Competition Weight Calculator: Ideal Range by Sport and Height
Find your ideal competition weight by sport, height, and sex. Based on sport-specific BMI ranges used by elite athletes — running, cycling, swimming, powerlifting, CrossFit, and more.
See step-by-step calculation
When to use this calculator
- A competitive runner at 170 cm wants to know whether dropping to 58 kg will actually improve their race performance or cross into unsafe territory.
- A masters-division road cyclist wants to calculate the weight that maximizes watts-per-kilogram output for climbing stages.
- A natural bodybuilder planning a competition cut needs to know the minimum safe stage weight for their height.
- A high school wrestler wants to verify whether reaching a specific weight class is physiologically safe given their current height.
- A female collegiate rower wants to confirm her target weight sits within the ideal power-to-weight range for her height.
- A sports medicine physician counseling a gymnast on whether a coach-prescribed target weight is within safe athletic norms.
Sport-Specific BMI Bands for Competitive Weight (by Sex)
| Sport | Male BMI Range | Female BMI Range |
|---|---|---|
| Running | 18.5 – 21.0 | 17.5 – 20.0 |
| Road Cycling | 19.0 – 22.0 | 18.0 – 21.0 |
| Swimming | 21.0 – 24.0 | 20.0 – 23.0 |
| Soccer | 22.0 – 25.0 | 20.0 – 23.0 |
| Basketball | 22.0 – 26.0 | 20.0 – 24.0 |
| Boxing / MMA | 21.0 – 26.0 | 19.0 – 24.0 |
| Powerlifting | 25.0 – 35.0 | 23.0 – 30.0 |
| CrossFit | 24.0 – 28.0 | 22.0 – 26.0 |
| Tennis / Padel | 21.0 – 25.0 | 19.5 – 23.0 |
Fuente: ACSM's Guidelines for Exercise Testing and Prescription, 11th Ed. — bands derived from elite athlete body composition data. Apply formula: Weight (kg) = BMI × height_m².
How it works
How the Calculator Works
The formula applies sport-specific BMI bands derived from elite athlete body composition data. BMI (Body Mass Index = weight ÷ height²) is a limited tool for the general population but becomes meaningful when calibrated to a specific sport's competitive physique.
Formula:
Weight_min (kg) = BMI_min × height_m²
Weight_max (kg) = BMI_max × height_m²Each sport has sex-specific BMI bands:
| Sport | Male BMI Range | Female BMI Range |
|---|---|---|
| Running | 18.5 – 21.0 | 17.5 – 20.0 |
| Road Cycling | 19.0 – 22.0 | 18.0 – 21.0 |
| Swimming | 21.0 – 24.0 | 20.0 – 23.0 |
| Soccer | 22.0 – 25.0 | 20.0 – 23.0 |
| Basketball | 22.0 – 26.0 | 20.0 – 24.0 |
| Boxing / MMA | 21.0 – 26.0 | 19.0 – 24.0 |
| Powerlifting | 25.0 – 35.0 | 23.0 – 30.0 |
| CrossFit | 24.0 – 28.0 | 22.0 – 26.0 |
| Tennis / Padel | 21.0 – 25.0 | 19.5 – 23.0 |
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Reference Table — Ideal Weight by Sport and Height (Male)
| Height | Running | Road Cycling | Swimming | CrossFit | Powerlifting |
|---|---|---|---|---|---|
| 160 cm | 47–54 kg | 49–56 kg | 54–61 kg | 61–72 kg | 64–90 kg |
| 165 cm | 50–57 kg | 52–60 kg | 57–65 kg | 65–76 kg | 68–95 kg |
| 170 cm | 53–61 kg | 55–64 kg | 61–69 kg | 69–81 kg | 72–101 kg |
| 175 cm | 57–64 kg | 58–67 kg | 64–73 kg | 73–86 kg | 77–107 kg |
| 180 cm | 60–68 kg | 62–71 kg | 68–78 kg | 78–91 kg | 81–113 kg |
| 185 cm | 63–72 kg | 65–75 kg | 72–82 kg | 82–96 kg | 86–120 kg |
| 190 cm | 67–76 kg | 69–79 kg | 76–87 kg | 87–101 kg | 90–126 kg |
Reference Table — Ideal Weight by Sport and Height (Female)
| Height | Running | Road Cycling | Swimming | CrossFit | Powerlifting |
|---|---|---|---|---|---|
| 155 cm | 42–48 kg | 43–50 kg | 48–55 kg | 53–62 kg | 55–72 kg |
| 160 cm | 45–51 kg | 46–54 kg | 51–59 kg | 56–66 kg | 59–77 kg |
| 165 cm | 48–54 kg | 49–57 kg | 54–63 kg | 60–71 kg | 63–82 kg |
| 170 cm | 51–58 kg | 52–61 kg | 58–66 kg | 63–75 kg | 66–87 kg |
| 175 cm | 54–61 kg | 55–64 kg | 61–70 kg | 67–80 kg | 70–92 kg |
| 180 cm | 57–65 kg | 58–68 kg | 65–75 kg | 71–84 kg | 75–97 kg |
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Worked Example: Male Road Cyclist at 178 cm
1. Height in meters: 1.78 m
2. BMI band for road cycling (male): 19.0 – 22.0
3. Weight min = 19.0 × 1.78² = 19.0 × 3.1684 = 60.2 kg
4. Weight max = 22.0 × 1.78² = 22.0 × 3.1684 = 69.7 kg
5. Result: competitive weight range 60–70 kg (BMI 19–22)
For context: Tour de France GC contenders at 178 cm typically race at 62–66 kg.
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Common Mistakes
1. Using a general BMI chart instead of sport-specific targets. A BMI of 25–26 is "overweight" on standard charts but normal for a CrossFit athlete or soccer player with significant muscle mass.
2. Ignoring the minimum healthy fat threshold. The ACSM defines essential fat as ~3% for males and ~12% for females. Cutting below these levels causes hormonal disruption and bone density loss even in elite athletes.
3. Applying male body fat standards to female athletes. Women carry ~6–8 percentage points more essential fat. A female runner at 12% body fat is performing at elite level; the same 12% in a male would be moderate.
4. Confusing competition weight with walk-around weight. Many weight-class athletes reach competition weight through short-term water cutting. This calculator outputs sustainable athletic weight, not dehydration-cut weight.
5. Ignoring age effects. Athletes over 40 typically carry 2–4% less lean mass than younger counterparts at the same height. Target the upper portion of the sport range to preserve muscle and reduce injury risk.
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Related Calculators
Male Road Cyclist, 178 cm
Frequently asked questions
What is the ideal competition weight for a male runner at 175 cm?
What is the ideal weight for road cycling by height?
How does ideal weight differ between sports at the same height?
Is this calculator accurate for weight-class sports like boxing or wrestling?
What is the minimum safe body fat percentage for athletes?
Should female athletes use different targets than males?
Does ideal competition weight change with age?
How is this different from a standard BMI calculator?
What sport should I select if mine is not listed?
Sources & references
Methodology & trust
Calculadora de deportes revisada por el equipo editorial de Hacé Cuentas, contrastada con ACSM's Guidelines for Exercise Testing and Prescription, 11th Ed., según nuestra política editorial y metodología.
Última revisión: June 20, 2026. Los parámetros se verifican periódicamente con las fuentes citadas.
Calculations run 100% in your browser. We do not store or transmit your data.
Indicative results. For critical decisions, consult a professional.
Rodríguez, M. (2026). Competition Weight Calculator: Ideal Range by Sport and Height. Hacé Cuentas. https://hacecuentas.com/competition-weight-calculator
Contenido bajo licencia CC-BY 4.0 — reutilizable citando la fuente con enlace a Hacé Cuentas.