Bodybuilding Genetics Calculator
Estimate a modelled genetics score for muscular development from frame structure and projected FFMI potential.
Strong structural and potential profile for muscular development.
| COMPONENT | SCORE | WEIGHT |
|---|---|---|
| Structure Leverage | 58 | 30% |
| Potential Muscularity | 80 | 70% |
| Current Execution (informational) | 84.9 | 0% |
Bodybuilding Genetics Interpretation
These ranges interpret a modelled genetics score built from structural leverage and projected muscular potential.
| RANGE | CATEGORY |
|---|---|
| 0-35 | Limited Structural Advantage Modelled frame leverage and projected muscular potential are on the lower side. |
| 35-50 | Average Typical profile. Progress depends heavily on consistency and training quality. |
| 50-65 | Favorable Above-average anthropometric profile for bodybuilding-oriented development. |
| 65-80 | Excellent Strong structural and potential profile for muscular development. |
| 80+ | Elite Profile Rare model output with high projected potential and favorable structure metrics. |
What This Bodybuilding Genetics Calculator Estimates
This calculator gives a practical, modelled genetics score for bodybuilding-oriented muscular development. It combines frame structure and potential muscularity estimates rather than using one single metric.
Scoring Model
The composite model uses three layers:
- Structure score from frame leverage index: wrist and ankle circumferences relative to height.
- Potential score from projected normalized FFMI at selected target body fat.
- Weighted composite: genetics score = 70% potential score + 30% structure score.
Current execution score is informational only. It shows where current normalized FFMI sits versus modelled potential and is not part of the composite weighting.
How To Use This Score
Use this output for expectation-setting and planning. It helps identify whether slower progress is more likely due to training execution or biological leverage limits.
For direct FFMI context, compare with the FFMI Calculator. For frame-adjusted natural ceiling screening, use the Natty or Not Calculator. For ceiling utilization and target-weight planning, use the Muscular Potential Calculator.
If you want an anthropometric bodybuilding model centered on wrist/ankle structure and estimated circumference targets, compare this against the Casey Butt Calculator.
Limitations and Bias Sources
This is a heuristic model, not a direct genetic test and not a medical diagnostic tool. It does not capture all contributors to physique outcomes, including training age, injury history, nutrition adherence, sleep, and drug use.
Body-fat error can distort both current and projected FFMI. For cleaner trend quality, repeat inputs under consistent conditions and cross-check body-fat assumptions with methods like the Body Fat Calculator or photo-based estimator.
References
- Kouri EM, et al. Fat-free mass index in users and nonusers of anabolic-androgenic steroids.PubMed record
- Cintineo HP, et al. Sport differences in fat-free mass index in NCAA athletes.PubMed record
- Lee RC, et al. Anthropometric prediction model for total-body skeletal muscle mass.PubMed record
- Helms ER, et al. Evidence-based recommendations for natural bodybuilding contest preparation.PubMed record
More Muscle Tools →
FFMI Calculator
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Natty or Not Calculator
Compare your frame-adjusted FFMI against common natural muscularity ceilings.
Muscular Potential Calculator
Estimate modelled natural lean-mass potential from frame-adjusted FFMI limits.
Casey Butt Calculator
Estimate frame-based bodybuilding potential from height, wrist, and ankle measures.