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Intermittent Fasting Calculator
Free tool to plan your fasting schedule and eating windows with personalized nutrition targets
- Community votes
- 0
- DR by Ahrefs
- 16 +1 (up) since last check
Ahrefs Domain Rating benchmarked 8 Nov 2026, rebuilt 27 Oct 2026.
What it is
Intermittent Fasting Calculator is a free online tool that helps you plan fasting schedules by calculating your eating and fasting windows based on your preferred protocol. It supports popular methods like 16:8, 14:10, 18:6, 20:4, and OMAD, as well as custom fasting hours.
Beyond timing, the tool provides personalized nutritional guidance. By entering your details (gender, age, height, weight, activity level, and goal), you unlock daily calorie targets calculated using the Mifflin-St Jeor equation, protein recommendations based on ISSN standards, and metabolic milestones that track when your body shifts into fat-burning and cellular repair phases.
The site also offers educational content about fasting methods, safety considerations, and answers to common questions. It emphasizes treating calculator outputs as estimates for planning, not guarantees, and recommends consulting healthcare providers before starting if you have medical conditions or take medications.
What it is built with
- Multiple fasting protocols including 16:8, 14:10, 18:6, 20:4, and OMAD
- Custom fasting hours option
- Personalized daily calorie goals using Mifflin-St Jeor equation
- Daily protein targets based on ISSN standards
- Metabolic milestones tracking ketone switch and autophagy
- Visual timeline of fasting schedule
- Export schedule as image or text
- No signup required
- Related tools including Intermittent Fasting Timer and Template
Pricing
Pricing model: Free
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Intermittent Fasting Calculator metrics
| Metric | Value |
|---|---|
| Domain Rating | 16 +1 (up) since last check |
| Trust Flow | 20 no change since last check |
| Citation Flow | 23 no change since last check |
| Referring domains | 83 no change since last check |
| External backlinks | 303 no change since last check |
Ahrefs Domain Rating benchmarked 8 Nov 2026, rebuilt 27 Oct 2026. Main build topic: Arts/Performing Arts (19). Majestic benchmarked 19 Oct 2026, rebuilt 19 Oct 2026. Link data built by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Intermittent Fasting Calculator domain build sheet
Open the build sheet
| Domain age | 1 year |
|---|---|
| Registered | |
| Expires | |
| Registrar | NameCheap, Inc. |
| DNSSEC | Not signed |
Intermittent Fasting Calculator after-launch build log
Since Intermittent Fasting Calculator launched on Maker Launches on 19 October 2026, these are the figures we have tracked.
- Domain Rating (Ahrefs)
- 16 +1 (up) since launch
- 15 at launch (19 Oct 2026), 16 on 8 Nov 2026
- Trust Flow (Majestic)
- 20
- First measured 19 Oct 2026
- Referring domains (Majestic)
- 83
- First measured 19 Oct 2026
Day 21 since launch. Next receipt: day 30, 18 Nov 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
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Questions from the bench
- Does coffee break a fast?
- Black coffee with under 3 calories will not end your fast. You should skip creams and sweeteners as they trigger metabolic responses.
- What's the best fasting schedule for beginners?
- The 16:8 method (16-hour fast, 8-hour eating window) is often recommended for beginners because it is relatively easy to follow, provides good results, and allows for daily nutrition.
- Is intermittent fasting safe?
- For most healthy people, yes. However, if you have medical conditions, are pregnant, breastfeeding, or have a history of eating disorders, you should consult your healthcare provider before starting any fasting regimen.
- Can I drink water during fasting?
- Yes, drinking water is essential during fasting periods. It helps maintain hydration, supports bodily functions, and can help manage hunger feelings.
- How long does it take to see results?
- Results vary, but many people notice changes within 2-4 weeks. Consistency is key and you should track your progress and adjust your plan as needed.
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Intermittent Fasting Calculator has a free listing. The owner can unlock the full profile with a paid launch for $5:
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- Demo video (locked)
- Dofollow website link (locked)
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