length
(in.) x width (in.) x height (in.) ÷ 231 =
Volume in U.S. gallons
Volume calculation for round tanks U. S.
gallons per one foot of depth
Diameter
of tank
No. of U.S. gallons
Cu Ft. and Area
in Sq. Ft.
FT
IN
1
0
5.87
0.785
1
1
6.89
0.922
1
2
8
1.069
1
3
9.18
1.227
1
4
10.44
1.396
1
5
11.79
1.576
1
6
13.22
1.767
1
7
14.73
1.969
1
8
16.32
2.182
1
9
17.99
2.405
1
10
19.75
2.64
1
11
21.58
2.885
2
0
23.5
3.142
2
1
25.5
3.409
2
2
27.58
3.687
2
3
29.74
3.976
2
4
31.99
4.276
2
5
34.31
4.587
2
6
36.72
4.909
2
7
39.21
5.241
2
8
41.78
5.585
2
9
44.43
5.94
2
10
47.16
6.305
2
11
49.98
6.681
3
0
52.88
7.069
3
1
55.86
7.467
3
2
58.92
7.876
3
3
62.06
8.296
3
4
65.28
8.727
3
5
68.58
9.168
3
6
71.97
9.621
3
7
75.44
10.085
3
8
78.99
10.559
3
9
82.62
11.045
3
10
86.33
11.541
3
11
90.13
12.048
4
0
94
12.566
4
1
97.96
13.095
4
2
102
13.635
4
3
106.12
14.186
4
4
110.32
14.748
4
5
114.61
15.321
4
6
118.97
15.9
4
7
123.42
16.5
4
8
127.95
17.1
4
9
132.56
17.72
4
10
137.25
18.35
4
11
142.02
18.99
5
0
146.88
19.63
5
1
151.82
20.29
5
2
156.83
20.97
5
3
161.93
21.65
5
4
167.12
22.34
5
5
172.38
23.04
5
6
177.72
23.76
5
7
183.15
24.48
5
8
188.66
25.22
5
9
194.25
25.97
5
10
199.92
26.73
5
11
205.67
27.49
6
0
211.51
28.27
6
3
229.5
30.68
6
6
248.23
33.18
6
9
267.69
35.78
7
0
287.88
38.48
7
3
308.81
41.28
7
6
330.48
44.18
7
9
352.88
47.17
8
0
376.01
50.27
8
3
399.88
53.46
8
6
424.48
56.75
8
9
449.82
60.13
9
0
475.89
63.62
9
3
502.7
67.2
9
6
530.24
70.88
9
9
558.51
74.66
10
0
587.52
78.54
10
3
617.26
82.52
10
6
640.74
86.59
10
9
678.95
90.76
11
0
710.9
95.03
11
3
743.58
99.4
11
6
776.99
103.87
11
9
811.14
108.43
12
0
846.03
113.1
12
3
881.65
117.86
12
6
918
122.72
12
9
955.09
127.68
13
0
992.91
132.73
13
3
1031.5
137.89
13
6
1070.8
143.14
13
9
1110.8
148.49
14
0
1151.5
153.94
14
3
1193
159.48
14
6
1235.3
165.13
14
9
1278.2
170.87
15
0
1321.9
176.71
15
3
1366.4
182.65
15
6
1411.5
188.69
15
9
1457.4
194.83
16
0
1504.1
201.06
16
3
1551.4
207.39
16
6
1599.5
213.82
16
9
1648.4
220.35
17
0
1697.9
226.98
17
3
1748.2
233.71
17
6
1799.3
240.53
17
9
1851.1
247.45
18
0
1903.6
254.47
18
3
1956.8
261.59
18
6
2010.8
268.8
18
9
2065.5
276.12
19
0
2120.9
283.53
19
3
2177.1
291.4
19
6
2234
298.65
19
9
2291.7
306.35
20
0
2350.1
314.16
20
3
2409.2
322.06
20
6
2469.1
330.06
20
9
2529.6
338.16
21
0
2591
346.36
21
3
2653
354.66
21
6
2715.8
363.05
21
9
2779.3
371.54
22
0
2843.6
380.13
22
3
2908.6
388.82
22
6
2974.3
397.61
22
9
3040.8
406.49
23
0
3108
415.48
23
3
3175.9
424.56
23
6
3244.6
433.74
23
9
3314
443.01
24
0
3384.1
452.39
24
3
3455
461.86
24
6
3526.6
471.44
24
9
3598.9
481.11
25
0
3672
490.87
25
3
3745.8
500.74
25
6
3820.3
510.71
25
9
3895.6
520.77
26
0
3971.6
530.93
26
3
4048.4
541.19
26
6
4125.9
551.55
26
9
4204.1
562
27
0
4283
572.66
27
3
4362.7
583.21
27
6
4443.1
593.96
27
9
4524.3
604.81
28
0
4606.2
615.75
28
3
4688.8
626.8
28
6
4772.1
637.94
28
9
4856.2
649.19
29
0
4941
660.52
29
3
5026.6
671.96
29
6
5112.9
683.49
29
9
5199.9
695.13
30
0
5287.7
706.86
30
3
5376.2
718.69
30
6
5465.4
730.62
30
9
5555.4
742.64
31
0
5646.1
754.77
31
3
5737.5
766.99
31
6
5829.7
779.31
31
9
5922.6
791.73
32
0
6016.2
804.25
32
3
6110.6
816.86
32
6
6205.7
829.58
32
9
6301.5
842.39
To find the capacity of tanks greater than
the largest given in the table, look in the table for a tank of one-half
of the given size and multiply its capacity by 4, or one of one-third its
size and multiply capacity by 9, etc.
