Tools
Penis volume calculator
Turn your erect length and girth into a single volume in millilitres, and see how it compares to the average. Free, instant, private.
Suas medidas
Modelled as a cylinder, V = girth² × length ÷ 4π. An estimate for comparison, not a clinical figure.
Erect volume
172ml
1.21× average
The average erect volume is about 142 ml (Veale 2015).
Why volume, not just length
Length is one number; girth is another; volume rolls both into one. Because volume scales with the square of girth, an extra centimetre of circumference moves the total far more than an extra centimetre of length. That's the math behind why girth tends to matter more — and it's why two men with the same length can occupy very different space. See the full picture on the percentile calculator and what women prefer.