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Kalkulačka cyklizácie kalórií

Calorie Cycling Calculator (5:2)

Your TDEE (kcal/day)

From TDEE calculator

Weekly deficit goal

What is Calorie Cycling Calculator?

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Calorie cycling (also called calorie shifting) involves alternating between higher- and lower-calorie days while maintaining the same weekly calorie deficit. The 5:2 approach uses 5 lower-calorie days and 2 maintenance days. Proponents claim it reduces metabolic adaptation to dieting and can improve adherence by providing psychological relief on higher-calorie days.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

Vzorec

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f(x)Set a weekly calorie deficit target (e.g. 3,500 kcal/week = 0.5 kg/week loss)

How to Calorie Cycling Calculator

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1Set a weekly calorie deficit target (e.g. 3,500 kcal/week = 0.5 kg/week loss)
2Low days: 200–400 kcal below daily average
3High days: at maintenance (TDEE) — psychological benefit
4Weekly average equals same deficit as straight dieting

Worked Examples

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Example 1

Given:TDEE 2,500 kcal — 5:2 cycle, −500 deficit

Výsledok:Low days: 2,100 kcal × 5; High days: 2,500 kcal × 2 = weekly avg 2,186 kcal

Example 2

Given:TDEE 2,000 kcal — 5:2 cycle, −250 deficit

Výsledok:Low days: 1,550 kcal; High days: 2,000 kcal; est. loss ~175g/week

Real-World Applications

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Tracking personal health and fitness goals

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Guidance for healthcare conversations with your doctor

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Monitoring progress during a weight management programme

Calorie Cycling vs Straight Deficit Comparison

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Approach	Pros	Cons
Straight deficit (daily)	Simple, consistent	Psychological fatigue, possible metabolic adaptation
5:2 cycling	Rest days reduce diet fatigue	Requires planning, higher days can derail progress
Alternate-day fasting	Strong evidence base	Difficult to sustain socially

Frequently Asked Questions

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What is Calorie Cycling?

How accurate is the Calorie Cycling calculator?

The calculator uses the standard published formula for calorie cycling. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Calorie Cycling calculator use?

This calculator works with kilograms, inches, watts. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Calorie Cycling calculator use?

The core formula is: Set a weekly calorie deficit target (e.g. 3,500 kcal/week = 0.5 kg/week loss). Each step in the calculation is shown so you can verify the result manually.

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Pro Tip

The metabolic advantage of calorie cycling over straight dieting is debated in research. The main benefit is psychological — having planned higher-calorie days may improve long-term diet adherence.

References

Len na informačné účely. Tento nástroj nenahrádza odborné lekárske poradenstvo, diagnózu ani liečbu. Vždy sa poraďte s kvalifikovaným zdravotníckym odborníkom.

Deep Dive

Read the full guide on how to use this calculator effectively

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Formula-verified for precision

Reviewed October 2026

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