Overweight Calculator (BMI-Based)
Check BMI category and estimate how far current weight sits above the upper healthy-BMI boundary.
Above healthy BMI range. Additional risk depends on waist size and other factors.
Adult BMI Categories
This overweight calculator uses standard adult BMI ranges from CDC for screening context.
| RANGE | CATEGORY |
|---|---|
| 0-18.5 | Underweight Below standard BMI range for adults. Clinical context matters for interpretation. |
| 18.5-25 | Healthy Range Standard healthy BMI range for adults (18.5-24.9). |
| 25-30 | Overweight Above healthy BMI range. Additional risk depends on waist size and other factors. |
| 30-35 | Obesity Class I Higher BMI category with increased cardiometabolic risk in most populations. |
| 35-40 | Obesity Class II Substantially elevated BMI category. Clinical management is often recommended. |
| 40+ | Obesity Class III Highest standard BMI category. Medical follow-up is generally advised. |
What This Overweight Calculator Does
This tool uses your height and weight to compute BMI and map it to standard adult BMI categories. It also calculates how much weight sits above the BMI 24.9 cutoff at your current height.
How Overweight Is Calculated Here
This page is still BMI-based, but it frames results around a specific question: how much weight is above the healthy BMI ceiling at your height?
BMI = weight (kg) / height (m)^2
Upper healthy weight = 24.9 x height (m)^2
Weight above healthy = max(0, current weight - upper healthy weight)
That makes this tool useful when you want an actionable “amount above range” value rather than only a category label.
Why This Page Exists Alongside BMI Calculator
The main BMI screening page is best for broad screening and category checks. This page is tuned for planning conversations like “How far above the upper healthy range am I right now?”
If you are setting targets, pair this output with the healthy target-weight planner and timeline-to-target projection.
For calorie planning behind that timeline, use the TDEE Calculator and the Calorie Deficit Calculator.
Best Use Cases for This Tool
- Translate BMI screening into a clear “kg above healthy range” number.
- Set an initial target before running a weight-loss timeline projection.
- Track progress toward the upper healthy boundary over time.
If you only need category-level screening, the BMI calculator is usually the better starting point.
Important Interpretation Notes
BMI is a screening tool, not a diagnosis. It does not directly measure fat mass, lean mass, or fat distribution. Two people with the same BMI can have very different body composition.
For better context, combine BMI with waist-based tools and composition-focused tools such as the body roundness (waist-height) check, tape-based body fat estimate, waist-to-hip ratio risk check, waist-to-height ratio screen, and lean-mass estimate.
Related Tools
For direct BMI category screening, use the adult BMI calculator. For practical goal setting, pair this with the healthy-weight range planner.
References
- CDC adult BMI categories:CDC BMI Categories
- CDC BMI as a screening measure:About Adult BMI
More Tools →
BMI Calculator
Calculate BMI and view adult category ranges by height and weight.
Ideal Weight Calculator
Compare healthy BMI range and Devine ideal body weight.
TDEE Calculator
Estimate total daily energy expenditure from BMR equation and activity level.
Ponderal Index Calculator
Calculate ponderal index and compare with BMI-equivalent ranges.