Pets

Aquarium Volume & Stocking Calculator

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate fish tank volume in gallons. See maximum fish stocking levels and filter flow rate for your aquarium.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Calculating Aquarium Volume
Fish Stocking Guidelines

Volume et Poids

L × l × H (cm) ÷ 1 000 = litres. L'eau pèse 1 kg/litre. Un aquarium de 200 litres plein : 200 kg + substrat + verre = 240+ kg. Vérifiez que votre meuble supporte le poids. Le volume réel est 10-15% inférieur au nominal (substrat et décor déplacent l'eau).

Population

Guide conservateur : 1 cm de poisson adulte par 2 litres. 100 litres : ~50 cm de poissons. Recherchez TOUJOURS la taille ADULTE. Ne commencez jamais avec un aquarium de moins de 60 litres — les petits volumes sont les plus difficiles à maintenir.

⚡ CalcWolf Insight

Fish tank calculator gets steady year-round traffic (15K/mo) with a dedicated hobbyist audience. Aquarium hobbyists are high-spending consumers — the average aquarium setup costs $500-2,000, and ongoing supplies are $30-50/month. Pet supply advertisers (Petco, Chewy) pay $3-8 CPC.

Frequently asked questions

Volume de mon aquarium ?▾

L × l × H en cm ÷ 1 000 = litres. 80×35×45 = 126 litres.

Combien de poissons ?▾

1 cm de poisson adulte par 2 litres. 100 litres ≈ 50 cm de poissons totaux. Commencez par moins et ajoutez progressivement.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →