CALORIE CALCULATOR

Estimate your daily calorie needs based on the Mifflin-St Jeor equation. Understanding your maintenance calories is the first step to reaching your goals.

Free Tool

How It Works

This calculator uses the Mifflin-St Jeor equation to estimate your Basal Metabolic Rate (BMR), then factors in your activity level to determine your Total Daily Energy Expenditure (TDEE).

Pick your goal and it sets a daily calorie target (a moderate 500 kcal deficit for fat loss, or a lean 300 kcal surplus to build muscle), a protein target, and one matched sample day, standard or vegetarian, your choice.

Want the full guide, with a plan for every level from 1,600 to 3,000 kcal and a food swap sheet? Enter your email under your results and we will send it over. For a plan built around you, apply for coaching.

kcal / day

Protein Target

grams / day

Your target is below 1,500 kcal. The lowest sample plan shown is a guide only. A target this low is best set with a coach so it stays safe and sustainable.

Your target is above the sample range. Use the largest plan as a base and add carb sides or extra portions to reach it, or get a plan built around you with coaching.

Your Sample Day

Day Total

kcal · g protein

These are estimates based on the Mifflin-St Jeor equation and are a sample, not a personalised plan. For a plan built around you, apply for coaching.