🥗 DietDeck

Free Diet & Nutrition Calculators

23 fast, private tools for calories, macros, weight loss, keto, fasting and daily nutrition targets. No sign-up, no downloads — everything runs right in your browser.

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Calories & BMR

Daily calorie needs, BMR, TDEE and calorie deficit calculators.

Calorie CalculatorTDEE CalculatorBMR CalculatorCalorie Deficit Calculator
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Macros

Protein, carb and fat macro calculators for any goal.

Macro CalculatorProtein Intake CalculatorCarb Intake CalculatorFat Intake Calculator
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Weight Loss

BMI, ideal weight, body fat and weight loss goal calculators.

BMI CalculatorIdeal Weight CalculatorBody Fat Calculator (Navy Method)Waist-to-Height Ratio+2 more
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Specific Diets

Keto macros, vegan protein and intermittent fasting planning.

Keto Macro CalculatorVegan Protein CalculatorIntermittent Fasting Scheduler
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Nutrition Facts

Water, fiber, sugar, sodium, caffeine and meal calorie tools.

Water Intake CalculatorFiber Intake CalculatorSugar Intake CalculatorSodium Intake Calculator+2 more

All 23 Tools

Calorie Calculator
Free calorie calculator: find how many calories you need per day with …
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TDEE Calculator
Calculate your TDEE (total daily energy expenditure) from BMR and acti…
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BMR Calculator
Calculate your BMR (basal metabolic rate) — the calories your body bur…
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Calorie Deficit Calculator
Calculate the right calorie deficit for weight loss. Enter maintenance…
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Macro Calculator
Calculate your daily macros (protein, carbs, fat) in grams for cutting…
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Protein Intake Calculator
Calculate how much protein you need per day based on body weight, goal…
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Carb Intake Calculator
Calculate how many grams of carbs you should eat per day based on calo…
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Fat Intake Calculator
Calculate how many grams of fat you should eat per day. Healthy minimu…
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Keto Macro Calculator
Calculate keto macros: fat, protein and net carbs for a ketogenic diet…
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Vegan Protein Calculator
Calculate your daily protein target on a vegan or vegetarian diet and …
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Intermittent Fasting Scheduler
Plan your intermittent fasting schedule: 16:8, 18:6, 20:4 and more. Se…
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BMI Calculator
Calculate your Body Mass Index in metric or imperial units. See your B…
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Ideal Weight Calculator
Estimate your ideal body weight with the Devine, Robinson, Miller and …
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Body Fat Calculator (Navy Method)
Estimate body fat percentage with the US Navy circumference method. En…
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Waist-to-Height Ratio
Calculate your waist-to-height ratio — a better health risk indicator …
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Portion Size Calculator
Calculate calories per portion from total package calories, or find th…
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Weight Loss Goal Calculator
How long will it take to reach your goal weight? Enter current weight,…
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Water Intake Calculator
Calculate how much water you should drink daily based on weight and ac…
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Fiber Intake Calculator
Calculate how much dietary fiber you need per day based on calories, a…
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Sugar Intake Calculator
Calculate your maximum daily added sugar based on WHO/AHA guidelines: …
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Sodium Intake Calculator
Calculate your daily sodium limit in mg and salt in grams. WHO recomme…
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Caffeine Limit Calculator
Calculate your safe daily caffeine limit based on body weight (max 5.7…
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Meal Calorie Calculator
Split your daily calories across meals. Balanced 3-meal, cutting, or O…
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Free Diet & Nutrition Calculators

DietDeck gives you 23 free diet and nutrition tools in one place: calorie, BMR and TDEE calculators, macro and protein targets, calorie deficit and weight loss goal planning, BMI, body fat and waist-to-height ratio, keto macros, vegan protein and intermittent fasting schedules, plus daily targets for water, fiber, sugar, sodium and caffeine. Every tool runs entirely in your browser — instant results, nothing uploaded, no account needed. Bookmark DietDeck and take the guesswork out of eating well.