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Free tools · evidence-based

find your numbers.
then build a plan around them.

Calorie targets, protein needs, healthy weight ranges. Free, evidence-based, no email required. Then turn the numbers into a real weekly plan.

Your numbers

Work out the targets that matter most for weight loss and body composition.

Calorie deficit calculator

Find your maintenance calories and the daily target to lose weight sustainably.

Work out my target →

Protein calculator

How many grams of protein you need each day to lose fat while keeping muscle.

Work it out →

Ideal weight calculator

Find your healthy weight range for your height — the better answer than a single number.

Find my range →

BMI calculator

Standard BMI calculation with WHO categories — plus the caveats most calculators skip.

Check my BMI →

Your body and risk signals

Tools for understanding body composition and flagging health risk patterns.

Metabolic age calculator

Translate your resting metabolism into an age comparison — body-composition aware, unlike most online calculators.

Check my metabolism →

Insulin resistance risk checker

A 13-question symptom and lifestyle questionnaire that flags your insulin resistance risk level.

Check my risk →
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