Know your numbers. Build meals you can keep.
Free adult BMI, calorie, and metabolism tools — plus practical notes on food, weight management, and everyday mobility. No account. Nothing you type is stored.
Core tools
Four calculators, no account
Each tool runs in your browser. Use the result as a starting point, then read the guide underneath it.
BMI calculator
Adult Body Mass Index with WHO-style categories and a healthy-weight range for your height.
Open calculator →Calorie calculator
Daily energy need from age, height, weight, sex, and activity (Mifflin–St Jeor).
Open calculator →Body fat estimator
A BMI-based screening percentage. Not a DEXA or clinic scan.
Open calculator →BMR calculator
Calories your body uses at rest, before you add daily activity.
Open calculator →From the journal
Start with these guides
Short, practical reading that pairs with the calculators — food, BMI context, and everyday plates.
What BMI is — and how it is calculated
The formula, the adult categories, and what the number is for.
Anti-inflammatory foods to cook with
Leaves, oil, fish, berries — a grocery list, not a miracle protocol.
A simple meal framework
Build plates you can repeat, then check calories if you need a range.
More than a number
Food, movement, and the long view
BMI is a useful first check. Lasting health is usually built from meals you can cook on a Tuesday, strength you can keep, and joints you look after as you get older.
The journal covers eating patterns, calorie-aware plates, and gentle work for common issues such as knee and lower-back stiffness — always as education, not a treatment plan.
Short answers
Common questions
Is this medical advice?
No. Calculators and articles are educational. Read the medical disclaimer and speak with a licensed clinician about your own health.
Do you store the numbers I type?
Height, weight, age, and similar fields are calculated in your browser. They are not sent to our server. Analytics and ads are described in the privacy policy.
Is BMI the only number that matters?
No. Pair it with what BMI cannot see, the calorie calculator, and the food guides.