TankTally

Know what is in your tank—and how much room is left. TankTally is a focused liquid tank volume calculator for regular rectangular, vertical cylindrical and horizontal cylindrical tanks. Choose a tank shape, enter its dimensions, then use either fill percentage or measured liquid depth. Clear result cards show total capacity, current liquid volume and remaining capacity. Results include litres, US gallons and Imperial gallons, with measurements available in metres, centimetres, feet and inches. Horizontal tank depth uses circular-segment geometry for a realistic partial-fill estimate. Why TankTally: - Three common tank shapes with understandable selectors - Fill percentage or liquid-depth input - Total, current and remaining volume - Litres, US gallons and Imperial gallons - Metric and imperial length units - Clear validation and one-tap reset - Light and dark themes - Fully offline, with no ads, accounts, analytics or tracking TankTally assumes regular internal dimensions. Wall thickness, fittings, tank tilt and manufacturing tolerances can affect actual capacity. Irregular tanks require manufacturer capacity or calibration data.