Creatine Dosage Calculator: How Much Creatine Per Day?
Enter your body weight to get a daily maintenance dose of creatine monohydrate and an optional loading dose if you want your muscles topped up faster.
Your results
Estimates for healthy adults, for education only. Not a medical assessment. Built and reviewed by Umair Hazrami.
How this calculator works
It takes one input, your body weight, and gives you two numbers.
1. Daily maintenance dose. Body weight in kg × 0.03 g, rounded to one decimal, with a floor of 3 g and a ceiling of 10 g. In practice the floor does most of the work: anyone under 100 kg gets 3 g a day. A 120 kg lifter gets 3.6 g.
2. Optional loading dose. Body weight in kg × 0.3 g per day, rounded to the nearest gram, for 5-7 days, split into four servings. A 70 kg person would load at 21 g a day.
Why those numbers? They track the classic research. In a study of 31 men, 20 g a day for 6 days raised muscle creatine by about 20%, and 2 g a day was enough to hold it there for another 30 days. Taking 3 g a day from the start produced a similar 20% rise, just over 28 days instead of 6 (Hultman et al., 1996). Same destination. Different speed.
Using your result
Pick one route and stick to it:
- No rush: take the maintenance dose every day. Full stores in about a month.
- Want it sooner: take the loading dose for 5-7 days, split across meals, then drop to maintenance.
One thing to watch: because loading scales with body weight, heavier users get big numbers (a 110 kg lifter would be told 33 g a day). That is a lot of powder for some stomachs. If it upsets yours, cut the loading phase short or skip it. You lose nothing but time. More on the trade-off in creatine loading vs daily maintenance.
Plain creatine monohydrate is the form with the research behind it. Daily consistency matters far more than timing around your workout.
What to expect
By raising muscle creatine, it can improve high-intensity performance, which over months of training may mean a little more quality work on hard sets. A 2024 meta-analysis of 12 studies in adults under 50 found that creatine plus resistance training added about 1.1 kg of lean mass and trimmed body fat by just under 0.9 percentage points compared with training alone (Desai et al., 2024). Useful, but modest. Creatine does not replace a good program or enough protein, so set your intake with the protein calculator too.
Expect the scale to creep up early. Most of that is water inside the muscle, not fat.
Limitations and who should check with a doctor first
This is a dosing guide, not medical advice. The ISSN position stand describes creatine as safe and well tolerated in healthy people at up to 30 g a day for 5 years (Kreider et al., 2017), but that evidence covers healthy users. Talk to a doctor before starting if you:
- have kidney or liver disease, diabetes, or high blood pressure
- are pregnant or breastfeeding
- are under 18
- take medication that affects kidney function
Tell your doctor you take creatine before any blood test, since it can raise creatinine and make kidney results look worse than they are. For the full myth check, read creatine, hair loss and kidney health.
Frequently Asked Questions
How much creatine should I take per day?
For most adults, 3-5 g of creatine monohydrate a day is enough. A 1996 study found that 3 g a day raised muscle creatine by about 20% over 28 days, the same rise a 20 g a day loading phase produced in 6 days. This calculator gives 3 g to anyone under 100 kg and scales up slightly above that.
Do I need a loading phase?
No, loading only gets you to full stores sooner. Skipping it means waiting roughly four weeks instead of one, and the end point looks the same. Load if you want faster results and your stomach handles it; skip it if larger doses cause bloating or loose stools.
When is the best time to take creatine?
Whenever you will remember it every day. Creatine works by building up stores over weeks, so a missed timing window matters far less than missed days. Most people find it easiest to stir it into a post-workout shake or breakfast.
Is creatine bad for your kidneys?
In healthy people, the research so far does not show harm: the ISSN position stand reports doses up to 30 g a day for up to 5 years were safe and well tolerated. Creatine can raise creatinine, the blood marker labs use to estimate kidney function, which can make a routine test look worse than it is. If you have kidney disease, diabetes, high blood pressure or take medication that affects the kidneys, speak to your doctor before starting.
Will creatine make me look bloated?
Your scale weight may tick up in the first weeks, mostly from extra water stored inside the muscle. That is a sign it is working, not fat gain. Loading doses are more likely to cause stomach discomfort than the steady 3-5 g approach.
What happens if I stop taking creatine?
Your muscle creatine slowly drifts back to its normal level. In one study, stores returned to baseline about 30 days after people stopped supplementing. You simply lose the extra boost the supplement was giving you.
Is creatine useful for vegetarians?
Probably, yes. Food creatine comes mostly from meat and fish, so lacto-vegetarian and vegan diets, common across India, supply very little of it. The dose from this calculator stays the same; creatine monohydrate powder is made synthetically and contains no animal products.
Sources & References
Every claim above is checked against peer-reviewed research (PubMed, U.S. National Library of Medicine) or guidance from established health bodies. How we fact-check.
- Hultman E, et al. Muscle creatine loading in men. J Appl Physiol. 1996. PMID: 8828669
- Kreider RB, 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. PMID: 28615996
- Desai I, et al. The Effect of Creatine Supplementation on Resistance Training-Based Changes to Body Composition: A Systematic Review and Meta-analysis. J Strength Cond Res. 2024. PMID: 39074168