About Finpado
Plan your freshwater aquarium: calculate net water volume, browse sourced fish references, check water parameters, compare saved plans and calculate water changes. Free, no sign-up.
How it works
Finpado runs in your web browser. What you enter is processed on your device. Drafts or settings can be kept in this browser's local storage so they are still there next time; clearing this site's browser data removes them.
Who makes it
Finpado is part of Toolwoven, a small independent collection of free browser tools. Each tool focuses on one practical task and can be used without signing up.
Read the privacy notice for details on storage, cookies and analytics.
Last updated: 19 October 2026