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Your macro calculator

Get your starting numbers in about a minute. Then check in every 2 weeks and the calculator adjusts to how your body is actually responding.

Your stats

Be honest with weight and activity. Better inputs, better numbers.

Sex
Units
Switching converts anything you've already entered.
years
%
Only add body fat if it was measured (DEXA, InBody or calipers). It makes the estimate more accurate, especially for lean, muscular or heavier people. Leave it blank if you're not sure.
Your goal
Losing fat? Pick Cut. Adding muscle? Build. Holding your weight? Maintain. Coming back up after a diet or a show? Reverse.
Height
ft
in
lb
lb
Goal weight (Cut only): where you want to be in the next 3–6 months, not your dream weight. Your protein and fat are based on it, and it sets your goal date.
Standard is recommended. Slower keeps more muscle and is easier to stick to. If you're already lean, your pace is capped for you.

Your activity

Sitting: desk, office, driving. On your feet: retail, teaching, nursing. Physical: construction, landscaping, warehouse.
Your daily average. Your phone's health app shows it.
Workouts per week
Training 7 days? Pick 6.

Your daily numbers

?

Fill in your stats and tap Calculate my macros.

Am I on track?

Your scale shows what your body is really doing. Every 2 weeks, your calories adjust to match it.

  1. Weigh in each morning and tap Save.
  2. Hit your numbers in MyFitnessPal.
  3. When it says Check-in ready, tap Update my numbers and copy the new goals into MyFitnessPal.

Your first check-in is 4 weeks after you start. After that, it's every 2 weeks. This page tells you when it's time.

lb

cal
Filled in from your targets. If you ate differently, enter your daily average from MyFitnessPal.
A day counts if protein was within 10 g and calories within 100.

    A check-in needs 8 weigh-ins covering 10 days. Missed a day? No problem.
    Don't weigh in every day?
    Your weigh-ins
    Two averages: enter this week's average weight and one from 2–4 weeks ago instead.

    Switching phones?

    Everything you enter is saved on this device, in this browser. Before you switch phones or clear your browser, copy your backup code and paste it here on the new one. Lost it? Enter the maintenance number from your last check-in instead.

    These are starting targets for healthy adults, based on the Mifflin-St Jeor formula (or Katch-McArdle when you enter body fat) and your activity. They aren't medical advice. If you have a medical condition, are pregnant or nursing, or have a history of disordered eating, check with your doctor first. Not for anyone under 18. A fully personalized nutrition plan is part of 1-on-1 coaching. Calculator v3.7 · October 2026.