IBC tote capacity

Capacity in every unit

Size	US gallons	Litres	55 gal drums	Imperial gallons
135 gal	135	about 511	about 2½	about 112
275 gal	275	1,040	5	about 229
330 gal	330	1,250	6	about 275
350 gal	350	about 1,325	about 6½	about 291
550 gal	550	about 2,082	10	about 458

One US gallon is 3.785 litres and one imperial gallon 4.546 litres. The 275 and 330 litre figures are the design sizes the trade uses (Wikipedia, IBC); the others are converted.

Rated capacity and what you can put in

The plate on a composite or plastic tote shows its rated capacity in litres of water at 20 °C (49 CFR 178.703(b)). That is the design volume, not a fill target. Liquids expand when they warm, and a tote filled to the brim in a cool plant can be under pressure after a day on a hot trailer.

For hazmat liquids the rule is explicit: leave enough room that at a mean product temperature of 50 °C (122 °F) the IBC is not more than 98 percent full (49 CFR 173.35(d)). How much room that means depends on how much your product expands; water expands little, solvents a lot more. Your filling procedure or the product's supplier will have the figure.

Capacity versus weight

A dense product can run out of gross mass before it runs out of volume. A 275 gallon tote of a product with specific gravity 1.8 holds about 4,130 lb of product. Whether that is allowed depends on the maximum permissible gross mass on the plate and the specific gravity rating, Y1.6 or Y1.9. See specific gravity ratings and tote weight.

Reading the level

Natural HDPE bottles are translucent, and many have a moulded gallon or litre scale on the side, so you can read the level through the cage. A black or UV-blocking bottle hides the level; if you need to see it, ask for a natural bottle or plan to dip or weigh the tote. Stainless IBCs need a sight tube or a dip stick through the manway.

Converting your product to totes

Most plants know their product in pounds or kilograms, not gallons. To turn a weight into a tote count, divide by the product's density: pounds ÷ (8.34 × specific gravity) gives US gallons. A 2,000 lb order of a liquid with a specific gravity of 1.25 is about 192 gallons, which fits in one 275 gallon tote with ample headspace. A 6,000 lb order of the same product is about 576 gallons: two 330s, or three 275s if you would rather not run the larger size.

Going the other way, a buyer who orders by volume should ask the shipper for the net weight per tote, because that is what appears on the bill of lading and what the freight is weighed on. If you ship by the litre to an export customer, 1,000 litres in a 275 gallon tote leaves about 40 litres of headspace; 1,000 litres in a 330 leaves about 250.

Tell us how you measure your product, and we will size the tote and work the count with you.

Headspace for foaming and settling

Some products need more room than the expansion rule leaves. Detergents, surfactant blends and some fermenting liquids foam when pumped in, so fill slowly, from the bottom with a lance, and stop short. Suspensions and slurries settle in transit, and a tote filled to the brim may need stirring or recirculation before use, which needs headspace too. Ask your product's maker what fill level they recommend, and size the tote so that level still holds the batch you need.

For outbound product, state the net contents on the label and the bill of lading, not the tote's nominal size, so your customer knows exactly what arrived.

Short answers

How many litres is a 275 gallon tote?

About 1,040 litres. It is the 1,000 litre tote of the European trade.

How many litres is a 330 gallon tote?

About 1,250 litres.

Can I fill a tote to the top?

Not for hazmat liquids: it must be no more than 98 percent full at 50 °C (122 °F). For any product, leave room for it to expand in warm weather.

How many pounds of water does a 275 gallon tote hold?

About 2,290 lb (275 × 8.34). A product heavier than water weighs more in proportion to its specific gravity.

How many gallons are in a tote that is half full?

Read the moulded scale on a natural bottle, or measure the liquid depth: because the base is sloped, the bottom few inches hold a little less than a straight-sided tank would.

What is the biggest tote I can get?

A rigid IBC can be up to 3 cubic metres, about 793 gallons. Above that, the container counts as a portable tank under US rules.

Is a 1,000 litre tote the same as a 275 gallon tote?

In the trade, yes: a 1,000 litre IBC is sold in the US as a 275 gallon tote, though 275 gallons is closer to 1,040 litres.

Why does my tote hold less than the label says?

Fill to the level your procedure sets, not the brim, and remember the sloped base and the valve stub keep a small volume below the outlet. Nominal size describes the design, not the usable volume.

Can totes hold powders?

Rigid totes for liquids are not designed for powders; flexible bulk bags and rigid IBCs coded for solids exist for that purpose.