Reverse Diet Calculator

How many calories to eat next week, and the full schedule from where you are now back up to maintenance.

Where you are eating now, and where you are heading
kcal

What you are actually eating at the end of the cut, not what the plan said.

kcal

Recalculate it at your new weight. You are lighter than when you started, so the old figure is too high.

kcal

50 to 200 kcal a week suits most people. Smaller steps take longer and tell you more.

Next week's target1,900kcal/day

week 1 of 8 — adding 100 kcal a week from 1,800 up to 2,600

Weeks to maintenance 8 weeks
Weekly increment +100 kcal
Total to add 800 kcal

The full weekly schedule
WeekDaily caloriesAdded so far
1 1,900 +100
2 2,000 +200
3 2,100 +300
4 2,200 +400
5 2,300 +500
6 2,400 +600
7 2,500 +700
8 2,600 +800

Expect two to three kilograms on the scale in the first fortnight that is glycogen and water, not fat. Weigh daily, average weekly, and judge the trend after three weeks rather than reacting to the first jump.

This calculator needs JavaScript to recalculate. The answer shown above was worked out when the page was built and is correct for the date in the address bar.

Last checked

Worked example: 1,800 kcal now, 2,600 at maintenance

WeekDaily caloriesAdded so far
11,900+100
22,000+200
32,100+300
42,200+400
52,300+500
62,400+600
72,500+700
82,600+800

Eight weeks at 100 kcal a week. Doubling the step to 200 halves it to four. The schedule is not the interesting part — the interesting part is that most people finishing a cut have no plan at all for this phase and simply stop tracking, which is how a hard-won deficit becomes a fast regain.

What a reverse diet is, and what the evidence supports

A reverse diet is adding calories back gradually after a period of restriction, rather than in one step. The strong version of the claim — that a slow climb repairs a damaged metabolism and lets you eat far more than before at the same weight — is not well supported.

What is real: total daily energy expenditure does fall during a cut by more than the weight loss alone predicts. Part of that is a smaller body needing fewer calories; part is adaptive, including a genuine drop in spontaneous movement. That component recovers when energy is plentiful again, but it recovers to roughly where it should be, not to somewhere higher.

What is oversold: the idea that reverse dieting produces a permanently higher maintenance. It does not. What it produces is a controlled transition in which you find out where your maintenance actually is, week by week, instead of guessing.

That is worth doing for two ordinary reasons. First, glycogen and water return with the carbohydrate, and several kilograms can appear on the scale in a fortnight. If you have not been warned, that reads as fat regain and often triggers another cut. Second, appetite after a long deficit is not a reliable guide, and a structured number is easier to follow than an instruction to eat normally.

How big should the step be?

Between 50 and 200 kcal a week for most people. Smaller steps take longer and give a clearer signal about where maintenance actually is; larger steps get you out of a deficit faster, which matters if the cut has been long. If you have been dieting for months and are underweight, tired or losing performance, the correct answer may be to go straight back to maintenance rather than to schedule a climb at all.

Methodology

Weeks = ceiling of (maintenance − current) ÷ step. Each week's target is the current intake plus the step multiplied by the week number, capped at maintenance so the last week lands exactly on it rather than overshooting. If maintenance is at or below current intake, there is nothing to reverse and the page says so. Schedules longer than 52 weeks are truncated: a plan longer than a year is not a plan.

Limitations

The maintenance figure you enter is the weak link, and it is probably out of date. If you have just finished a cut, you are lighter than you were, so your maintenance is lower than it was; and the adaptive component means it is temporarily lower still. Work it out fresh at your current weight with the maintenance calculator, and expect the real figure to drift upward over the weeks as the adaptive component recovers.

This page does not predict your weight during the climb. It cannot: glycogen and water return with the carbohydrate and can add two to three kilograms in the first fortnight with no fat gain at all. Weigh daily, take a weekly average, and judge the trend after three weeks rather than reacting to the first jump.

None of this is a diet plan for a clinical situation. Returning to normal eating after prolonged severe restriction is a medical process with real risks, and a schedule generated by a web page is not the tool for it.

This is a fitness estimate, not medical advice, and not a substitute for a professional who can actually see you. If you have any history of disordered eating, this whole category of tool is best used with a dietitian rather than alone.

Common questions

How fast should I add calories after a diet?

50 to 200 kcal a week is the usual range. Smaller steps give a clearer picture of where your maintenance really is; larger steps end the deficit sooner, which matters if the cut has been long. Going from 1,800 to 2,600 at 100 a week takes eight weeks; at 200 a week it takes four.

Does reverse dieting repair your metabolism?

Not in the way the phrase implies. Energy expenditure does fall during a cut by more than weight loss alone accounts for, and that component recovers when energy is plentiful again — but it recovers to roughly where it should be, not to somewhere higher than before. What a reverse diet reliably gives you is a controlled transition and a real measurement of your maintenance, which is worth having on its own.

Will I gain weight during a reverse diet?

Some, and most of it early and not fat. Glycogen binds water, so returning carbohydrate can put two to three kilograms on the scale within a fortnight. If you do not expect that it reads as failure. Judge the trend from a weekly average after three weeks, not from the first jump.

Do I need to reverse diet at all?

Not necessarily. Going straight back to maintenance is a legitimate option and for a short cut it is usually the right one. The case for a schedule is strongest after a long or aggressive deficit, and for people who find that unstructured eating after months of tracking goes badly.

What if my maintenance is lower than I thought?

Then the schedule finishes early and you find out, which is the point. That is the practical argument for a slow climb: each week is a small test. If weight starts rising steadily before you reach the figure you entered, your real maintenance is where you are now, and the number you typed in was optimistic.

Should I keep protein the same while reversing?

Yes. Protein stays where it was — it is set from bodyweight, not from calories — and the added calories come from carbohydrate and fat. The macro calculator does that split correctly if you re-run it at each new total.