BMI Calculator

Your body mass index, category & healthy range

Healthy
Your Body Mass Index
0.0
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BMI Calculator — guide & how to use

What it does

The BMI Calculator turns your height and weight into your body mass index, your weight category, and the healthy weight range for your height. Works in metric or imperial — calculated privately in your browser, free.

How to use it

  1. Pick imperial (ft/in, lb) or metric (cm, kg).
  2. Enter your height and weight.
  3. Read your BMI and category at the top, with your healthy weight range below.

How to embed this tool on your website

No account, no coding. Copy the embed code and paste it where you want it to appear:

<iframe src="https://snaptoolsuite.com/bmi-calculator/?embed=1"
  style="width:100%;max-width:560px;height:760px;border:0;"
  title="BMI Calculator" loading="lazy"></iframe>
<p>Free <a href="https://snaptoolsuite.com/bmi-calculator/">BMI Calculator</a> by Snap Tool Suite</p>
2 Paste it on your page
3 It just works

See it live: view a real embed example →

Frequently asked questions

How is BMI calculated?

Weight (kg) ÷ height (m)². Imperial: 703 × lb ÷ inches². Under 18.5 underweight, 18.5–24.9 healthy, 25–29.9 overweight, 30+ obese.

What is a healthy BMI?

Generally 18.5–24.9 for adults. BMI is a screening tool and doesn't account for muscle mass.

Is it really free?

Yes. 100% free, everything runs in your browser.

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🔒 Everything is calculated in your browser. We don't store or sell your data. Not medical advice.