A Cheat Sheet to Fish Tank Gallon Sizes and Dimensions

Fish Tank Measurements With Standard Shapes Firstly I will be listing the dimensions and gallon capacities of the most popular aquariums with a standard rectangular shape. After that, I will list the branded tanks with irregular shapes and sizes . Here are the dimensions and gallon sizes of all standard fish tanks: Small Standard Aquariums You'd want to avoid getting a small tank if you're ...

Aquarium dimensions and overall aquarium sizes may vary depending on the manufacturer's calculation. When you buy a tank the actual aquarium dimensions of one brand of the tank may be larger or smaller than the aquarium dimensions for the same gallon tank size . Even the trim type or color may change the aquarium dimensions of a tank.
Aquarium Sizes

I've personally run tanks from 5 to 125 gallons across freshwater and saltwater over 25 years — and the biggest mistake I see is beginners going too small. Here's my complete breakdown of every standard aquarium size with honest pros, cons, and recommendations.
Every common aquarium size with gallons , filled weight, glass thickness, heater wattage, and substrate — standard glass, IM NUVO, Waterbox, Reefer.

Aquarium Volume by Size Gallons and Litres for Standard Tank Sizes
Standard aquarium sizes with exact calculated water volume in gallons and liters. See why advertised gallon ratings differ from actual usable water volume.
Aquarium Weights & Sizes Aquarium Weights & Sizes Below are some rough guidelines as to what to expect when looking at aquariums and empty vs full weight. The weights are an estimate because the amount of rock, thickness of glass and type of water all effect the weight calculations.

Aquarium Size Calculator Standard Tank Dimensions Chart
The aquarium size calculator helps you find your tank's volume, dimensions and weight in seconds. Pick a standard aquarium size from the list or enter your own length, width and height to get the volume in gallons and liters plus an estimated filled weight.
Free online aquarium volume calculator to help you estimate how much water you need to fill an aquarium (fish tank) of given dimensions. Aquarium size calculator that outputs the volume and water needed in gallons or liters (litres). How many gallons of water you need to fill an aquarium ? You can enter the dimensions in imperial (feet, yards) or metric units (cm, meters).

Most Common Aquarium Sizes Chart (Dimensions And Weight)
Here's the chart; Aquarium Sizes Chart (Dimensions And Weight) ... The above information is for most standard glass aquarium sizes and weights. If you are considering an acrylic tank, they are available in many of the same sizes , they will just weigh a little less.






Every standard aquarium size in one chart — L x W x H dimensions, empty & full weights, and expert tips to pick the right tank for your space and fish.