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Calorie Calculator – Calculate Daily Calorie Needs (TDEE) Free

Estimate daily calorie needs (TDEE) using age, gender, height, weight, and activity level. Free online calorie calculator.

Estimated daily calories (TDEE)

2556 kcal

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What is Calorie Calculator?

A calorie calculator estimates your Total Daily Energy Expenditure (TDEE) — the number of calories your body needs each day based on your age, gender, height, weight, and activity level. It uses the Mifflin-St Jeor equation to calculate Basal Metabolic Rate (BMR) and multiplies by an activity factor.

How to Use Calorie Calculator

  1. 1Enter your age, gender, height, and weight.
  2. 2Select your activity level.
  3. 3Your TDEE (daily calorie needs) is calculated instantly.

Key Features

  • ✓Mifflin-St Jeor BMR formula
  • ✓Activity level multipliers
  • ✓Calorie goals for weight loss, maintenance, and gain
  • ✓Metric and imperial units

Benefits

  • →Set realistic calorie goals for weight management
  • →Understand your baseline calorie needs
  • →Plan diet and nutrition based on activity level

Why Use Irreva for Calorie Calculator?

Runs 100% in your browser — files never leave your device.
No account, no sign-up, no subscription — free forever.
Works on any device: desktop, tablet, or mobile.
No file size limits from our infrastructure.
Instant results — no server round-trip latency.
Open-source libraries and transparent processing.

Frequently Asked Questions

What is TDEE?

TDEE (Total Daily Energy Expenditure) is the total number of calories you burn in a day, including your basal metabolic rate and physical activity.

What is BMR?

BMR (Basal Metabolic Rate) is the number of calories your body needs at complete rest to maintain basic functions like breathing and circulation.

How accurate is this calculator?

The Mifflin-St Jeor equation is considered the most accurate for most people, but individual metabolism varies. Use the result as a starting estimate.

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