Reverse Diet Calculator — Add Calories Back Safely
A reverse diet raises calories gradually instead of jumping straight back to maintenance. Going from 1,500 to 2,200 kcal over 8 weeks means adding about 88 kcal per week. The point is not a metabolic trick — it is appetite regulation, training recovery and not undoing months of work in a fortnight of unrestricted eating.
What is Reverse Diet Calculator?
The metabolic damage framing is overstated. What actually happens after a long diet is that appetite hormones are elevated, training quality is poor, and the habit of restraint disappears abruptly.
Adding calories slowly lets you find the point where weight starts to creep up, rather than overshooting past it.
Reverse dieting is most useful after a long or aggressive deficit, and much less necessary after a short, moderate one.
How to use this calculator
- Enter the daily intake you finished your diet on.
- Enter the maintenance calories you are aiming for.
- Choose how many weeks to take — 8 is typical, 12 is gentler.
- Hold each weekly step for a full week and watch your 7-day weight average before moving up.
How the step size is calculated▾
The gap between your current intake and your target maintenance is divided by the number of weeks you want to take. Carbohydrate is raised first because it restores glycogen and training performance fastest; fat comes later.
weekly increase = (target intake − current intake) ÷ weeksSource: Standard diet-break progression practice.
Frequently asked questions
Will I gain fat during a reverse diet?▾
Some water and glycogen weight is normal in the first week or two — that is not fat. If the 7-day average climbs for two consecutive weeks, hold at that intake instead of increasing.
Do I need to reverse diet?▾
Not always. After a short, moderate deficit you can usually return to maintenance directly. It matters most after long or aggressive diets, or if you plan another diet soon.
What should I add first?▾
Carbohydrate. It restores glycogen and training output faster than fat, and it is the macronutrient people restrict hardest during a diet.
Related calculators
References & method
- Standard diet-break progression practice.
Every formula, its published source and its assumptions are listed on our methodology page. This page is written for information and has not been reviewed by a clinician.
Read the methodology →These figures are estimates from population formulas, not medical advice. Individual needs vary. If you are pregnant, managing a medical condition, or under 18, talk to a doctor before changing your diet.