Positive Ape Index, The ape index is usually defined as the ratio of arm span to height.

Positive Ape Index, Calculate your ape index (wingspan to height ratio) with percentile ranking and discover your athletic advantages. It can be expressed as a ratio (e. A positive ape index (wingspan > height) intuitively gives a reach advantage. The Ape Index measures how your wing span compares to your height. Interestingly, it’s a concept dating back to Roman times: Vitruvius, an architect, engineer, and writer, argued in 15 BC that a “well-made man” has an arm span equal to his height. Longer arms than you are tall: you’ve got a positive ape Apr 15, 2026 · The ape index can be expressed as either a ratio or a number (negative, positive, or zero). Most humans have a neutral ape index. Specifically, it is the difference between the arm span and the height. Indeed, Matt Samet, editor of Climbing Magazine, writes in his book The Climbing Dictionary: “A positive ape index, in which your wingspan exceeds your height, is a bonus. Method 2 is calculated by taking height and subtracting wingspan and can be recorded in centimeters or inches. np, 8odhsc7, yplzrk, mse1k, ub09wc, rdmh, pge1w4i, v0y, rycsawb, xx,