Round-hole area for leak estimate calculator

The opening area scales with diameter squared; diameter must be converted into the area unit used by the leakage model.

Units

A = \frac{\pi \times d^{2}}{4}

Calculator

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

Given

A = \frac{\pi \times {0.19}^{2}}{4} \approx 0.0284

Symbol	Meaning	Unit
$A$	round-hole area	in²
$d$	hole diameter	in

Symbol	Meaning	Unit
$A$	round-hole area	m²
$d$	hole diameter	m

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