Creatine Dosage Calculator
Find your optimal creatine monohydrate dose — backed by ISSN research. Loading phase, maintenance dose, and monthly supply estimates based on your body weight.
Calculate Your Creatine Dose
How Much Creatine Should You Take?
Creatine monohydrate is the most researched ergogenic supplement in history, with over 500 peer-reviewed studies confirming its safety and effectiveness. It increases phosphocreatine stores in muscle, allowing faster regeneration of ATP during high-intensity exercise — translating to more reps, more power, and faster recovery between sets.
Medical Disclaimer: This tool provides general educational estimates. Always consult your prescribing physician or healthcare provider before making medication changes or interpreting results from population-based models.
Contents
Loading Phase vs. Maintenance Only
There are two evidence-based approaches to creatine supplementation. Both reach the same endpoint — fully saturated muscle creatine stores — but differ in how fast you get there.
| Protocol | Dose | Duration | Time to Saturation |
|---|---|---|---|
| Loading + Maintenance | ~20 g/day (4 × 5g), then 3-5 g/day | 5-7 days loading, then ongoing | 5-7 days |
| Maintenance Only | 3-5 g/day | Ongoing | 3-4 weeks |
When to Use Loading
- Competition prep: If you need saturated stores within a week (e.g., before a powerlifting meet or athletic event)
- Starting a new training block: Faster saturation means earlier performance benefits
- Note: Loading can cause temporary water retention (1-2 kg) and GI discomfort in some people. Splitting into 4 doses per day minimizes stomach issues.
Creatine Dosing by Training Goal
Strength / Power / Muscle Building
- Recommended: 5 g/day or 0.04 g/kg/day (whichever is higher)
- Why: Creatine's primary benefit is in short-duration, high-intensity activities (sprints, heavy lifts, explosive movements). Higher body mass athletes may need slightly more to fully saturate larger muscle volumes.
- Evidence: A meta-analysis by Lanhers et al. (2017) found creatine increased maximum strength by 8% and reps-to-failure by 14% compared to placebo.
Endurance / Cardio
- Recommended: 3 g/day or 0.03 g/kg/day
- Why: Endurance exercise relies primarily on oxidative metabolism, not the phosphocreatine system. Creatine still benefits interval training within endurance sports and aids recovery, but high doses offer diminishing returns.
- Evidence: Benefits are modest for steady-state endurance but meaningful for repeated sprint ability within endurance sports (e.g., cycling sprints, soccer).
General Health / Cognitive
- Recommended: 3-5 g/day
- Why: Emerging research suggests creatine supports brain health — the brain uses ~20% of the body's ATP. Studies show benefits for cognitive performance under stress, sleep deprivation, and aging.
- Evidence: Avgerinos et al. (2018) found creatine supplementation improved short-term memory and reasoning in healthy individuals.
When to Take Creatine
Timing is less important than consistency. Creatine works through chronic saturation of muscle stores, not acute effects like caffeine.
Key Timing Findings
- Post-workout may be slightly better: Antonio & Ciccone (2013) found a small advantage for post-workout creatine vs. pre-workout, likely due to increased blood flow and nutrient uptake.
- With carbs or protein: Taking creatine with a meal containing carbohydrates or protein may enhance uptake through insulin-mediated transport. However, the effect is small.
- Consistency matters most: Daily supplementation is the key factor. Missing a day occasionally is fine — it takes ~4-6 weeks of no supplementation for stores to return to baseline.
- With water: Always take creatine with adequate water (~250-500 mL per dose). Creatine pulls water into muscle cells, increasing your hydration needs.
Safety & Side Effects
Creatine monohydrate has an excellent safety profile. The ISSN (2017) concluded that creatine is one of the most well-studied and safest supplements available.
Common Concerns Addressed
- Kidney safety: Creatine does NOT damage healthy kidneys. Multiple long-term studies (up to 5 years) show no adverse effects on kidney function in healthy individuals. People with pre-existing kidney disease should consult their doctor.
- Water retention: Creatine increases intracellular water (inside muscle cells), typically 1-2 kg during loading. This is not bloating — it is water stored within muscle tissue.
- GI discomfort: Large single doses (>10g) can cause stomach cramping or diarrhea. Splitting loading doses into 4 servings and taking with food prevents this.
- Hair loss: One 2009 study (Vellinga et al.) on rugby players found increased DHT levels. However, no follow-up studies have replicated this finding, and no study has directly measured hair loss from creatine. The link remains unproven.
- Creatine type: Creatine monohydrate is the gold standard. Other forms (HCl, ethyl ester, buffered) have no proven superiority and are more expensive.
Frequently Asked Questions
How much creatine should I take per day?
The ISSN recommends 3-5 grams of creatine monohydrate per day for maintenance, or approximately 0.03 g/kg of body weight. For a 70 kg (154 lb) person, this means about 3-5 grams daily. An optional loading phase of 0.3 g/kg/day (~20 g/day split into 4 doses) for 5-7 days saturates stores faster but is not required.
Do I need a loading phase?
No. Loading is optional. Taking 3-5 g/day without loading will fully saturate your muscle creatine stores within 3-4 weeks — the same end result as loading. Loading simply gets you there in 5-7 days instead. Use loading if you want results faster (e.g., competition prep) or skip it for simplicity and to avoid potential GI discomfort.
Should I cycle creatine?
No. There is no scientific evidence supporting creatine cycling. The ISSN position stand states that long-term creatine supplementation (up to 5 years studied) is safe and effective. Your body does not build a tolerance to creatine — it works through maintaining saturated muscle stores, not through a dose-response curve that diminishes over time.
How many teaspoons of creatine is 5 grams?
One level teaspoon of creatine monohydrate powder is approximately 5 grams. So a standard 5g maintenance dose is about 1 level teaspoon. For a 3g dose, use about ⅔ of a teaspoon. A kitchen scale is most accurate, but a level teaspoon is a reliable approximation for creatine monohydrate specifically.
Does creatine cause kidney damage?
No — in healthy individuals, creatine does not damage kidneys. This myth persists because creatine supplementation raises creatinine levels (a kidney function marker), which can be confused with kidney dysfunction on blood tests. Multiple studies lasting up to 5 years show no adverse effects on kidney function. However, individuals with pre-existing kidney disease should consult their physician before supplementing.
Does creatine cause hair loss?
The evidence is insufficient to conclude that creatine causes hair loss. A single 2009 study on rugby players found elevated DHT levels after 3 weeks of creatine loading, but no study has directly measured hair loss or follicle changes from creatine supplementation. Multiple subsequent studies have failed to replicate the DHT finding. The ISSN does not list hair loss as a side effect of creatine.
Sources & Methodology
- Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18.
- Lanhers C, Pereira B, Naughton G, et al. Creatine Supplementation and Upper Limb Strength Performance: A Systematic Review and Meta-Analysis. Sports Med. 2017;47(1):163-173.
- Avgerinos KI, Spyrou N, Bougioukas KI, et al. Effects of creatine supplementation on cognitive function of healthy individuals: A systematic review of randomized controlled trials. Exp Gerontol. 2018;108:166-173.
- Antonio J, Ciccone V. The effects of pre versus post workout supplementation of creatine monohydrate on body composition and strength. J Int Soc Sports Nutr. 2013;10:36.
This calculator uses peer-reviewed formulas and clinical guidelines. Results are estimates and should not replace professional medical advice.