Calculate your daily calorie needs using the Mifflin-St Jeor equation. Get personalized goals for weight loss, maintenance & gain.
Need a Calorie Calculator Online to figure out how many calories you actually burn each day? This tool uses the Mifflin-St Jeor equation to give you a precise TDEE (total daily energy expenditure) based on your gender, age, height, weight, and activity level. One clear answer: enter your details once, and you’ll instantly see your daily calorie needs for weight maintenance, plus customized targets for losing or gaining weight.
Tap ♂ Male or ♀ Female at the top. This changes the base BMR formula.
Type your age (years), height (cm or ft/in), and weight (kg). The height toggle lets you switch units without converting manually.
Open the dropdown and select how active you are daily, from Sedentary to Extra Active.
Press the purple "Calculate" button. Your Calorie Calculator Online instantly shows TDEE in large text, plus five goal calories and three macro numbers.
Hit "↺ Reset" to clear everything and start over.
| Feature | What It Does |
|---|---|
| Gender Toggle | Switch between male / female – BMR formula adjusts automatically |
| Age Input | Enter years (1–120) for metabolic baseline |
| Height Unit Toggle | Use cm OR feet/inches – converts on the fly |
| Weight Input | Enter kg (supports decimals) |
| Activity Dropdown | 5 levels from Sedentary (1.2) to Extra Active (1.9) |
| 5 Goal Cards | Lose Fast (-1000), Lose Slow (-500), Maintain, Gain Slow (+500), Gain Fast (+1000) |
| Macro Display | Protein (g), Carbs (g), Fat (g) calculated from TDEE |
| Calculate Button | Recalculates all values instantly |
| Reset Button | Clears all fields with one click |
Mifflin-St Jeor equation, clinically used for BMR and TDEE.
No second tool needed. Get protein, carbs, and fat grams automatically calculated from your TDEE.
Works on mobile, tablet, and desktop with stacked layouts under 720px.
Five color-coded goal cards show fast/slow loss, maintenance, and fast/slow gain.
Switch between cm and feet/inches without leaving the calculator.
Your Calorie Calculator Online does more than show one number. It gives you a complete calorie roadmap. After you hit calculate, five goal cards appear side by side: Lose Fast (cut 1000 kcal), Lose Slow (cut 500 kcal), Maintain (your exact TDEE), Gain Slow (+500 kcal), and Gain Fast (+1000 kcal). Below that, three macro boxes show exactly how many grams of protein, carbs, and fat to eat daily. This implies that there’s no need for separate calculators for macro tracking, muscle gain, or weight loss; everything is in one location.
It estimates how many calories your body burns daily based on age, gender, height, weight, and activity level.
Yes. This Calorie Calculator Online uses the Mifflin-St Jeor equation, which only needs basic stats – no body fat required.
Look at the “Lose Slow” or “Lose Fast” goal cards after calculating. Those numbers are your daily calorie targets for weight loss.
Yes. It shows protein, carbs, and fat grams automatically below the goal cards, based on your TDEE.
BMR is calories burned at complete rest. TDEE includes daily activity. This tool shows TDEE as your maintenance calories.
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