Macro calculator: turn calories into food targets

A 25% protein, 45% carbohydrate and 30% fat split gives the figures below. This example explains the arithmetic; it is not a claim that everyone needs 2,000 calories or this exact split. Rounding food labels and fiber energy can make a logged day's totals differ slightly.

Use the calorie calculator to estimate maintenance energy first. If you already have an individually agreed target, use that instead. Changing the percentage split cannot correct an unsuitable calorie target.

For strength training, check the protein result against a body-weight-based estimate. A percentage can produce a very different protein amount at 1,600 calories than at 3,000. Carbohydrates and fats can then fit your activity, food preferences and overall dietary pattern.

Start with a protein food such as beans, tofu, eggs, fish or poultry. Add a grain or other starchy food, vegetables or fruit, and a source of fat. A chicken-and-rice bowl and a lentil-and-tofu bowl can both fit a macro plan, while contributing different amounts of fiber.

Plan a workable range across several days. Trying to hit every gram precisely can add effort without making the underlying estimates more accurate. Cooking oil, dressings and the raw-versus-cooked weight of a food often matter more than the final gram on the screen.

A calculator describes a population average. It cannot measure your metabolism or account for every medication, health condition or change in activity. Compare the result with your energy, appetite, training and longer-term trend rather than treating one day's number as a pass or fail.

These tools are for adults. Pregnancy, breastfeeding, childhood, eating-disorder recovery and medical diets need individual guidance. If tracking makes eating more stressful, pause and discuss a different approach with a qualified professional.