What is calculated
Protein from body weight, selected carbohydrate grams, and the fat remainder.
Paleo Macro Calculator
Fat grams remaining in the selected Paleo-style scenario
Enter your values, then calculate to see a verified result.
Reference range
How this result is calculated
A clear calculation path based on your inputs.
Inputs usedReview the information used for this result.
Full calculation and sourcesReview the equation, normalized inputs, assumptions, and version.
Versioned calculationFormula v1.0.0
Method
Apply 4 kcal/g to protein and carbohydrate, then convert remaining calories to fat at 9 kcal/g.
Important boundary
Paleo definitions vary and frequently exclude entire food groups; macro arithmetic cannot test nutrient adequacy.
Set caloriesStart from a separately selected daily energy target.
Keep the upstream estimate visible.Apply explicit macrosCalculate protein by weight and reserve entered carbohydrate.
No fixed pattern ratio is imposed.Calculate the remainderConvert remaining calories to fat.
Non-positive remainders are rejected.Interpretation
g/day is the remaining fat for the entered assumptions.
The pattern still depends on food choices and nutrient coverage.
No universal ratio or health outcome is claimed.
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Method and test recordFormula v1.0.0
- Recorded scope
- health-nutrition-goals
- Publisher
- CalculatorGeek
- Recorded review date
- 2026-10-04
- Next source review
- 2027-10-04
- Definition fixtures
- 3 configured scenarios
- Published examples
- 3 shown below
Recorded method
Verify unit parity, 4/4/9 allocation, calorie conservation, remainder validation, and boundary content.
These records describe the published model and reference tests. A test-case count is not a certification of every possible input or an independent specialist review. Editorial policy
Known limitations
- There is no universally accepted Paleo macro ratio.
- Excluding grains, legumes, or dairy can affect fiber and micronutrient intake.
- Evidence remains heterogeneous and does not establish superiority for every outcome.
- The tool does not assess food quality or dietary adequacy.
Method sources
- Scoping review of Paleolithic dietary-pattern definitions
- Paleolithic diet and glucose outcomes: systematic review of randomized trials
- National Academies: Dietary Reference Intakes for macronutrients
Latest model update
2026-10-04 - Initial shared-system implementation with distinct workflow, evidence boundaries, fixtures, and authored support content.
Reference inputs and expected results
Up to 12 examples from the configured definition fixtures are shown. Expected values use the stated output units; invalid inputs are intended to be rejected.
| Case | Inputs | Expected result |
|---|---|---|
| reference allocation | Daily calorie target: 2200 kcal; Body weight: 80 kg; Selected protein factor: 1.6 g/kg; Selected carbohydrate grams: 200 g | Selected protein: 128 g/day; Fat from calorie remainder: 98.6666667 g/day; Resulting protein share: 23.2727273 %; Resulting carbohydrate share: 36.3636364 %; Resulting fat share: 40.3636364 % (allowed numeric tolerance: 0.0001) |
| imperial parity | Daily calorie target: 2200 kcal; Body weight: 176.36981 lb; Selected protein factor: 1.6 g/kg; Selected carbohydrate grams: 200 g | Selected protein: 128 g/day; Fat from calorie remainder: 98.6666667 g/day (allowed numeric tolerance: 0.01) |
| invalid remainder | Daily calorie target: 800 kcal; Body weight: 100 kg; Selected protein factor: 2.5 g/kg; Selected carbohydrate grams: 100 g | Reject invalid input: daily_calories |
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On this page
What the Paleo Macro Calculator answers
Build a whole-food Paleo-style macro scenario without pretending that one 30/30/40 ratio defines every Paleo diet.
The calculation uses user-controlled inputs and reports the full allocation without treating the diet label as proof of quality or adequacy.
Use the Health calculators hub to move between nutrition and body-composition workflows.
How to use the Paleo Macro Calculator
- Enter daily calories and body weight.
- Choose a protein factor.
- Enter carbohydrate grams from the actual food plan.
- Review the resulting fat remainder and evidence limits.
For the closest upstream calculation, open the Macro Calculator. Compare a general percentage allocation.
Formula, variables and calculation order
protein g = weight x selected g/kg.
fat g = (calories - protein g x 4 - carbohydrate g x 4) / 9.
To compare the method with a neighboring workflow, use the Protein Calculator. Choose protein with separate activity context.
Worked example and boundary check
Worked scenario
At 2,200 kcal, 80 kg, 1.6 g/kg protein, and 200 g carbohydrate, protein is 128 g and the remaining fat is 98.7 g.
Boundary check
An allocation with no positive calorie remainder is rejected instead of producing a negative macro.
How to interpret the result
The result is one auditable macro scenario. The diet-pattern label does not validate food quality, adherence, or individual safety.
- There is no universally accepted Paleo macro ratio.
- Excluding grains, legumes, or dairy can affect fiber and micronutrient intake.
- Evidence remains heterogeneous and does not establish superiority for every outcome.
- The tool does not assess food quality or dietary adequacy.
For another useful cross-check, continue with the Fiber Intake Calculator. Keep fiber planning visible.
Inputs, outputs and result meaning
Uses protein g/kg and entered carbohydrate with fat as the remainder while separating macro arithmetic from dietary adequacy.
Inputs
- Daily calorie target
- Enter the daily energy value used by this scenario.
- Body weight
- Use a current measured body weight.
- Selected protein factor
- Choose a factor from the broader plan; Paleo does not define one universal protein target.
- Selected carbohydrate grams
- Enter carbohydrate from the foods included in your actual pattern.
Outputs
- Fat from calorie remainder
- Primary result in g/day.
- Selected protein
- Supporting result in g/day.
- Selected carbohydrate
- Supporting result in g/day.
- Resulting protein share
- Supporting result in %.
- Resulting carbohydrate share
- Supporting result in %.
- Resulting fat share
- Supporting result in %.
Frequently asked questions
Is 30/30/40 the official Paleo ratio?
No. Published and popular Paleo definitions vary, so this calculator does not impose one ratio.
Why enter carbohydrate grams?
Actual Paleo-style food choices can produce very different carbohydrate intakes.
Does Paleo require high protein?
No single g/kg factor defines the pattern; the input stays editable.
Does the tool assess calcium or fiber?
No. Excluding food groups can change nutrient intake and requires a separate food-level review.
Is Paleo proven superior?
Evidence is limited and heterogeneous; the calculator makes no superiority claim.
Primary sources and evidence limits
- Scoping review of Paleolithic dietary-pattern definitions
- Paleolithic diet and glucose outcomes: systematic review of randomized trials
- National Academies: Dietary Reference Intakes for macronutrients
Sources were checked 2026-10-04. They support the calculation method or its evidence boundary; they do not turn a planning scenario into medical nutrition advice.