Keto Dive · Tools · Macro Calculator

Free Tool

Keto macros, the two-meal way.

Anchors, not percentages: protein first by lean mass, carbs under 20g, fat to satiety — with your targets split across the two-meal rhythm.

Units
Sex
Goal
Daily energy — kcal
Protein · the anchor — g · 1.2–1.6 g per kg lean mass
Net carbs · the ceiling under 20 g · Reset-phase target
Fat · to satiety ~— g · fills the energy gap
Fat 70% Protein 26% Net carbs 4%

Meal 1 · break the fast

— g protein

~— g fat · to satisfaction

Build this plate →

Meal 2 · final meal

— g protein

~— g fat · lighter if sleep is near

Build this plate →

This is one part of the system. The book connects the rest · from £1.77 (UK price)

A starting reference, not homework — in the Keto Dive system, tracking is optional and the anchors do the work. A planning tool, not medical advice — and not suitable for under-18s. If you're pregnant, diabetic, on medication, have a history of disordered eating, or are managing a health condition, talk to your clinician before changing how you eat.

How the calculator thinks.

Protein is the anchor. The target is 1.2–1.6 g per kilogram of lean body mass — the tissue your body actually maintains — not total weight. Enter your body fat percentage if you know it; if not, lean mass is estimated from height, weight, and sex. Split across two meals, each lands in the practical 30–50 g range where a meal genuinely satisfies.

Carbs are the ceiling. Under 20 g net per day is the Reset-phase target — low enough to stop the "almost keto" drift that keeps cravings loud. Later phases of the system test your personal threshold upward, but this is where the reset happens.

Fat is the dial. It fills the energy gap between your protein, your carbs, and your daily target — eaten to satiety, not forced to hit a quota. The gram figure is a guide to what fits; hunger gets the final vote day to day. That's why it's shown with a tilde and the percentages come last, not first.

Energy is estimated, not gospel. Daily energy comes from standard equations (Katch-McArdle when body fat is given, Mifflin-St Jeor otherwise) times your activity level — a sound starting point that real-world results should refine. Pair the numbers with your eating window from the Two-Meal Rhythm Planner, and the food itself is in what to eat on keto.

Questions.

Why does the calculator ask about body fat?

Because protein is anchored to lean body mass, not total weight — that's what your body actually maintains. If you know your body fat percentage, even roughly, the numbers sharpen. If you leave it blank, the calculator estimates lean mass from your height, weight, and sex, which is close enough to start.

Why is fat given as a guide rather than a hard target?

Fat is the flexible dial. Protein and carbs are the anchors; fat fills the energy gap to satiety — eaten for satisfaction, not forced to hit a quota. The gram figure shown is what fits your energy target, but a hungrier day can take a little more and a quieter day less. That flexibility is the point.

Why under 20 grams of net carbs?

It's the Reset-phase ceiling — low enough to stop the 'almost keto' drift that keeps cravings loud. It isn't forever: once you're adapted, the later phases of the system test your personal carbohydrate threshold upward. But it's the right place to start.

Why are the numbers split across two meals?

Because the system is built on a two-meal rhythm inside a 16:8 window. Splitting protein across two meals lands each one in the practical 30–50 gram range where a meal actually satisfies. If you don't have your eating window planned yet, the Two-Meal Rhythm Planner does that part.

The calculator gives you the numbers. The book gives you the meals.

Two weeks of two-meal menus, the balanced-plate framework, and the five-phase system that turns targets into a rhythm you keep.

Limited-time launch pricing · Kindle £1.77 · Paperback £5.64 · Hardback £10.48UK store shown · other Amazon stores list local equivalents