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100% Grátis • Meta por Prazo • Segurança Metabólica

Calculadora de Déficit Calórico

Calcule exatamente quantas calorias consumir por dia para atingir seu peso ideal no prazo desejado com segurança.

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Goal & Weight Timeline

Define your starting weight, target goal, and deadline.

2 Weeks12 Weeks (3 Mo)52 Weeks (1 Yr)
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Sua Meta Calórica DiáriaTarget Calorie Budget
1,453kcal / dia

Consuma este total por dia para cumprir seu objetivo no prazo.

Déficit Diário Necessário-917 kcal
Ritmo Semanal Estimado0.83 kg / wk
Total a Emagrecer10 kg
Sustainable Deficit: This pace is medically safe and preserves metabolic rate and muscle.
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Tabela de Projeção Semanal

Projected weight trajectory over your 12-week timeline.

SemanaPeso ProjetadoPerda Acumulada
W1Week 177.2 kg-0.8 kg
W2Week 276.3 kg-1.7 kg
W3Week 375.5 kg-2.5 kg
W4Week 474.7 kg-3.3 kg
W5Week 573.8 kg-4.2 kg
W6Week 673 kg-5 kg
W7Week 772.2 kg-5.8 kg
W8Week 871.3 kg-6.7 kg
W9Week 970.5 kg-7.5 kg
W10Week 1069.7 kg-8.3 kg
W11Week 1168.8 kg-9.2 kg
W12Week 1268 kg-10 kg
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Thermodynamics & Safe Fat Loss Physiology

Como o Déficit Calórico Promove o Emagrecimento

Resumo: O déficit calórico ocorre quando o gasto de energia é maior que o consumo. Cada 1 kg de gordura equivale a aproximadamente 7.700 kcal.

Weight loss is fundamentally governed by the First Law of Thermodynamics: consuming fewer calories than your Total Daily Energy Expenditure (TDEE) forces your body to oxidize stored adipose tissue (body fat) and glycogen to satisfy energetic demands.

Calorie Deficit Magnitudes, Fat Loss Rates & Lean Mass Preservation

Comparing deficit magnitudes to balance fat oxidation speed against metabolic adaptation and hormonal health:

Deficit StrategyDaily Calorie CutWeekly Weight LossMuscle Retention & Sustainability
Mild Deficit (10–15%)250 – 350 kcal/day0.5 lbs / 0.25 kgOptimal (99%+ muscle preserved; zero diet fatigue)
Moderate Deficit (20–25%)500 – 750 kcal/day1.0 – 1.5 lbs / 0.5 – 0.7 kgGold Standard (High fat loss with strength retention)
Aggressive Deficit (30–35%)1,000+ kcal/day2.0+ lbs / 1.0 kgModerate risk of muscle catabolism and metabolic slowdown

Diretrizes para um Déficit Saudável

Mantenha um déficit de 300 a 600 kcal e priorize proteínas e musculação para evitar a perda muscular.

Frequently Asked Questions

Entre 300 e 500 kcal diárias para perder cerca de 0,5 kg por semana.