Move, eat & sleep · about 3 min
Calorie & Macro Calculator
A transparent estimate, not a prescription. Uses the Mifflin-St Jeor equation (or Katch-McArdle if you know your body fat), shows its working, sets sensible protein and fibre targets and charts your weight trend.
- Free, no sign-up
- Saved only on this device
- Export anytime
What you get
- Mifflin-St Jeor and Katch-McArdle, with the maths shown
- Maintenance, gentle loss or gentle gain targets with safe floors
- Protein, carb, fat, fibre and water targets
- Weight log with a smoothed trend line
Your entries are saved in this browser only. They are never sent to us. Clear your browser data or use Your data on the dashboard to export, import or erase them.
General information, not medical advice
This tool gives general estimates and ideas for healthy adults. It is not medical advice and does not diagnose, treat or prescribe. Talk to a doctor before starting a new exercise or eating plan, especially if you have a health condition, are pregnant, or have a history of disordered eating. If something hurts or feels wrong, stop.