About Aquakind
Aquakind is an independent, free browser toolkit for measuring aquarium volumes and planning amounts.
Aquakind brings four everyday volume questions into one small toolkit: how much water fits, how much substrate covers the base, how much a chosen water change means, and what a change in the waterline represents.
English and Chinese pages share the same calculation model. All tools run on your own device, with no account, payment, external calculation API or uploaded measurements. Results can be printed or downloaded as CSV.
This independent site makes geometry visible. It does not replace aquarium care advice, water testing, product instructions or professional structural assessment. Read the method page before using a result.
Measure your tank