AI Macro Calculator

    The AI macro calculator built for fitness coaches.

    Enter your client's stats and let Max calculate their exact macro targets — then explain the numbers and build a complete meal plan in minutes.

    Calculating for:

    Client Details

    5
    3-6 meals

    "It used to take me 90 minutes or longer to create a meal plan for a client. Now I can do it in minutes. MacroFuel has completely changed how I run my business."

    SR
    Sam Rentfro
    Personal Trainer · Owner, Chevelle Fitness

    What is an AI Macro Calculator?

    An AI macro calculator goes further than a standard TDEE tool. Instead of spitting out raw protein, carb, and fat numbers and leaving you to interpret them, MacroFuel's AI macro calculator uses Max — our AI coaching assistant — to explain why those numbers fit your client's goal, flag what to watch for, and give you specific coaching tips you can pass on the same day. From there, the same AI can build a complete, macro-perfect meal plan around the targets in under two minutes — so you go from calculation to coaching deliverable in one workflow, not three different tools.

    How to Use the AI Macro Calculator

    It's a three-step workflow built for working coaches. First, enter your client's stats — name, goal, age, sex, weight, height, activity level, and any dietary restrictions. Second, hit Calculate with AI and Max calculates TDEE using Mifflin-St Jeor, applies the right deficit or surplus for the goal, and dials in protein, fat, and carbs. Then he explains the result in coach language and gives you tips to share with the client. Third, click Build Plan in MacroFuel and the same AI fills out a full meal plan around those exact targets — branded, exportable to PDF, and ready to send.

    Why Coaches Use MacroFuel's AI Macro Calculator

    Coaches use MacroFuel's AI macro calculator for one reason: it collapses the gap between calculation and deliverable. Standard calculators give you numbers — MacroFuel gives you numbers, an explanation your client can understand, coaching tips, and a complete plan in the same flow. That's the difference between an hour of admin work and ten minutes of real coaching. Macros are calculated using the same proven formulas (Mifflin-St Jeor + activity multipliers + goal-specific protein and fat targets) coaches already trust — but with AI doing the explanation and the plan-building work for you.

    "It used to take me 90 minutes or longer to create a meal plan for a client. Now I can do it in minutes. MacroFuel has completely changed how I run my business."
    — Sam Rentfro, Personal Trainer · Owner, Chevelle Fitness

    Free AI Macro Calculator for Personal Trainers

    MacroFuel offers a 14-day free trial — no credit card required. Calculate macros for as many prospective and existing clients as you want, and explore the full AI meal-builder workflow before deciding on a plan. Personal trainers, nutrition coaches, and gym owners all use the same workflow.