Zigzag Calorie Calculator
Plan a zig-zag calorie cycling week: high and low days that average to your target. Free calorie cycling calculator, private and in-browser.
Independently verified for accuracy
Calculator by Toolsloft ↗- Daily target
- 2,759 kcal
- High day (+20%)
- 3,310.8 kcal
- Low day (-20%)
- 2,207.2 kcal
- Weekly total
- 19,313 kcal
- Monday3,310.8 kcal
- Tuesday2,207.2 kcal
- Wednesday3,310.8 kcal
- Thursday2,207.2 kcal
- Friday3,310.8 kcal
- Saturday2,207.2 kcal
- Sunday2,759 kcal
Plan a zig-zag (calorie cycling) week: higher-calorie days paired with lower-calorie days that still average out to your daily target. Some people find alternating intake easier to stick to than the exact same calories every day. Estimates only, not medical or nutrition advice.
How this is calculated
Maintenance calories (TDEE) come from the Mifflin-St Jeor BMR times an activity factor, then a goal factor adjusts it: losing is a 20% deficit and gaining a 10% surplus. The week is built as three high days at +20%, three low days at -20%, and one day at the plain target. That pattern averages exactly to the target, so the weekly total equals the target times seven.
How to use
- Enter your sex, weight, height, and age.
- Choose your activity level and goal (lose, maintain, or gain).
- Read your high-day, low-day, and base-day calories, plus the weekly total.
Examples
- Male, 80 kg, moderate, maintain:
High 3,311 / Low 2,207 / Base 2,759 kcal - Female, 65 kg, light, losing:
High 1,822 / Low 1,215 kcal, weekly 10,628
FAQ
- What is zig-zag calorie cycling?
- It means varying calories across the week instead of eating the same amount daily. High days and low days are balanced so the weekly average still matches your goal. The idea is more flexibility, for example a bigger day on a hard training day or a social meal.
- How are the high and low days set?
- This tool uses three high days at 20% above target, three low days at 20% below, and one day right at target. That combination averages exactly to your daily target over seven days.
- Does zig-zagging burn more fat than a flat diet?
- Evidence is mixed. Over a week the total calories are what mostly drive results, and that total is the same as an even split. The main benefit is adherence, so use it if alternating days helps you stay consistent.