Free Tools

Nutrition calculators, minus the fluff

Simple, evidence-based tools that give you a number you can actually use — no sign-up, no email, no upsell. Then the app makes hitting that number effortless.

Calorie Deficit Calculator

How many calories to lose weight

Get your maintenance calories (TDEE) via the Mifflin-St Jeor equation, plus a daily target for the pace you choose.

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Protein Calculator

How much protein per day

A daily protein target in grams for your weight and goal — general health, fat loss, or building muscle — with per-meal guidance.

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The number is the easy part.

Rekkon makes hitting it effortless — just say what you ate, and it keeps the running tally. Seven days free.

Try Rekkon free