Use this calculator in summer to check water levels in your dams and tanks and to estimate how long water for stock will last.

Features

• No login required, mobile friendly
• Calculates automatically
• You can select different dam shapes plus name dams and tanks
• Accounts for batter slope and average summer evaporation rates
• Delivers estimate of useable water – you can allow for sludge
• Help information available on every page
• Export pdf summary of your current available water – print or email