Intermittent Fasting Window & Schedule Calculator (16/8, 18/6, OMAD)
Calculate your fasting and eating window schedules for 16/8, 18/6, 20/4 Warrior, and OMAD (23/1) protocols, and track metabolic ketosis and autophagy onset stages.
Calculator Inputs
Live Real-TimeFast Break / First Meal Time (24h Clock)
Daily Fasting Hours
16 hrs
Allowed Eating Window Duration
8 hrs
Active Ketosis Fat-Burn Hours
4 hrs
Autophagy Cellular Repair Hours
2 hrs
Cellular Regeneration: A 16+ hour fast unlocks sustained ketosis and triggers health-optimizing autophagy.
24-Hour Fasting Cycle Breakdown
Detailed Calculation Breakdown
Calculation Methodology
Fasting Window = Configured Fasting Duration (16-23 hrs). Eating Window = 24 - Fasting Hours. End of Fast = (Fast Start Hour + Fasting Hours) modulo 24.
Important Legal & Educational Disclaimer
This metabolic scheduling tool assists in planning intermittent fasting routines.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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