Calculator

1. enter the inside diameter of the cistern in feet and or inches
2. enter the inside height of the cistern in feet and or inches

Results

1. the volume of the cistern in cubic feet
2. the capacity of the cistern in US gallons
3. the capacity of the cistern in Imperial gallons
4. the capacity of the cistern in Litres

Cisterns, Tanks and Rainwater Harvesting

• Capacity of a Round Cistern - Imperial measurements
• Capacity of a Round Cistern - Metric measurements
• Capacity of a Square or Rectangular Shaped Cistern - Imperial measurements
• Capacity of a Square or Rectangular Shaped Cistern - Metric measurements
• Collecting Rain Water from a Catchment Area/ Inch per Square Foot
• Rainfall per Unit Area, Inch per Acre
• Rainfall per Unit Area, Millimetres per Acre
• Rainfall per Unit Area, Millimetres per Hectare

Water Flow Rate Calculators

• Garden Hose Flow Calculator
• Measuring the Water Flow from a Tap in Gallons per Minute
• Measuring the Water Flow from a Tap in Litres per Minute
• Water Application Rate for an Area

Water Pressure and Friction Loss

• Pressure Loss in Pipes from Friction
• Valves and Fittings 1/2" to 24" diameter, equivalent length calculation

Conversions

• Decimal Foot to Decimal Inch - Decimal Inch to Decimal Foot
• Decimal Inch and Foot to Metres and Millimetres