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Terms of use
Last updated: 24 September 2026
Using the calculators
TankRatio's calculators and guides are free for personal planning. Results are estimates based on the numbers you enter and on makers' published specs, which can change. Always check your tank maker's specifications, and get professional advice for structural questions such as floor loading or for animal health.
No warranty
The site is provided “as is”, without warranties of any kind. To the extent the law allows, TankRatio isn't liable for losses arising from using it. Nothing here limits rights you have under consumer law that can't be excluded.
Embedding
You may embed our calculators with the embed code provided, keeping the credit link. Don't copy the calculators' code or pages wholesale.
Content and brands
Text, design and code are © TankRatio. Product names and brands belong to their owners; TankRatio is independent and not affiliated with any tank maker.