01 · Volume

Aquarium volume calculator - litres, gallons, glass thickness.

Type in the outer length, width, and height. Subtract the substrate. Get net liters, US gallons, surface area, footprint, and a sensible single-pane glass thickness – instantly, in your browser.

Dimensions
Unsafe Limit Safe
Net volume
57.6litres
Gross64.8 L
Min glass6 mm
Deflection0.23 mm
Surface18 dm²
Footprint60×30
Substrate7.2 L
Glass weight
12.3 kg
Total (glass + water)
70 kg
Cut list (mm)
  • Frente600×360
  • Rear600×360
  • Left288×360
  • Right288×360
  • Bottom588×288
Save to tank →
Como se monta

Cinco painéis, uma caixa

O painel da base assenta horizontalmente – o fundo sobre o qual todos os outros painéis são colados com silicone.

How aquarium volume is calculated

Aquarium volume is just length × width × height. The trick is that aquarists almost always quote a tank by its gross volume – the headline number on the box – when what actually matters for stocking, dosing, and water changes is the net volume: gross minus everything that isn't water.

Substrate displaces real water – a 5 cm sand bed in a 60 × 30 cm tank steals 9 litres. Rocks and wood take more. Equipment (heater, internal filter, CO₂ diffuser) eats a litre or two. Real-world net volume usually runs 80–90% of the headline figure.

Glass thickness - a sensible rule

Hydrostatic pressure rises with depth, not surface area. The classic rule of thumb is height in cm ÷ 18 rounded up, with a safety factor of about 3.8. A 36 cm tall tank wants 4 mm glass; a 60 cm tall tank wants 6 mm. Tempered (toughened) glass is stiffer, but if it ever fails, it fails catastrophically – annealed is the safer choice for home aquariums.

Como calculo o volume do aquário em litros?
Introduza o comprimento × largura × altura exterior em cm. A calculadora subtrai a espessura do vidro de cada painel para obter a cavidade interna de retenção de água e, em seguida, subtrai a deslocação do substrato para o volume líquido.
Devo utilizar dimensões interiores ou exteriores?
Utilize as medições exteriores – o que lê numa fita métrica à volta do exterior do aquário. A calculadora remove a espessura do vidro para calcular a cavidade de retenção de água, uma vez que o vidro não contém água.
Qual deve ser a espessura do vidro do meu aquário?
Uma regra prática comum é a altura (cm) ÷ 18 = espessura em mm, com um fator de segurança de ~3.8.
Porque é que o meu volume real é inferior ao que a calculadora indica?
O substrato, as rochas, a madeira e o equipamento reduzem o volume real. A maioria dos aquários retém 80-90% do volume bruto após a decoração (aquascaping).
Como converto litros para galões americanos?
Multiplique os litros por 0.264172.

Related guides

The Secrets of the Nano Aquarium: Aquascaping for Small Spaces

The Secrets of the Nano Aquarium: Aquascaping for Small Spaces

A practical guide to successfully setting up and maintaining an aquarium under 30 litres: the right equipment, proportionate fish and plants, aquascaping principles and how to manage the challenges of small volumes.

· 6 min read Guide
EN IT
Try another

Three more little maths machines.

Keep your calculations somewhere they belong.

Create a tank, save this result to it, and log readings without retyping the maths.

Newsletter

Aquarium tips, straight to your inbox.

Practical tips, new calculators, and the occasional product update. That's it.

  • Just 2 emails a month
  • No spam, ever
  • Unsubscribe in one click