Free calorie and fitness calculators

Nineteen free calculators for the numbers behind a calorie target: how much you burn, how much to eat, how to split it into protein, carbs and fat, and what a specific order or drink costs. Every one runs in your browser, in metric or imperial units, with nothing sent or stored.

TDEE calculator

Total daily energy expenditure and maintenance calories at all five activity levels, with cut and bulk targets.

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BMR calculator

Basal metabolic rate by Mifflin-St Jeor, revised Harris-Benedict and Katch-McArdle, side by side.

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Calorie deficit calculator

Daily calories to lose weight at a safe weekly rate, and the date you would reach your goal weight.

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Protein calculator

Grams of protein per day for your weight, whether you train, diet or are over 65, split across your meals.

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Macro calculator

Daily protein, carbs and fat in grams from a ratio like 40/30/30 or a split you set yourself.

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Calories burned calculator

Calories burned walking, running, cycling, swimming, lifting or by steps, from MET values and your weight.

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Chipotle calorie calculator

Build a bowl, burrito, salad or tacos and watch the calories, protein, carbs and fat add up live.

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Calorie calculator

Daily calorie needs for your goal with a macro breakdown, using Mifflin-St Jeor or Harris-Benedict.

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Low-calorie Starbucks drinks

25 Starbucks drinks sorted by calories, sugar, protein and caffeine, from the official U.S. menu data.

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Starbucks calorie calculator

Published calories, macros and caffeine for a drink and size, with standard-recipe limits.

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Subway calorie and nutrition calculator

Build a sub from published bread, protein, cheese, vegetable and sauce portions.

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CAVA calorie calculator

Build a bowl from CAVA’s published bases, proteins, dips, toppings and dressings.

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Taco Bell calorie calculator

Search the published menu, build an order and compare supported customizations.

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Dunkin’ calorie calculator

Find published drink recipes by size and milk, then add doughnuts or other food.

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Panda Express calorie calculator

Choose a bowl, plate or bigger plate and sum published sides and entrées.

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BMI calculator

Calculate weight divided by height squared, with adult reference categories and limits.

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Ideal weight calculator

See the adult BMI reference weight range alongside historical weight formulas.

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Body fat calculator

Compare circumference and BMI-based estimates, with error margins and military-standard context.

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Water intake calculator

Compare total-water references and a weight-based convention, including water in food.

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How these calculators work

The energy calculators use Mifflin-St Jeor and other cited formulas. BMI, weight and body-fat tools each explain their own methods and limits; the water calculator distinguishes total water from beverages. Calories burned uses MET values from the Compendium of Physical Activities, and the restaurant pages use the chains' own published nutrition data. Every page prints its formulas, links its sources and computes the result in your browser, so you can check the arithmetic and nothing you type leaves the page.

A calculator gives you a reference; logging records what you actually eat. PlateLens logs a meal from a photo, a plain-words description, your voice or a barcode, fixes a portion in one sentence, and compares each day with your goal, whether that is losing, maintaining or gaining weight.

Now track what you eat

The calculators provide references; PlateLens counts what you actually eat each day from a photo, text, voice or barcode, and compares it with your goal.