Food Nutrition Search & Calculator
Search Any Food or Choose a Suggested Staple
Type any food name in the box above or tap a popular staple below to calculate instant calories and macros.
Soya Chunks / Nutrela (Dry / Raw)
Portion: 100g • Soy Products & Plant Protein
1,443 kJ equivalent
208 kcal from protein
132 kcal from carbs
5 kcal from fat
Meal Nutrition Plate
0 itemsAccumulate your whole meal's ingredients to view combined daily calories & macros.
Your Meal Plate is Empty
Search any food above and click "Add To My Plate", or try our sample high-protein athlete meal.
1日の消費カロリー＆カロリー収支計算機 (TDEE)
臨床医学で最も信頼されるミフリン・サン・ジェオール式（Mifflin-St Jeor）を用いて基礎代謝と総消費カロリーを算出。
Basal Metabolic Rate (BMR): 1,724 kcal (energy burned completely at rest).
Weight Management Targets
High Protein Fitness Split (40% C / 35% P / 25% F)
Z7-Day Zigzag Calorie Cycling ScheduleOvercome Plateaus ↓
Zigzag calorie cycling prevents metabolic slowdown during fat loss by incorporating higher-calorie refeed days on weekends while maintaining your exact weekly net deficit.
エネルギー単位変換ツール
キロカロリー (kcal) と キロジュール (kJ) を瞬時に相互変換します。
The Complete Guide to Using a Nutrition Calculator for Health, Fitness & Weight Loss
Whether your goal is rapid fat loss, lean muscle hypertrophy, athletic conditioning, or conscious nutritional awareness, achieving sustainable success starts with precision dietary data. Learn how our free nutrition calculator and calorie calculator ecosystem empower you to master energy balance.
1. What is a Nutrition Calculator & Why Precision Tracking Matters
A nutrition calculator is an analytical digital tool designed to translate raw food consumption into verifiable nutritional metrics: total energy (calories and kilojoules), macronutrients (protein, carbohydrates, dietary fats), and micronutrients (dietary fiber, natural sugars, and sodium). While traditional calorie counting frequently relied on approximate guesses or confusing volumetric portion cups, a modern free nutrition calculator connects directly to comprehensive scientific nutritional repositories like the USDA FoodData Central and Open Food Facts.
Clinical metabolic research consistently demonstrates that self-reported calorie intake without an objective food calculator underestimates true daily consumption by an average of 30% to 50%. Even experienced athletes frequently misjudge caloric density in calorie-dense staples like cooking oils, nut butters, salad dressings, and grains. By weighting portions in grams or selecting standardized piece counts, you replace estimation with empirical nutritional accuracy.
2. Food Nutrition Calculator: Decoding Calories & Macronutrients
Every whole food and packaged edible item derives its energetic fuel from three primary macronutrients, analyzed through the clinical Atwater factor system in our food nutrition calculator:
- Dietary Protein (4 kcal/g)Essential amino acids required for muscle protein synthesis, enzyme production, and immune function. Features the highest Thermic Effect of Food (~25%).
- Carbohydrates (4 kcal/g)The body’s preferred rapid fuel source for glycolytic physical exercise and central nervous system cognition. Includes dietary fiber which supports gut microbiome health.
- Total Fats (9 kcal/g)The most energy-dense macronutrient, fundamental for steroid endocrine synthesis (testosterone, estrogen), cellular membranes, and absorption of fat-soluble vitamins (A, D, E, K).
When you search any item in our food calorie calculator, whether it is raw chicken breast, boiled eggs, chia seeds, brown rice, or fresh fruit, you receive instantaneous recalculation according to the exact portion scale you specify. Using an online food calculator ensures you never overlook hidden calories from cooking oils, condiments, or marinades.
3. Recipe Nutrition Calculator: Building Balanced Meals & Plates
Most people do not consume single ingredients in isolation; meals are culinary combinations of proteins, complex carbohydrates, vegetables, cooking fats, and seasoning sauces. Using a dedicated recipe nutrition calculator bridges the gap between raw ingredients and real-world dining.
With our interactive Meal Plate builder, you can add multiple distinct items into a single unified meal log. For instance, combining 150 grams of cooked chicken breast, 200 grams of basmati white rice, 100 grams of steamed broccoli, and 10 grams of extra virgin olive oil immediately aggregates into a comprehensive FDA-standard nutrition facts label. Rather than estimating mixed dishes, this intelligent food calculator dynamically tracks cumulative calories, net carbs, and high-quality protein. This feature transforms the tool into a powerful recipe nutrition calculator, enabling fitness enthusiasts, meal preppers, and culinary home cooks to formulate balanced meal recipes before firing up the stove.
4. Maintenance Calorie Calculator: Finding Your True Energy Balance
Your baseline daily energy expenditure is governed by the laws of thermodynamics. To understand how much fuel your body requires to neither gain nor lose weight, our maintenance calorie calculator calculates your Total Daily Energy Expenditure (TDEE) based on two clinical components:
- Basal Metabolic Rate (BMR): The baseline caloric energy expended simply keeping your brain, heart, lungs, and cellular organs alive in a resting, post-absorptive state. We employ the peer-reviewed Mifflin-St Jeor equation, verified in multiple clinical trials as the most accurate non-invasive predictive formula.
- Physical Activity Level (PAL): Multipliers ranging from Sedentary (1.2x) to Extra Active (1.9x) that account for occupational non-exercise activity thermogenesis (NEAT), planned athletic training, and the thermic effect of digested food (TEF).
Identifying your maintenance baseline with our calorie calculator is the indispensable foundation for every successful body composition journey. Without an accurate maintenance anchor, any targeted surplus or deficit becomes pure conjecture.
5. Calorie Calculator for Weight Loss: Setting a Safe, Sustainable Deficit
Once your maintenance threshold is determined, utilizing our calorie calculator for weight loss allows you to formulate a customized daily calorie calculator target tailored to your personal timeline and lifestyle:
Yields ~0.5 lb (0.25 kg) loss per week. Ideal for athletes with low starting body fat looking to preserve 100% of strength and workout performance.
Yields ~1.0 lb (0.45 kg) loss per week. The gold-standard recommended deficit supported by sports dietitians worldwide for healthy, steady progress.
Yields ~1.5 lb (0.7 kg) loss per week. Recommended only for individuals with higher initial body fat or short-term competition deadlines.
Crucially, our weight loss engine also features a Zigzag Calorie Cycling schedule. By undulating calories higher on intensive training days (e.g. heavy leg workouts) and lower on rest days, you sustain thyroid function, leptin signaling, and glycogen stores while remaining in an identical weekly net deficit.
6. Macronutrient Reference Table for Fitness Goals
Use this empirical guide alongside our food nutrition calculator and daily calorie calculator to balance your daily intake:
| Goal / Protocol | Protein Target | Fats Target | Carbohydrates Target | Primary Benefit |
|---|---|---|---|---|
| Fat Loss / Cutting | 1.8 – 2.4 g/kg | 20% – 25% of calories | Remainder of calories | Max muscle retention & high satiety |
| Maintenance / Health | 1.4 – 1.8 g/kg | 25% – 30% of calories | 45% – 55% of calories | Optimal hormonal balance & energy |
| Muscle Building / Bulking | 1.6 – 2.0 g/kg | 20% – 25% of calories | 50% – 60% of calories | Maximum progressive overload & recovery |
| Endurance Athletics | 1.2 – 1.6 g/kg | 20% – 25% of calories | 60% – 70% of calories | Supercompensated muscle glycogen stores |
Evidence-Based FAQ & Calorie Guide
Have specific questions about recipe nutrition, meal macros, or setting a calorie deficit? Check our detailed FAQ answers below.
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よくあるご質問 (FAQ)
栄養計算やカロリー収支に関する疑問に科学的根拠に基づいてお答えします。
1栄養やカロリーはどうやって計算しますか？
正確に計算するには：1) スプーンやカップではなく、デジタルキッチンスケールを使って食材をグラム単位で計量します。2) 文部科学省食品成分表やUSDAなどの検証済みデータベースで食材を検索します。3) アトウォーター係数（たんぱく質4kcal、炭水化物4kcal、脂質9kcal）でエネルギーを確認します。4) 1日の総摂取量を総エネルギー消費量（TDEE）と比較します。
2最もおすすめの栄養計算機はどれですか？
正確なグラム単位での計算に対応し、公的機関や300万品目以上の検証済みデータベースに接続しており、広告や有料課金のない計算ツールが最適です。Nutrition Calculator Freeは完全無料で高精度かつプライバシーを重視した計算を提供します。
3料理・レシピ全体の栄養を計算するには？
1) レシピに使うすべての食材を生または調理後のグラム重量で記録します。2) 各食材のカロリー、たんぱく質、炭水化物、脂質を計算します。3) すべての食材の数値を合計します。4) 合計値を出来上がりの皿数や分量で割ることで、1食あたりの栄養価が算出できます。
41食分の食事プレートの栄養を計算するには？
お皿に盛る食材（例：鶏むね肉150g、玄米200g、ブロッコリー100g、オリーブオイル10gなど）をそれぞれ計量し、食事プレートビルダーに追加します。瞬時にカロリー、PFCバランス、食物繊維、塩分相当量が集計されます。
51日に必要な栄養素とカロリーの目安は？
基礎代謝量（BMR）とTDEE（総消費カロリー）に基づきます。減量ならTDEEからマイナス500kcal、筋肉増量ならプラス300kcalを目安にします。たんぱく質は体重1kgあたり1.4〜2.2g、脂質は総摂取エネルギーの20〜35％、残りを良質な炭水化物から摂取することが推奨されます。
6カロリー不足（アンダーカロリー）計算機とは？
脂肪を減少させるために、日々の消費カロリー（TDEE）を下回る目標カロリーを算出するツールです。体脂肪1kgは約7,200〜7,700kcalに相当するため、毎日500kcalの不足を作ることで週に約0.45kgの健康的な脂肪減少が期待できます。
7無料でカロリー設定を行う方法は？
TDEE計算機で性別、年齢、身長、体重、活動レベルを入力し、減量ペース（緩やか・標準・積極的）を選択するだけで、目標摂取カロリーとPFC目標値が即座に表示されます。
8どれくらい体重が減りますか？
毎日500kcalのアンダーカロリーを維持した場合、1週間で約0.45kg、12週間で約5.4kgの体脂肪減少が見込めます。筋力トレーニングと十分なたんぱく質摂取を組み合わせることで筋肉量の減少を防ぎます。
9最も科学的に正確なカロリー計算式は何ですか？
臨床研究において健康な成人で最も誤差が少ないとされるのが「ミフリン・サン・ジェオール（Mifflin-St Jeor）式」です。体脂肪率が測定できている場合は除脂肪体重を考慮したキャッチ・マカードル式も高精度です。
10食費を抑えながら高たんぱく質な栄養を摂るには？
卵、大豆製品（納豆・豆腐）、鶏むね肉、オートミールなどの高コスパ栄養食品を活用するのが効果的です。当サイトの食品データベースでコスパと栄養密度の高い食品を簡単に比較検索できます。
Understanding Nutrition Science & Formulas
How calories, macronutrients, and metabolic equations work together to drive body composition.
Calories (kcal)
The basic unit of dietary energy. 1 nutritional Calorie (kcal) equals 1,000 thermal calories or 4.184 kilojoules (kJ). Governs overall weight gain, loss, and maintenance.
Protein
Essential building blocks (amino acids) for skeletal muscle tissue, enzymes, and hormones. Has the highest Thermic Effect of Food (TEF ~20-30%) and boosts satiety.
Carbohydrates
The primary fast-burning fuel for the central nervous system and high-intensity anaerobic exercise. Stored in liver and muscle as glycogen.
Total Fat
Crucial for steroid hormone production (testosterone, estrogen), fat-soluble vitamin absorption (A, D, E, K), and cellular membrane integrity.
BMR Equation Comparison: Which is Most Accurate?
1. Mifflin-St Jeor Equation
Introduced in 1990, clinical trials confirm Mifflin-St Jeor is the most accurate formula for estimating BMR in healthy individuals without requiring laboratory body fat analysis (accurate within ±10% for over 82% of individuals).
Women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age) - 161
2. Revised Harris-Benedict Formula (1984)
The original 1919 Harris-Benedict formula was revised by Roza and Shizgal in 1984. It remains widely cited in clinical medicine, though it can slightly overestimate caloric expenditure compared to modern indirect calorimetry chambers.
3. Katch-McArdle Formula (Lean Mass Specific)
Calculates resting daily energy expenditure based directly on Lean Body Mass (LBM). Ideal for lean athletes, bodybuilders, and fitness enthusiasts with a verified DEXA or hydrostatic body fat measurement.