API Tank Size
API tank size is the size or capacity of a storage tank, and it is commonly associated with the American Petroleum Institute (API) standards for the design, fabrication, inspection, and testing of storage tanks used in the oil and petrochemical industry. API standards provide guidelines for the construction of various types of storage tanks, including those used for storing crude oil, refined products, and other liquids. These standards often specify the capacity or size of the tank in terms of its volume.
For example, you might hear about an API 650 tank, which refers to a storage tank that is built according to the API Standard 650. This standard covers the design and construction of large, welded, low-pressure storage tanks. The size of these tanks can vary widely, depending on the specific application and requirements of the facility.
When discussing API tank size, it's important to consider the specific API standard being referred to and the type of liquid being stored. Different standards may apply to tanks used for different purposes and materials, and the size of the tank will depend on factors such as the volume of the liquid to be stored and the characteristics of the site where the tank is located.
API Tank SizeBased on 8.337 lbs/gallon and is based on stated capacity, not total volume. |
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| Capacity (BBL) | Capacity (Gal) | Diameter | Height | # Rings | Empty Wt (Lbs) | Full Wt (Lbs) |
| 500 | 21,000 | 15'-0” | 16'-0” | 2 | 11,200 | 186,277 |
| 1,000 | 41,000 | 21'-0” | 16'-0” | 2 | 18,800 | 360,617 |
| 1,150 | 48,000 | 18'-6” | 24'-0” | 3 | 19,600 | 419,776 |
| 1,200 | 50,000 | 23'-0” | 16'-0” | 2 | 21,500 | 438,350 |
| 1,500 | 63,000 | 26'-0” | 16'-0” | 2 | 25,000 | 550,231 |
| 1,750 | 75,000 | 23'-0” | 24'-0” | 3 | 26,000 | 651,275 |
| 2,000 | 88,000 | 25'-0” | 24'-0” | 3 | 29,000 | 762,656 |
| 2,500 | 102,000 | 27'-0” | 24'-0” | 3 | 32,100 | 882,474 |
| 3,000 | 126,000 | 30'-0” | 24'-0” | 3 | 37,200 | 1,087,662 |
| 3,650 | 153,000 | 33'-0” | 24'-0” | 3 | 42,400 | 1,317,961 |
| 4,000 | 170,000 | 30'-0” | 32'-0” | 4 | 43,500 | 1,460,790 |
| 4,850 | 204,000 | 33'-0” | 32'-0” | 4 | 49,500 | 1,750,248 |
| 5,000 | 210,000 | 33'-6” | 32'-0” | 4 | 50,500 | 1,801,270 |
| 5,000 | 210,000 | 30'-0” | 40'-0” | 5 | 50,000 | 1,800,770 |
| 5,500 | 230,000 | 35'-0” | 32'-0” | 4 | 53,300 | 1,970,810 |
| 6,100 | 257,000 | 37'-0” | 32'-0” | 4 | 57,800 | 2,200,409 |
| 7,150 | 300,000 | 40'-0” | 32'-0” | 4 | 65,000 | 2,566,100 |
| 8,650 | 364,000 | 44'-0” | 32'-0” | 4 | 75,000 | 3,109,668 |
| 8,950 | 375,000 | 40'-0” | 40'-0” | 5 | 74,000 | 3,200,375 |
| 9,650 | 407,000 | 46'-6” | 32'-0” | 4 | 85,900 | 3,479,059 |
| 10,100 | 424,000 | 42'-6” | 40'-0” | 5 | 83,000 | 3,617,888 |
| 10,310 | 433,000 | 48'-0” | 32'-0” | 4 | 85,000 | 3,694,921 |
| 10,700 | 450,000 | 40'-0” | 48'-0” | 6 | 86,300 | 3,837,950 |
| 10,800 | 455,000 | 44'-0” | 40'-0” | 5 | 87,100 | 3,880,435 |
| 12,100 | 508,000 | 52'-0” | 40'-0” | 5 | 96,000 | 4,331,196 |
| 12,100 | 509,000 | 42'-6” | 32'-0” | 4 | 107,000 | 4,350,533 |
| 12,100 | 510,000 | 52'-0” | 48'-0” | 6 | 95,600 | 4,347,470 |
| 12,900 | 540,000 | 48'-0” | 40'-0” | 5 | 99,300 | 4,601,280 |
| 14,000 | 580,000 | 50'-0” | 40'-0” | 5 | 121,200 | 4,956,660 |
| 15,100 | 635,000 | 52'-0” | 40'-0” | 5 | 125,000 | 5,418,995 |
| 15,400 | 650,000 | 48'-0” | 48'-0” | 6 | 117,200 | 5,536,250 |
| 16,800 | 700,000 | 50'-0” | 48'-0” | 6 | 135,500 | 5,971,400 |
| 18,100 | 760,000 | 57'-0” | 40'-0” | 5 | 147,000 | 6,483,120 |
| 20,100 | 840,000 | 60'-0” | 40'-0” | 5 | 156,500 | 7,159,580 |
| 24,100 | 1,010,000 | 60'-0” | 48'-0” | 6 | 184,000 | 8,604,370 |
| 24,375 | 1,023,000 | 60'-0” | 40'-0” | 5 | 186,500 | 8,715,251 |
| 25,100 | 1,050,000 | 67'-0” | 40'-0” | 5 | 191,000 | 8,944,850 |
| 27,400 | 1,150,000 | 70'-0” | 40'-0” | 5 | 205,600 | 9,793,150 |
| 29,800 | 1,250,000 | 73'-0” | 40'-0” | 5 | 221,000 | 10,642,250 |
| 30,100 | 1,260,000 | 67'-0” | 48'-0” | 6 | 225,100 | 10,729,720 |
| 32,900 | 1,380,000 | 70'-0” | 48'-0” | 6 | 244,000 | 11,749,060 |
| 35,700 | 1,500,000 | 73'-0” | 48'-0” | 6 | 264,200 | 12,769,700 |
| 35,800 | 1,500,000 | 80'-0” | 40'-0” | 5 | 264,000 | 12,769,500 |
| 40,420 | 1,700,000 | 85'-0” | 40'-0” | 5 | 293,000 | 14,465,900 |
| 42,910 | 1,800,000 | 80'-0” | 48'-0” | 6 | 315,900 | 15,322,500 |
| 45,300 | 1,900,000 | 90'-0” | 40'-0” | 5 | 326,000 | 16,166,300 |
| 48,300 | 2,030,000 | 93'-0” | 40'-0” | 5 | 347,000 | 17,271,110 |
| 49,600 | 2,080,000 | 86'-0” | 48'-0” | 6 | 359,000 | 17,699,960 |
| 54,400 | 2,280,000 | 90'-0” | 48'-0” | 6 | 390,000 | 19,398,360 |
| 55,900 | 2,350,000 | 100-0” | 40'-0” | 5 | 394,000 | 19,985,950 |
| 67,100 | 2,820,000 | 100-0” | 48'-0” | 6 | 472,000 | 23,982,340 |
| 67,700 | 2,840,000 | 110'-0” | 40'-0” | 5 | 473,000 | 24,150,080 |
| 80,600 | 3,380,000 | 120'-0” | 40'-0” | 5 | 574,000 | 28,753,060 |
| 81,250 | 3,410,000 | 110'-0” | 48'-0” | 6 | 570,000 | 28,999,170 |
| 96,700 | 4,060,000 | 120'-0” | 48'-0” | 6 | 681,000 | 34,529,220 |
| 100,470 | 4,220,000 | 134'-0” | 40'-0” | 5 | 699,000 | 35,881,140 |
| 109,700 | 4,600,000 | 140'-0” | 40'-0” | 5 | 965,000 | 39,315,200 |
| 120,560 | 5,060,000 | 134'-0” | 48'-0” | 6 | 846,000 | 43,031,220 |
| 125,900 | 5,290,000 | 150'-0” | 40'-0” | 5 | 871,000 | 44,973,730 |
| 131,600 | 5,530,000 | 140'-0” | 48'-0” | 6 | 920,000 | 47,023,610 |
| 143,200 | 6,020,000 | 160'-0” | 40'-0” | 5 | 985,000 | 51,173,740 |
| 151,000 | 6,350,000 | 150'-0” | 48'-0” | 6 | 1,050,000 | 53,989,950 |
