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 e Peso

C × L × A (cm) ÷ 1.000 = litros. Água pesa 1 kg/litro. Aquário de 200 litros cheio: 200 kg + substrato + vidro = 240+ kg. Verifique se o móvel aguenta. Volume real é 10-15% menor que o nominal (substrato e decoração deslocam água).

População

Guia conservador: 1 cm de peixe adulto por 2 litros. 100 litros: ~50 cm. Pesquise SEMPRE o tamanho ADULTO. Nunca comece com aquário menor que 60 litros — volumes pequenos são os mais difíceis.

⚡ 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 do meu aquário?▾

C × L × A em cm ÷ 1.000 = litros. 80×35×45 = 126 litros.

Quantos peixes?▾

1 cm de peixe adulto por 2 litros. 100L ≈ 50 cm total. Comece com menos.

✓ Math logic verified against primary sources → See our verification process

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 →