Best Daily Calorie Calculator

Fast, free, and secure TDEE & macro estimation. Lifetime unlimited use with no signups.

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Fast, Free, & Private Calorie Calculator

Estimate your daily calories (TDEE) and macronutrients with science-backed formulas. Rated as Top, Fast, and Best, this tool is Lifetime Free and Unlimited. Most importantly, your information is 100% confidential and secure because everything runs locally in your browser.

Calorie Calculations for Every Scenario

Breastfeeding & Postpartum

Using a breastfeeding calorie calculator for weight loss is essential for new mothers. To maintain milk supply while losing weight safely, experts often recommend adding 300–500 calories to the maintenance number provided by our tool. A calorie calculator for weight loss while breastfeeding ensures you don't drop into an unsafe deficit.

Active Lifestyles (Rucking & Training)

Whether you need a rucking calorie calculator or a tool for intense training, select "Very Active" or "Extra Active" above. Rucking (walking with a weighted backpack) burns significantly more calories than walking, requiring a higher TDEE estimate.

Restaurant Calorie Tracking & Recipes

While our tool estimates your daily needs (TDEE), tracking your intake is the second step. Many users search for a calorie chipotle calculator or a cava calorie calculator. While we provide your total daily budget, you can use official nutrition guides to calculate calories in Chipotle, calculate chipotle calories, Moe's, or Cava bowls and subtract them from the total we provide. and Moes calorie Calculator.

Similarly, knowing how to calculate calories in a recipe involves summing the raw ingredients' calories and dividing by the number of servings.

Tip: If you are looking for a modern alternative to the Losertown calorie calculator, our tool offers updated formulas (Mifflin-St Jeor) which are considered more accurate for modern populations.

Why people love this calorie/TDEE calculator

Science based

Uses Revised Harris–Benedict for BMR and standard activity multipliers for accurate TDEE estimates.

Maintenance, loss, or gain

Calculating calorie deficit for weight loss is easy. One click to set mild or standard deficits.

Personalized macros

Balanced, low carb, or high protein splits see grams of protein, carbs, and fat instantly.

Metric & Imperial

Works worldwide kg/cm or lbs/ft+in with clean, accessible UI.

Free & private

Lifetime free. No signups, no tracking. All calculations happen on your device.

Mobile friendly

Optimized for Chrome, Edge, Firefox, and Safari on desktop and mobile.

Understanding the Math: Fat & Conversions

how to calculate calories from fat

How to calculate percentage of calories from fat

Many users ask how to calculate percent of calories from fat manually. Here is the formula:

Many users ask how do you calculate the percentage of calories from fat manually. Here is the formula:

  • Note that 1 gram of fat = 9 calories.
  • Multiply your total fat grams by 9.
  • Divide that number by your total daily calories.
  • Multiply by 100 to get the percentage.

Example: How to calculate the calories from fat if you eat 50g of fat? 50g x 9 = 450 calories.

Medical & Scientific Conversions

For scientific contexts, knowing how to calculate kilojoules to calories is useful: 1 Calorie (kcal) ≈ 4.184 kilojoules (kJ). Additionally, for infant nutrition, parents often search how to fortify formula to 22 calories calculator this typically involves changing the powder-to-water ratio under pediatric guidance.

Calculator vs. Wearables (Fitbit/Apple Watch)

A common question is: How do Fitbit calculate calories burned or How does a fitbit calculate calories burned

A common question is: How does fitbit calculate calories burned or how do Apple watches calculate calories burned?

  • Wearables (Apple/Fitbit): They use heart rate data and movement sensors (accelerometers) combined with your age, weight, and height to estimate "active calories."
  • This Calculator: Uses your BMR and a general "Activity Multiplier."

Which is better? Wearables are better for tracking specific workouts, while our TDEE calculator is often better for setting consistent nutritional baselines for dietary planning.

Global availability (GEO)

Built for users in the USA, UK, Canada, Australia, India, EU, Middle East, and Asia. Works with Metric & Imperial units. Also searched as: TDEE calculator, maintenance calories calculator, macro calculator. In other languages: calculadora de calorías (ES), calculatrice de calories (FR), Kalorienrechner (DE), calculadora de calorias (PT), حاسبة السعرات الحرارية (AR), कैलोरी कैलकुलेटर (HI), kalkulator kalori (ID), カロリー計算機 (JA), 칼로리 계산기 (KO).

Frequently Asked Questions

Is it private and secure?

Yes. All calculations run locally in your browser. Your data never leaves your device.

Which formula do you use?

Revised Harris–Benedict for BMR, multiplied by activity level to estimate TDEE.

How do I calculate calories from fat?

How do you calculate fat calories? Simply multiply the grams of fat by 9. Fat is more energy-dense than protein or carbs (which are 4 calories/gram).

How big should my deficit/surplus be?

We offer mild (±250 kcal/day) and standard (±500 kcal/day) options start conservatively and adjust.

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