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Ape Index Calculator — result sheet
Calculate the difference and ratio between arm span and height as a simple body-proportion measure.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Ape index = arm span − height; span-to-height ratio = arm span/height.
The calculator reports both an absolute difference and a dimensionless ratio so the unit convention stays visible.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Arm span — cm; minimum 1.0E-6; maximum 500
- Height — cm; minimum 1.0E-6; maximum 300
Worked example
| Input | Value |
|---|---|
| Arm span | 174 |
| Height | 170 |
Ape index = 4 cm; span-to-height ratio ≈ 1.0235.
Assumptions and limits
- Arm span and height use the same length unit.
- Measurements are entered consistently and height is positive.
- Reach, limb proportions, sport performance, age, and clinical interpretation are not inferred.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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