BMI Calculator
Calculate your Body Mass Index in metric or imperial units and see your WHO weight category instantly.
Work out your Body Mass Index (BMI) from your height and weight and see which WHO category it falls into.
How to use it
- 1Choose metric or imperial units.
- 2Enter your height and weight.
- 3Read your BMI and its category instantly.
Your measurements
Enter your height and weight to calculate your BMI.
Not medical advice
Result
Your BMI
24.2
- Category
- Normal weight
BMI is a screening tool, not a diagnosis of body fat or health.
Frequently asked questions
- Is BMI accurate for everyone?
- BMI is a useful screening tool but doesn't account for muscle mass, bone density or body composition, so it may be less accurate for athletes, older adults or pregnant people.
- What is a healthy BMI range?
- For most adults, the WHO considers 18.5–24.9 to be within the normal weight range.
- Does this tool store my data?
- No. All calculations happen in your browser and nothing is saved or sent anywhere.
Something wrong with this tool or its numbers?
Report an issueRecommended next
What people usually reach for after this tool.
BMR Calculator
Estimate your Basal Metabolic Rate with the Mifflin-St Jeor formula and see your daily calorie needs (TDEE).
Daily Calorie Calculator
Calculate your daily calorie needs to lose, maintain or gain weight based on your TDEE and goal.
Protein Intake Calculator
Calculate your recommended daily protein intake in grams based on your weight, activity level and goal.
Related articles

What BMI tells you, and what it definitely does not
BMI is a fast population-level screen. Here is how to read it without over-interpreting it.
5 min read
How to price freelance work without guessing
A repeatable pricing method built on utilisation, target income and value-based adjustments.
7 min read
VAT explained simply for small businesses
What VAT actually is, when you have to register, and how to keep the arithmetic painless.
6 min readPopular tools
The calculators people reach for most.
New tools, every week
One short email when we ship something genuinely useful. No spam, unsubscribe anytime.