Enter your height, weight and sex. The visualizer draws five figures: you in colour, and grey figures at −15 kg, −7 kg, +7 kg and +15 kg, each with its BMI. It is a simple way to compare weights without photos.
Body Weight Visualizer – compare weights
How much difference does 7 kg make?
About 7 kg is just over a stone. For an average-height woman (162 cm), that changes BMI by about 2.7 points; for an average-height man (176 cm), by about 2.3 points. Moving down one stone can be the difference between overweight and healthy, or between obesity class 1 and overweight.
Losing 7 kg at the NHS-recommended 0.5–1 kg a week takes about 7 to 14 weeks. Plan it with the weight loss timeline calculator.
Comparing body weights fairly
- Compare at the same height – a heavier tall person may have a lower BMI than a lighter short person.
- Remember that muscle makes a body heavier but often slimmer-looking.
- Where fat is stored changes the look: some people gain mainly around the waist, others on hips and thighs.
For a single figure with a slider, use the BMI visualizer. For before-and-after goals, try the weight loss visualizer.
Frequently asked questions
What is a body weight visualizer?
It is a tool that draws illustrations of a body at different weights so you can compare how weight changes might look at your height.
Can I see what I would look like 2 stone lighter?
Yes – the grey figure on the left shows about 15 kg (2⅓ stone) lighter. For an exact target, use the before-and-after visualizer.
Is my data stored?
No. Everything is calculated and drawn in your browser.
Related tools and guides
About this page
How this tool works
Each figure is drawn at your height with widths scaled to its BMI. Figures are illustrations based on BMI only.
Sources
Medical disclaimer: this tool gives an estimate for adults and is not a diagnosis or medical advice. bmicalculatornhs.net is independent and not affiliated with the NHS. Speak to your GP, pharmacist or another qualified health professional about your own health. Full disclaimer.