⚖️ Health & Fitness

BMI & Calorie Calculator

Calculate your Body Mass Index, daily calorie needs (TDEE), and personalized macros — all in one place. Supports both imperial and metric.

Biological Sex

Age

Weight (lbs)

Height (ft)

FeetInches

Height (cm)

Activity Level

Goal

📊 BMI Analysis

–

Body Mass Index

Your BMI

–

healthy range

Normal Weight

Underweight
<18.5 Normal
18.5–24.9 Overweight
25–29.9 Obese
30+

🔥 Daily Calorie Needs (TDEE)

–

calories/day

Maintenance (TDEE)

–

calories/day

Goal Calories

🥗 Macro Breakdown

–

grams/day

🥩 Protein

–

grams/day

🌾 Carbs

–

grams/day

🥑 Fat

📏 Ideal Weight Formulas

Frequently Asked Questions

What is BMI and how is it calculated?

BMI (Body Mass Index) is weight in kg divided by height in meters squared (kg/m²). It's a general screening tool for weight categories — not a diagnosis. A BMI of 18.5–24.9 is considered healthy for most adults.

What is TDEE?

Total Daily Energy Expenditure (TDEE) is the total number of calories your body burns per day — including exercise and daily activities. Eating at TDEE maintains your weight. Eating below it causes weight loss, and above it causes weight gain.

How accurate is this calculator?

We use the Mifflin–St Jeor equation for BMR, which is considered the most accurate general formula. Results are estimates — individual metabolism varies. Always consult a healthcare professional for personalized advice.

What macros should I eat?

Our macro recommendations follow balanced nutrition guidelines: ~30% protein, ~40% carbs, ~30% fat. These can be adjusted based on your specific goals and dietary preferences. A registered dietitian can help tailor these further.

⚕️ Medical Disclaimer: This calculator provides general health information for educational purposes only. Results are estimates and should not replace advice from a qualified healthcare professional. Always consult a doctor before making significant changes to your diet or exercise routine.