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Calorie Cycling Calculator

Calorie cycling means eating more on some days and less on others. This calculator keeps the weekly total where your goal puts it and shows what each kind of day comes to.

For a 30-year-old man who weighs 75 kg and is 178 cm tall (lightly active) eating an average of 1,862 kcal a day, 2 high days a week at 2,148 kcal and 5 low days at 1,748 kcal add up to 13,036 kcal for the week.

Set up your high and low days

The result below starts from the example's numbers. Change any field and it updates as you type.

Weekly average: kcal below maintenance
High days a week
Gap between high and low days (kcal)
High days
2,148kcal
2 a week
Low days
5 a week
Weekly average
1,862kcal/day
maintenance is 2,362
Week total
13,036kcal
target 13,034
One way to lay out the week
DayTypeCalories
MonLow1,748
TueLow1,748
WedHigh2,148
ThuLow1,748
FriLow1,748
SatHigh2,148
SunLow1,748

The same week eaten evenly would be 1,862 kcal every day. Move the high days to whichever days suit you.

Track this target every day

Use the number above as your daily goal in CalorTracker, then log meals by photo, voice or text and see where your day stands against it. Free to start, no card needed to explore.

Results are estimates from published formulas, not medical advice. Your own body can sit above or below them.

Where the formulas come from, and how we check them: how we calculate.

How calorie cycling works here

First it finds your weekly average the way the calorie calculator does: maintenance (TDEE) moved by your goal. Then it chooses a higher number for the high days and a lower one for the rest, so that the seven days add up to the same total as eating that average every day. You choose how many high days (one to three) and how big the gap is.

The arithmetic

  • Weekly total = average × 7.
  • Low day = average − gap × high days ÷ 7, rounded to a whole number.
  • High day = low day + gap.

Because the weekly total is the same, the expected change in weight over the week is the same as eating steady, by the usual arithmetic of about 7,700 kcal per kilogram. This tool does not claim that cycling gets better results than eating the same amount every day. It is a way to arrange a budget you already have, and some people simply find it easier to live with.

The lowest day we will give you

A low day never falls below 1,200 kcal for women and 1,500 kcal for men. If your chosen gap would push it lower, the gap is shortened and the page tells you. When you lose weight, the weekly average itself also stops at that minimum.

Laying out the week

The table shows one way to spread the high days. Put them on the days you train hard, or have a dinner out, or whichever you find easier to eat more on. Only the weekly total matters to the arithmetic.

Frequently asked questions

What is calorie cycling?
Eating a different number of calories on different days, for example more on some days and less on others, while keeping the weekly total at your target.
Does calorie cycling work better than eating the same every day?
This calculator does not claim it does. The weekly total sets the expected change in weight; cycling is a way to arrange the budget, and people choose it for how it fits their week.
How many high days should I have?
One to three a week is offered here. Pick the number that fits your week; with more high days the same gap needs a smaller drop on the other days.
Can the low days get too low?
The calculator keeps every day at or above 1,200 kcal for women and 1,500 kcal for men, and shortens the gap if it would not.