The BMI and measurement differences are calculated from the values you enter. The model is an illustrative reference, not a validated reconstruction. Height, weight and circumferences cannot determine your exact appearance, body fat or health.
Your numbers, a new perspective
3D Body Visualizer
Explore height, weight and body measurements with an interactive male or female 3D reference. Rotate the model, compare two sets and see your calculated BMI. No photo or account needed.
Explore an illustrative body model using your measurements. Everything stays in this browser.
Optional measurements
Leave blank to use the reference proportions. Measure chest, waist and hips around the body; inseam runs from the crotch to the floor.
Calculated adult BMI
BMI uses height and weight only. It does not measure body fat, muscle or health.
Save your current measurements to compare another set.
Loading 3D illustration…
Illustration only. Not a scan, exact likeness, body-fat estimate or prediction. People with the same measurements can look different.
A height and weight visualizer with room for your measurements
Start with height and weight, then add chest, waist, hips and inseam for a more detailed illustration. Switch between metric and imperial units without re-entering your values. Compare a current set with a past or reference set to explore the differences.
- Choose a male or female reference model and enter height and weight.
- Add optional tape measurements using the same landmarks for both sets.
- Rotate the illustration or select a front, side or back view. Compare the entered numbers alongside the models.
Same BMI, different bodies
BMI is weight in kilograms divided by height in meters squared. It cannot separate muscle, fat and bone. Two people with the same BMI can have different proportions, posture and fat distribution. The calculation comes from your numbers; the 3D shape is only an illustration, not a scan or a prediction.
Measure consistently before you compare
Use a flexible tape held level and snug without compressing the skin. Measure chest around its fullest point, waist at a consistent documented landmark, hips at the fullest point and inseam along the inside leg. Repeat the same method for both sets; posture, tape tension and landmark changes can alter a reading.
Average waist size for men
Understand population references and measurement methods.
Average bicep size
Keep relaxed arm and flexed biceps measurements separate.
Average thigh size
Compare like-for-like measurements and understand the evidence.
Compare measurement changes
See entered circumferences on a shared scale.
Turn a comparison into a tracking routine
An illustration cannot show how your training actually changed your body. Repeatable progress photos add the visible context that height, weight and a tape measure leave out. Keep camera position, lighting and pose consistent.
FAQ
Common questions
Yes. Choose the reference model that fits the comparison you want to explore. Changing the model changes the illustration; the BMI formula stays the same.
No. BMI uses height and weight and does not distinguish muscle from fat. This tool does not infer a body-fat percentage from the model.
Yes. Enter two sets and compare their illustrative shapes and numerical differences. A reference set can represent an earlier measurement or a scenario; it is not a recommended target.
The visualizer calculates and renders in your browser. No account or photo upload is needed, and your entered measurements are not sent as analytics values.
No. It illustrates entered numbers using a 3D model. It does not transform a photo or predict training results. LeanLens’s future-physique feature is a separate app experience with its own access conditions.
The tool is intended for adults. Children and teens require age-specific assessment, and pregnancy or high muscularity can make adult BMI less informative. The illustration and calculation do not provide a diagnosis.