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Keto Calculator

Compute your keto macros (fat, protein, net carbs) from BMR/TDEE and your keto diet type.

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Open Keto Calculator and you get an answer straight away, with no account to create. It covers fat, protein, net carbs — adjust any of them and the result follows immediately.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is Keto Calculator?

Compute your keto macros (fat, protein, net carbs) from BMR/TDEE and your keto diet type.

What does it take into account?

It factors in fat, protein, net carbs. Change any of them and the output follows immediately.

When would I actually use this?

Getting a reference point before a check-up, setting a realistic target, and understanding why two people of the same weight can be in very different shape — and, the same act from the other side, putting a day's caffeine, salt, sugar or alcohol beside the ceiling a health body publishes for it.

What is the most common mistake?

Reading BMI as a measure of health. It cannot tell muscle from fat, which is why athletes routinely score as overweight and why it says little about an individual.

Is there a tool for the next step?

Am I Underweight? Calculator is the closest one after this: Find out if you're underweight from your BMI, with your healthy weight range and kg to reach it.

What else is worth having open alongside it?

Biological Age Calculator and Body Frame Size Calculator — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

The formulas are the published ones (Quetelet for BMI, Mifflin-St Jeor or Harris-Benedict for energy expenditure) and the tool names which it used. None of this is a diagnosis or a substitute for a clinician.

Further reading

All guides →
How-toHow to Calculate Keto Macros (Without Starting From the Percentages)Set carbs as a fixed gram figure, protein by body weight, and let fat fill what is left. The famous 75 percent fat is an output of that calculation, not an input — and it drops on its own in a deficit.Comparison16/8, 5:2 or Alternate Day: The Fasting Protocols ComparedFive protocols side by side, what each demands, and the uncomfortable finding from the controlled trials: matched for calories, fasting loses about the same weight as simply eating less.GuideWhat a Meal Plan Generator Can and Cannot KnowA generator solves a constrained arithmetic problem — hit an energy target, hit the macro splits, stay inside a food list — and it does that well. Here is the arithmetic that makes a plan work, and the honest list of what no generator can see.ExplainerHow Much Carbohydrate Do You Actually Need?There is a small hard answer — the brain's glucose demand, published as 130 g a day — and a very large soft one. Above the minimum, carbohydrate need scales with training volume in grams per kilogram, not with a percentage.ExplainerNet Carbs: What the Subtraction AssumesNet carbs is total carbohydrate minus fibre minus sugar alcohols. Every term in that line is a modelling choice, the first one is defined differently on each side of the Atlantic, and no regulator anywhere defines the result.ComparisonBiological Age vs Chronological Age: What Each One Actually MeasuresChronological age is exact. Biological age is not one thing but three — epigenetic clocks, blood-marker scores and lifestyle quizzes — and only the first two have published validation. Here is how to tell which one you are looking at.