
27522.5
2815.0
28210.0
28315.0
28420.0
28525.0
TopBottomHeightArea
2915.5
29211.0
29316.5
29422.0
29527.5
21016.0
210212.0
210318.0
210424.0
210530.0
3413.5
3427.0
34310.5
34414.0
34517.5
3514.0
3528.0
35312.0
35416.0
35520.0
3614.5
3629.0
36313.5
36418.0
36522.5
3715.0
37210.0
37315.0
37420.0
37525.0
3815.5
38211.0
38316.5
38422.0
38527.5
3916.0
39212.0
39318.0
39424.0
39530.0
31016.5
310213.0
310319.5
310426.0
310532.5
4514.5
4529.0
45313.5
45418.0
45522.5
4615.0
46210.0
46315.0
46420.0
46525.0
4715.5
47211.0
47316.5
47422.0
47527.5
4816.0
48212.0
48318.0
48424.0
48530.0
4916.5
49213.0
49319.5
49426.0
49532.5
41017.0
410214.0
410321.0
410428.0
410535.0
TopBottomHeightArea
5615.5
56211.0
56316.5
56422.0
56527.5
5716.0
57212.0
57318.0
57424.0
57530.0
5816.5
58213.0
58319.5
58426.0
58532.5
5917.0
59214.0
59321.0
59428.0
59535.0
51017.5
510215.0
510322.5
510430.0
510537.5
6716.5
67213.0
67319.5
67426.0
67532.5
6817.0
68214.0
68321.0
68428.0
68535.0
6917.5
69215.0
69322.5
69430.0
69537.5
61018.0
610216.0
610324.0
610432.0
610540.0
7817.5
78215.0
78322.5
78430.0
78537.5
7918.0
79216.0
79324.0
79432.0
79540.0
71018.5
710217.0
710325.5
710434.0
710542.5
8918.5
89217.0
89325.5
89434.0
89542.5
81019.0
810218.0
810327.0
810436.0
810545.0
91019.5
910219.0
910328.5
910438.0
910547.5