Aquarium tank sizes
52 common tank dimensions with calculated water volume, filled weight, recommended glass thickness, heater wattage, and substrate. Pick a size to get every number you need before you buy.
Standard glass tanks
Aqueon/Marineland-style stock dimensions sold at every chain store. These are the sizes 'a 75 gallon' refers to.
- Standard 10 gallon20 × 10 × 12 in · 10 US gal
- 15 gallon24 × 12 × 12 in · 15 US gal
- 20 gallon high24 × 12 × 16 in · 20 US gal
- 20 gallon long30 × 12 × 12 in · 19 US gal
- Standard 29 gallon30 × 12 × 18 in · 28 US gal
- 30 gallon breeder36 × 18 × 12 in · 34 US gal
- 33 gallon long48 × 12 × 12 in · 30 US gal
- 37 gallon tall30 × 12 × 22 in · 34 US gal
- 40 gallon breeder36 × 18 × 16 in · 45 US gal
- 40 gallon long48 × 12 × 16 in · 40 US gal
- 45 gallon tall36 × 12 × 24 in · 45 US gal
- Standard 50 gallon36 × 18 × 19 in · 53 US gal
- 36 × 18 × 18 in aquarium36 × 18 × 18 in · 50 US gal
- Standard 55 gallon48 × 13 × 21 in · 57 US gal
- 65 gallon36 × 18 × 24 in · 67 US gal
- Standard 75 gallon48 × 18 × 21 in · 79 US gal
- 90 gallon48 × 18 × 24 in · 90 US gal
- 48 × 24 × 18 in aquarium48 × 24 × 18 in · 90 US gal
- 100 gallon60 × 18 × 20 in · 94 US gal
- 48 × 24 × 20 in aquarium48 × 24 × 20 in · 100 US gal
- 120 gallon48 × 24 × 24 in · 120 US gal
- 125 gallon72 × 18 × 21 in · 118 US gal
- 150 gallon72 × 18 × 28 in · 157 US gal
- 180 gallon72 × 24 × 25 in · 187 US gal
- 210 gallon72 × 24 × 30 in · 224 US gal
- 220 gallon72 × 24 × 29 in · 217 US gal
Reef-specific & rimless (Innovative Marine, Waterbox, Red Sea)
Branded all-in-one and rimless tanks designed for reefkeeping. Dimensions from manufacturer spec sheets.
- Innovative Marine NUVO 1020 × 10 × 10 in · 9 US gal
- Innovative Marine NUVO 2021 × 16 × 14 in · 20 US gal
- Innovative Marine NUVO 30L24 × 18 × 16 in · 30 US gal
- Innovative Marine NUVO 4024 × 20 × 16 in · 33 US gal
- Red Sea Reefer 17032 × 20 × 18 in · 50 US gal
- Innovative Marine NUVO 5030 × 18 × 18 in · 42 US gal
- Waterbox Rimless 50.330 × 20 × 18 in · 47 US gal
- Innovative Marine NUVO 7530 × 18 × 20 in · 47 US gal
- Red Sea Reefer 25036 × 22 × 21 in · 72 US gal
- Waterbox Rimless 85.336 × 20 × 20 in · 62 US gal
- Red Sea Reefer 35048 × 22 × 21 in · 96 US gal
- Waterbox Peninsula 100.336 × 24 × 22 in · 82 US gal
- Red Sea Reefer 525 XL60 × 24 × 24 in · 150 US gal
Nano, cube & show tanks
Specialty shapes — cubes, nanos, shallow show tanks, tall display tanks. Same calculator math, different aquascaping problem.
- 5 gallon16 × 8 × 10 in · 6 US gal
- 7-gallon cube12 × 12 × 12 in · 7 US gal
- 10 gallon long24 × 8 × 12 in · 10 US gal
- 25-gallon cube18 × 18 × 18 in · 25 US gal
- 34-gallon cube20 × 20 × 20 in · 35 US gal
- 60-gallon cube24 × 24 × 24 in · 60 US gal
- 70-gallon shallow cube30 × 30 × 18 in · 70 US gal
- 100-gallon shallow cube36 × 36 × 18 in · 101 US gal
- 110 gallon tall48 × 18 × 30 in · 112 US gal
- 300 gallon96 × 24 × 30 in · 299 US gal
By dimensions (custom builds)
Common 'I have an X by Y by Z tank' questions for custom and acrylic builds.
- 36 × 18 × 18 in aquarium36 × 18 × 18 in · 50 US gal
- 36 × 18 × 24 in aquarium36 × 18 × 24 in · 67 US gal
- 48 × 24 × 18 in aquarium48 × 24 × 18 in · 90 US gal
- 48 × 24 × 20 in aquarium48 × 24 × 20 in · 100 US gal
- 60 × 24 × 20 in aquarium60 × 24 × 20 in · 125 US gal
- 72 × 24 × 20 in aquarium72 × 24 × 20 in · 150 US gal
Don't see your tank?
Use the aquarium volume calculator for any custom dimensions, including bow-front, hex, cylinder, and cube tanks. For weight, glass, and heater sizing of custom builds, run the dedicated calculators with your own numbers.
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