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Calculate calories and macros with body-fat and training-aware logic

A calorie calculator that estimates training-day, rest-day, and weekly average targets from your body, activity, and goal.

Run the calculation

Enter your stats, training level, and goal. You’ll get calories, macros, and a direct handoff into Calibr8 if you want weekly adjustments instead of one-off math.

Where Calibr8 takes over

Updates calories and macros from real intake and scale trend.

Step 1 of 6Basics

Health Notice

This calculator provides general estimates for educational purposes. It is not medical advice. Consult a healthcare professional before making significant dietary changes.

The Basics

We need a few details to calculate your energy needs accurately.

Biological Sex

Use this as the starting point

The value here is a grounded estimate, not fake precision. Calibr8 gets stronger once it can see what actually happened after the calculation.

Why Calibr8 gets stronger

  • Updates calories and macros from real intake and scale trend.
  • Adjusts through weekly check-ins instead of leaving you with one static number.
  • Adds plateau handling and coaching direction when the estimate stops matching reality.

What this used

  • Cunningham-based energy math with activity level and training load.
  • Body-fat category guidance to set cut or bulk ranges.
  • Calorie and macro targets for training days, rest days, and weekly average intake.

What this cannot know yet

  • How your body weight will actually respond over the next 7 to 14 days.
  • Whether your logged intake matches the plan in real life.
  • How far off the BMI-based body-fat estimate is if you are a trained lifter.

Educational use only. For medical conditions, disordered eating, or pregnancy, talk to a qualified clinician.