Weight Tools
Adjusted Body Weight Calculator
Calculate IBW, AdjBW, and percent-of-IBW for dosing context.
BMI Calculator
Calculate BMI and view adult category ranges by height and weight.
Broca Index Calculator
Compare current weight against classic Broca height-based reference.
Ideal Weight Calculator
Compare healthy BMI range and Devine ideal body weight.
Overweight Calculator
Check BMI category and estimate weight above the healthy range.
Ponderal Index Calculator
Calculate ponderal index and compare with BMI-equivalent ranges.
Weight Loss Calculator
Estimate timeline to target weight with adaptive energy-balance math.
Weight Loss Percentage Calculator
Calculate percentage change from starting to current weight.
How To Use Weight Tools Effectively
This category currently includes 8 tools. Choose one baseline tool first, then add one or two supporting tools for cross-checking.
Body weight tools help translate scale numbers into practical context such as BMI category, ideal-range heuristics, and change tracking. This category is useful for planning and monitoring.
Weight alone is incomplete. Pair these outputs with body composition or waist-based metrics to improve decision quality and reduce false conclusions from short-term fluctuations.
What This Category Is Best For
- Quick status checks: Use BMI and Overweight tools for basic category context.
- Goal setting: Use Ideal Weight and Broca/Ponderal for target-range planning.
- Progress tracking: Use Weight Loss and Weight Loss Percentage for trend-based review.
Input Quality Checklist
- Weigh under consistent conditions (time, clothing, hydration).
- Track weekly averages rather than single-day readings.
- Use the same unit and rounding conventions over time.
Interpretation Notes
- Expect short-term noise; trend is what matters.
- Category cutoffs are screening tools, not diagnoses.
- Combine weight signals with waist or composition signals.
Common Mistakes To Avoid
- Treating daily weight movement as fat gain/loss certainty.
- Using target formulas as absolute requirements.
- Ignoring body composition changes during training cycles.
Recommended Starting Tool: BMI Calculator
Start with BMI for quick context, then layer additional weight and composition tools.