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Keto Macro Arithmetic Worksheet

Enter carbohydrate, protein, and fat amounts from a plan or food log you already have. The worksheet converts those grams to calories and percentages. It does not estimate how much energy you need or generate a protein, fat, or carbohydrate amount.

Arithmetic, not a nutrition prescription. The result cannot assess whether the entered amounts are adequate, safe, or likely to produce ketosis. Use an individualized plan from a qualified clinician or registered dietitian when health conditions, pregnancy, medication, or an eating-disorder history are relevant.

Enter your existing macro amounts

Enter total carbohydrate for the cited food-label arithmetic. Supported worksheet range: 0–1,000 g.
Enter an amount you already have. The worksheet does not calculate protein needs. Supported range: 0–1,000 g.
Enter an amount you already have. The worksheet does not fill remaining calories with fat. Supported range: 0–1,000 g.
This is an optional comparison, not an estimate of energy needs. Supported range: 1–20,000 kcal.

Arithmetic result

No result yet. Enter all three macro amounts, using zero where appropriate, then select “Calculate arithmetic.”

Method and limits

The worksheet multiplies total carbohydrate and protein by 4 kcal per gram and fat by 9 kcal per gram. These are the general factors in U.S. nutrition-label rules. The same rules allow specific food factors and different calorie factors for fiber and sugar alcohols, so the result may not match a package’s rounded calorie declaration.

Source: 21 CFR 101.9(c)(1)(i), nutrition-label calorie calculations.

For label-specific carbohydrate arithmetic, use the net carb calculator. For the clinical and practical questions behind choosing macro amounts, read the guide to calculating macros.

Frequently asked questions

Does this keto macro calculator tell me how much to eat?

No. It uses only the values you enter. It does not use age, sex, height, weight, activity, or a weight goal, and it does not generate calorie, protein, carbohydrate, or fat targets.

Why use total carbohydrate instead of net carbohydrate?

The cited label-style 4/4/9 method uses total carbohydrate. Net carbohydrate is not a mandatory Nutrition Facts value, and fiber and sugar alcohol energy factors vary. Keep the basis consistent when comparing this result with another source.

Can I use a calorie number from another calculator?

You can enter it as the optional energy reference to compare two numbers. This worksheet does not verify that the reference is an appropriate intake amount.