Aquarium Volume Calculator
Aquarium Volume Calculator
Instantly estimate your aquarium's water volume — US gallons and liters — whatever its shape. Essential for dosing products correctly and choosing the right filtration and heater.
1 · Tank shape
2 · Inside dimensions
3 · Real-world adjustments (optional)
0
US gallons of water (net volume)
Gross volume: 0 US gal
0US Gallons
0Liters
0 lbWater weight (1 US gal ≈ 8.34 lb)
0 WRecommended heater (≈3–5 W/gal)
0 GPHFilter flow rate (4–6×/h)
0 galWeekly water change (5%)
Tip: always measure the inside dimensions of the tank (excluding glass thickness) and up to the actual water level. Net volume — which accounts for decor and substrate — is the reference for dosing conditioners, fertilizers and treatments.
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