Calorie Calculator

Set your details to get a daily calorie target, then log what you eat and watch the day add up against it.

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How it’s built

  • Rules: BMR and TDEE come from data-configured strategies — the sex constant, activity multiplier, and goal adjustment are lookup tables, not branching code.
  • Catalog: foods are a searchable product catalog with a per-100g nutrient profile.
  • Accounting: the day’s log is a quantity ledger — immutable entries whose total is derived, not stored, and compared to your target.