Round tank volume
Estimate the internal volume of an upright cylindrical container.
How it is calculated
Liters = π × (diameter ÷ 2)² × water depth × 1,000. Usable liters = liters × usable percentage.
Assumptions & limits
Assumes a straight-sided cylinder. Dimensions are internal; shape, sediment and inaccessible water reduce usable storage. This is not a load or structural calculation. Defaults are illustrative planning inputs, not recommended minimums or a guarantee of safety.
Planning estimates only. Defaults are illustrative, not personalized recommendations. Do not use these calculations as medical, structural, electrical installation or other safety certification. For informational and educational purposes only. CivArk is not medical, legal, engineering or other professional advice. Verify information with qualified professionals and current local authorities. Estimates and preparedness plans cannot guarantee safety or survival.