Chem-Tainer tank sizes
The capacity and the printed size of 167 Chem-Tainer tanks, in 10 tables from the 2025 catalog: upright cylinders, rectangular tanks and elliptical horizontal tanks. The figures are copied from the catalog. 3 rows have a size that does not agree with the capacity. They are marked, not changed.
Not sure which tank you have? Find my tank compares your measurements with every tank on this page.
Tables: Vertical bulk storage tanks · Vertical water storage tanks · Open top, flat bottom cylindrical tanks · Brine tanks · Lightweight cylindrical tanks · Double wall bulk storage tanks · Oil-Tainer double wall oil tanks · Rectangular tanks · Freestanding water tanks · Elliptical horizontal bulk storage tanks
How to use these tables
- Find the type of your tank: upright, box-shaped or lying on its side.
- For a round tank, wrap a tape around the widest point. Divide the result by 3.1416 to get the diameter.
- Measure the overall height. For a box or an elliptical tank, also measure the length and the width.
- Find the row with the nearest sizes.
- Confirm the tank with the label or the maker's paperwork. The catalog gives no part numbers.
- For an upright tank, multiply the liquid depth in inches by the gallons per inch to estimate the volume in the straight wall.
The gallons per inch uses the printed diameter. If that is an outside size, the real value is a little lower. A domed top holds less per inch than the straight wall. For a full chart, use the vertical tank calculator or the dome top tank calculator with your measured sizes.
“Gallonage/ size disclaimer volume and unit measurements are subject to variances due to thermal expansion, contraction and general molding tolerances.” — Chem-Tainer 2025 catalog
The catalog bases its specific gravity ratings on a product temperature of 70 °F. Ask the maker before you store a hot liquid or a heavy chemical.
Vertical bulk storage tanks (30 sizes)
Upright tanks with a domed top for chemicals and water. The catalog says that over 75 more sizes are available, up to 20,000 gal.
| Capacity (gal) | Diameter | Height | Gal/in (approx.) |
|---|---|---|---|
| 45 | 18" (457 mm) | 51" (1295 mm) | 1.1 |
| 75 | 23" (584 mm) | 49" (1245 mm) | 1.8 |
| 100 | 23" (584 mm) | 64" (1626 mm) | 1.8 |
| 165 | 31" (787 mm) | 58" (1473 mm) | 3.3 |
| 200 | 31" (787 mm) | 72" (1829 mm) | 3.3 |
| 300 | 36" (914 mm) | 78" (1981 mm) | 4.4 |
| 500 | 46" (1168 mm) | 76" (1930 mm) | 7.2 |
| 650 | 56" (1422 mm) | 70" (1778 mm) | 10.7 |
| 750 | 46" (1168 mm) | 119" (3023 mm) | 7.2 |
| 850 | 48" (1219 mm) | 124" (3150 mm) | 7.8 |
| 1,000 | 64" (1626 mm) | 81" (2057 mm) | 13.9 |
| 1,200 | 86" (2184 mm) | 52" (1321 mm) | 25.1 |
| 1,500 | 64" (1626 mm) | 121" (3073 mm) | 13.9 |
| 2,000 | 64" (1626 mm) | 144" (3658 mm) | 13.9 |
| 2,200 | 86" (2184 mm) | 96" (2438 mm) | 25.1 |
| 2,500 | 92" (2337 mm) | 95" (2413 mm) | 28.8 |
| 2,800 | 95" (2413 mm) | 98" (2489 mm) | 30.7 |
| 3,200 | 95" (2413 mm) | 112" (2845 mm) | 30.7 |
| 3,600 | 86" (2184 mm) | 156" (3962 mm) | 25.1 |
| 4,000 | 95" (2413 mm) | 140" (3556 mm) | 30.7 |
| 4,500 | 95" (2413 mm) | 156" (3962 mm) | 30.7 |
| 5,000 | 102" (2591 mm) | 152" (3861 mm) | 35.4 |
| 5,600 | 120" (3048 mm) | 138" (3505 mm) | 49.0 |
| 6,500 | 119" (3023 mm) | 150" (3810 mm) | 48.1 |
| 7,800 | 120" (3048 mm) | 178" (4521 mm) | 49.0 |
| 9,000 | 141" (3581 mm) | 146" (3708 mm) | 67.6 |
| 10,500 | 142" (3607 mm) | 175" (4445 mm) | 68.6 |
| 12,000 | 141" (3581 mm) | 192" (4877 mm) | 67.6 |
| 15,000 | 141" (3581 mm) | 244" (6198 mm) | 67.6 |
| 20,000 | 165" (4191 mm) | 242" (6147 mm) | 92.6 |
Vertical water storage tanks (16 sizes)
Upright tanks for water storage. Some sizes are the same as a vertical bulk tank.
| Capacity (gal) | Diameter | Height | Gal/in (approx.) |
|---|---|---|---|
| 45 | 18" (457 mm) | 51" (1295 mm) | 1.1 |
| 120 | 38" (965 mm) | 31" (787 mm) | 4.9 |
| 165 | 31" (787 mm) | 58" (1473 mm) | 3.3 |
| 305 | 46" (1168 mm) | 50" (1270 mm) | 7.2 |
| 500 | 46" (1168 mm) | 76" (1930 mm) | 7.2 |
| 600 | 64" (1626 mm) | 50" (1270 mm) | 13.9 |
| 1,000 | 64" (1626 mm) | 81" (2057 mm) | 13.9 |
| 1,500 | 95" (2413 mm) | 58" (1473 mm) | 30.7 |
| 2,000 | 90" (2286 mm) | 84" (2134 mm) | 27.5 |
| 2,500 | 95" (2413 mm) | 91" (2311 mm) | 30.7 |
| 3,000 | 95" (2413 mm) | 109" (2769 mm) | 30.7 |
| 5,000 | 102" (2591 mm) | 152" (3861 mm) | 35.4 |
| 10,000 | 141" (3581 mm) | 161" (4089 mm) | 67.6 |
| 11,000 | 144" (3658 mm) | 167" (4242 mm) | 70.5 |
| 12,000 | 142" (3607 mm) | 203" (5156 mm) | 68.6 |
| 15,500 | 141" (3581 mm) | 244" (6198 mm) | 67.6 |
Open top, flat bottom cylindrical tanks (26 sizes)
Upright tanks with an open top and a flat bottom. Use a cover if the liquid must stay clean.
| Capacity (gal) | Diameter | Height | Gal/in (approx.) |
|---|---|---|---|
| 5 | 11" (279 mm) | 14" (356 mm) | 0.4 |
| 10 | 13" (330 mm) | 21" (533 mm) | 0.6 |
| 15 1 | 15" (381 mm) | 19" (483 mm) | 0.8 |
| 25 | 14" (356 mm) | 40" (1016 mm) | 0.7 |
| 30 | 18" (457 mm) | 29" (737 mm) | 1.1 |
| 40 | 18" (457 mm) | 40" (1016 mm) | 1.1 |
| 55 | 22" (559 mm) | 36" (914 mm) | 1.6 |
| 73 | 30" (762 mm) | 24" (610 mm) | 3.1 |
| 90 | 24" (610 mm) | 48" (1219 mm) | 2.0 |
| 100 | 28" (711 mm) | 42" (1067 mm) | 2.7 |
| 150 | 31" (787 mm) | 48" (1219 mm) | 3.3 |
| 200 | 36" (914 mm) | 48" (1219 mm) | 4.4 |
| 275 | 42" (1067 mm) | 48" (1219 mm) | 6.0 |
| 325 | 36" (914 mm) | 74" (1880 mm) | 4.4 |
| 360 | 48" (1219 mm) | 48" (1219 mm) | 7.8 |
| 440 | 52" (1321 mm) | 48" (1219 mm) | 9.2 |
| 500 | 52" (1321 mm) | 60" (1524 mm) | 9.2 |
| 650 | 48" (1219 mm) | 84" (2134 mm) | 7.8 |
| 700 | 55" (1397 mm) | 70" (1778 mm) | 10.3 |
| 800 | 60" (1524 mm) | 66" (1676 mm) | 12.2 |
| 950 | 78" (1981 mm) | 46" (1168 mm) | 20.7 |
| 1,000 | 66" (1676 mm) | 72" (1829 mm) | 14.8 |
| 1,250 | 69" (1753 mm) | 84" (2134 mm) | 16.2 |
| 1,500 | 73" (1854 mm) | 84" (2134 mm) | 18.1 |
| 2,000 | 84" (2134 mm) | 84" (2134 mm) | 24.0 |
| 2,450 | 95" (2413 mm) | 84" (2134 mm) | 30.7 |
Brine tanks (11 sizes)
Open tanks for brine. Most sizes are the same as an open top tank.
| Capacity (gal) | Diameter | Height | Gal/in (approx.) |
|---|---|---|---|
| 30 | 18" (457 mm) | 29" (737 mm) | 1.1 |
| 40 | 18" (457 mm) | 40" (1016 mm) | 1.1 |
| 55 | 22" (559 mm) | 36" (914 mm) | 1.6 |
| 85 | 28" (711 mm) | 32" (813 mm) | 2.7 |
| 90 | 24" (610 mm) | 48" (1219 mm) | 2.0 |
| 100 | 28" (711 mm) | 42" (1067 mm) | 2.7 |
| 150 | 31" (787 mm) | 48" (1219 mm) | 3.3 |
| 200 | 36" (914 mm) | 48" (1219 mm) | 4.4 |
| 275 | 42" (1067 mm) | 48" (1219 mm) | 6.0 |
| 360 | 48" (1219 mm) | 48" (1219 mm) | 7.8 |
| 500 | 52" (1321 mm) | 60" (1524 mm) | 9.2 |
Lightweight cylindrical tanks (10 sizes)
Small upright tanks from 5 to 55 gal.
| Capacity (gal) | Diameter | Height | Gal/in (approx.) |
|---|---|---|---|
| 5 | 11" (279 mm) | 14" (356 mm) | 0.4 |
| 7 | 10" (254 mm) | 21" (533 mm) | 0.3 |
| 8 2 | 12" (305 mm) | 16" (406 mm) | 0.5 |
| 10 | 13" (330 mm) | 21" (533 mm) | 0.6 |
| 12 | 15" (381 mm) | 16" (406 mm) | 0.8 |
| 15 3 | 15" (381 mm) | 19" (483 mm) | 0.8 |
| 16 | 14" (356 mm) | 27" (686 mm) | 0.7 |
| 30 | 18" (457 mm) | 29" (737 mm) | 1.1 |
| 40 | 19" (483 mm) | 40" (1016 mm) | 1.2 |
| 55 | 22" (559 mm) | 36" (914 mm) | 1.6 |
Double wall bulk storage tanks (19 sizes)
A primary tank inside a second tank. The capacity is the primary tank. The size is the outside of the outer tank, so a cylinder of that size holds much more than the rating.
| Capacity (gal) | Diameter | Height | Gal/in (approx.) |
|---|---|---|---|
| 35 | 24" (610 mm) | 35" (889 mm) | 2.0 |
| 50 | 27" (686 mm) | 38" (965 mm) | 2.5 |
| 65 | 28" (711 mm) | 37" (940 mm) | 2.7 |
| 100 | 35" (889 mm) | 39" (991 mm) | 4.2 |
| 120 | 33" (838 mm) | 45" (1143 mm) | 3.7 |
| 150 | 34" (864 mm) | 48" (1219 mm) | 3.9 |
| 200 | 41" (1041 mm) | 52" (1321 mm) | 5.7 |
| 350 | 52" (1321 mm) | 56" (1422 mm) | 9.2 |
| 500 | 59" (1499 mm) | 71" (1803 mm) | 11.8 |
| 1,000 | 74" (1880 mm) | 85" (2159 mm) | 18.6 |
| 2,000 | 86" (2184 mm) | 156" (3962 mm) | 25.1 |
| 3,000 | 120" (3048 mm) | 116" (2946 mm) | 49.0 |
| 4,000 | 120" (3048 mm) | 165" (4191 mm) | 49.0 |
| 5,000 | 120" (3048 mm) | 181" (4597 mm) | 49.0 |
| 6,000 | 120" (3048 mm) | 198" (5029 mm) | 49.0 |
| 6,500 | 120" (3048 mm) | 199" (5055 mm) | 49.0 |
| 8,700 | 142" (3607 mm) | 187" (4750 mm) | 68.6 |
| 10,000 | 142" (3607 mm) | 226" (5740 mm) | 68.6 |
| 12,500 | 142" (3607 mm) | 274" (6960 mm) | 68.6 |
Oil-Tainer double wall oil tanks (6 sizes)
Double wall tanks for oil. The size is the outside of the outer tank.
| Capacity (gal) | Diameter | Height | Gal/in (approx.) |
|---|---|---|---|
| 100 | 35" (889 mm) | 41" (1041 mm) | 4.2 |
| 150 | 34" (864 mm) | 49" (1245 mm) | 3.9 |
| 200 | 41" (1041 mm) | 53" (1346 mm) | 5.7 |
| 385 | 64" (1626 mm) | 42" (1067 mm) | 13.9 |
| 500 | 53" (1346 mm) | 79" (2007 mm) | 9.6 |
| 1,000 | 81" (2057 mm) | 69" (1753 mm) | 22.3 |
Rectangular tanks (29 sizes)
Box-shaped tanks. The gallons per inch is length × width ÷ 231, by the outside size.
| Capacity (gal) | Length | Width | Height | Gal/in (approx.) |
|---|---|---|---|---|
| 2 | 8" (203 mm) | 8" (203 mm) | 8" (203 mm) | 0.28 |
| 3 | 6" (152 mm) | 12" (305 mm) | 12" (305 mm) | 0.31 |
| 7 | 12" (305 mm) | 12" (305 mm) | 12" (305 mm) | 0.62 |
| 12 4 | 12" (305 mm) | 18" (457 mm) | 12" (305 mm) | 0.94 |
| 14 | 12" (305 mm) | 12" (305 mm) | 24" (610 mm) | 0.62 |
| 15 | 12" (305 mm) | 24" (610 mm) | 12" (305 mm) | 1.25 |
| 23 5 | 18" (457 mm) | 24" (610 mm) | 12" (305 mm) | 1.87 |
| 25 | 18" (457 mm) | 18" (457 mm) | 18" (457 mm) | 1.40 |
| 30 6 | 12" (305 mm) | 18" (457 mm) | 30" (762 mm) | 0.94 |
| 30 | 12" (305 mm) | 24" (610 mm) | 24" (610 mm) | 1.25 |
| 30 | 24" (610 mm) | 24" (610 mm) | 12" (305 mm) | 2.49 |
| 45 | 12" (305 mm) | 30" (762 mm) | 30" (762 mm) | 1.56 |
| 46 | 30" (762 mm) | 30" (762 mm) | 12" (305 mm) | 3.90 |
| 50 | 18" (457 mm) | 18" (457 mm) | 36" (914 mm) | 1.40 |
| 56 | 18" (457 mm) | 24" (610 mm) | 30" (762 mm) | 1.87 |
| 60 | 24" (610 mm) | 24" (610 mm) | 24" (610 mm) | 2.49 |
| 60 | 24" (610 mm) | 48" (1219 mm) | 12" (305 mm) | 4.99 |
| 61 7 | 36" (914 mm) | 36" (914 mm) | 36" (914 mm) | 5.61 |
| 70 | 18" (457 mm) | 30" (762 mm) | 30" (762 mm) | 2.34 |
| 90 | 18" (457 mm) | 24" (610 mm) | 48" (1219 mm) | 1.87 |
| 90 8 | 24" (610 mm) | 36" (914 mm) | 12" (305 mm) | 3.74 |
| 112 | 24" (610 mm) | 30" (762 mm) | 36" (914 mm) | 3.12 |
| 115 | 30" (762 mm) | 30" (762 mm) | 30" (762 mm) | 3.90 |
| 120 | 24" (610 mm) | 24" (610 mm) | 48" (1219 mm) | 2.49 |
| 184 | 30" (762 mm) | 30" (762 mm) | 48" (1219 mm) | 3.90 |
| 185 | 36" (914 mm) | 36" (914 mm) | 36" (914 mm) | 5.61 |
| 260 | 36" (914 mm) | 36" (914 mm) | 48" (1219 mm) | 5.61 |
| 265 | 36" (914 mm) | 72" (1829 mm) | 24" (610 mm) | 11.22 |
| 400 | 36" (914 mm) | 72" (1829 mm) | 36" (914 mm) | 11.22 |
Freestanding water tanks (10 sizes)
Upright tanks with a flat, narrow shape and rounded corners. A box of the printed size holds about 30% to 60% more than the rating.
| Capacity (gal) | Length | Width | Height |
|---|---|---|---|
| 100 | 38" (965 mm) | 22" (559 mm) | 45" (1143 mm) |
| 250 | 62" (1575 mm) | 29" (737 mm) | 44" (1118 mm) |
| 250 | 59" (1499 mm) | 25" (635 mm) | 54" (1372 mm) |
| 300 | 66" (1676 mm) | 29" (737 mm) | 50" (1270 mm) |
| 400 | 66" (1676 mm) | 29" (737 mm) | 70" (1778 mm) |
| 500 | 74" (1880 mm) | 31" (787 mm) | 68" (1727 mm) |
| 500 | 74" (1880 mm) | 31" (787 mm) | 70" (1778 mm) |
| 750 | 82" (2083 mm) | 35" (889 mm) | 85" (2159 mm) |
| 1,000 | 92" (2337 mm) | 40" (1016 mm) | 89" (2261 mm) |
| 2,400 | 150" (3810 mm) | 90" (2286 mm) | 53" (1346 mm) |
Elliptical horizontal bulk storage tanks (10 sizes)
Tanks that lie on their side, with an elliptical end shape. The size is printed as length × width × height. In two rows the first figure is smaller than the second. The table keeps the printed order.
| Capacity (gal) | Length | Width | Height |
|---|---|---|---|
| 335 | 71" (1803 mm) | 48" (1219 mm) | 33" (838 mm) |
| 500 | 57" (1448 mm) | 82" (2083 mm) | 36" (914 mm) |
| 500 | 73" (1854 mm) | 53" (1346 mm) | 42" (1067 mm) |
| 1,000 | 145" (3683 mm) | 53" (1346 mm) | 45" (1143 mm) |
| 1,235 | 128" (3251 mm) | 65" (1651 mm) | 52" (1321 mm) |
| 1,600 | 78" (1981 mm) | 138" (3505 mm) | 49" (1245 mm) |
| 2,035 | 140" (3556 mm) | 90" (2286 mm) | 72" (1829 mm) |
| 2,635 9 | 142" (3607 mm) | 82" (2083 mm) | 56" (1422 mm) |
| 3,135 | 151" (3835 mm) | 88" (2235 mm) | 76" (1930 mm) |
| 4,035 | 192" (4877 mm) | 92" (2337 mm) | 75" (1905 mm) |
Rows that do not agree with the geometry
Each row was checked. The tool calculates the volume of a plain cylinder, box or elliptical section of the printed size, and compares it with the rating. An outside size must give a little more than the rating. These rows do not:
- Open top, flat bottom cylindrical tanks, 15 gal (row open-top-15): As a cylinder, the printed size holds 14.5 gal, a little less than the rated 15 gal. The rating is probably rounded.
- Lightweight cylindrical tanks, 8 gal (row lightweight-8): As a cylinder, the printed size holds 7.8 gal, a little less than the rated 8 gal. The rating is probably rounded.
- Lightweight cylindrical tanks, 15 gal (row lightweight-15): As a cylinder, the printed size holds 14.5 gal, a little less than the rated 15 gal. The rating is probably rounded.
- Rectangular tanks, 12 gal (row rectangular-12): As a box, the printed size holds 11.2 gal, a little less than the rated 12 gal. The rating is probably rounded.
- Rectangular tanks, 23 gal (row rectangular-23): As a box, the printed size holds 22.4 gal, a little less than the rated 23 gal. The rating is probably rounded.
- Rectangular tanks, 30 gal (row rectangular-30): As a box, the printed size holds 28.1 gal, a little less than the rated 30 gal. The rating is probably rounded.
- Rectangular tanks, 61 gal (row rectangular-61): As a box, the printed size holds about 202 gal, not 61 gal. One of the two printed figures is probably wrong. The 185 gal row has the same printed size.
- Rectangular tanks, 90 gal (row rectangular-90-2): As a box, the printed size holds about 45 gal, not 90 gal. One of the two printed figures is probably wrong.
- Elliptical horizontal bulk storage tanks, 2,635 gal (row elliptical-2635): As an elliptical section, the printed size holds about 2,217 gal, not 2,635 gal. One of the two printed figures is probably wrong.
The values are shown as printed. Ask Chem-Tainer for the correct figure before you buy or fit a tank from a marked row.
What is not on this page
- Cone bottom, inductor and tapered tanks. Use the cone bottom calculator or the tapered tank calculator with your measured sizes.
- Round horizontal (leg) tanks, transport tanks, pick-up truck tanks, drum liners, basins and carry barrels.
- Sizes that are only on the maker's website. The catalog says more sizes are available there.
tankvolumecalc.com is not affiliated with Chem-Tainer Industries. All figures are as the maker prints them.
FAQ
Are the Chem-Tainer sizes inside or outside dimensions?
The catalog does not say. Use them as outside sizes. The inside is smaller by the wall thickness, and most upright tanks have a domed top.
Why does a Chem-Tainer tank of the printed size hold more than its rating?
The printed size is the outside of the tank. The walls, the domed top and the rounded corners take up volume. For a double wall tank, the size is the outer tank, but the rating is the inner tank.
Which Chem-Tainer tanks are not on this page?
Cone bottom, inductor, tapered, transport, horizontal leg and pick-up truck tanks are not on this page. Their shapes need more measurements than the catalog gives. The catalog also says that more sizes are on the maker's website.
Cite this page
Copy a reference for this page. The data on this page comes from the maker's own documents. Also cite the document in the sources list.
Sri Murugan Systems. (2026, November 1). Chem-Tainer tank sizes: All 2025 catalog dimensions. tankvolumecalc.com. https://tankvolumecalc.com/tanks/chemtainer/
@misc{srimurugansystems2026chemtainer,
author = {{Sri Murugan Systems}},
title = {{Chem-Tainer Tank Sizes: All 2025 Catalog Dimensions}},
year = {2026},
month = nov,
howpublished = {\url{https://tankvolumecalc.com/tanks/chemtainer/}},
url = {https://tankvolumecalc.com/tanks/chemtainer/},
note = {tankvolumecalc.com, accessed 2026-11-01}
}Last updated 1 November 2026.
Sources and standards
- Chem-Tainer 2025 CatalogChem-Tainer Industries, Inc. — manufacturerhttps://chemtainer.com/wp-content/uploads/2025/08/ChemTainer_2025Catalog_082525.pdfPDF created 12 June 2025, 2 pages
Every linked source above was retrieved and checked on 2026-11-01.