Tank side-and-top area calculator

The tank example excludes ground loss and approximates a large cylinder as a flat surface.

Units

A = \pi \times D \times H + \pi \times \left(\frac{D}{2}\right)^{2}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

A = \pi \times 12 \times 19 + \pi \times \left(\frac{12}{2}\right)^{2} \approx 829.4

Symbol	Meaning	Unit
$A$	side and top area excluding the bottom	ft²
$D$	tank diameter	ft
$H$	tank height	ft

Symbol	Meaning	Unit
$A$	side and top area excluding the bottom	m²
$D$	tank diameter	m
$H$	tank height	m

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.