resource library
ArrayTankulator - a free online rainwater tank size calculator
18/02/2025
Looking for a quick, easy-to-use, online tool for rainwater tank calculations?
The Tankulator is a free online tool which calculates what size rainwater tank best suits your needs. Developed by Renew Australia, the tool can help you plan for a new rainwater tank or improve the performance of an existing tank. You can use the tool to compare different scenarios to find the best match for your circumstances.
The website takes you through all the steps, and you can use supporting tools like The Water Conservancy's Water Consumption Calculator to estimate your household's rainwater tank demands.
Renew Australia is an independent not-for-profit organisation promoting sustainable solutions for the home. Check out Renew Australia's water resources for more information on conserving water and using rainwater and greywater at home.
