How to Use This Calculator
Enter body weight in kg or lbs and pick a phase. For loading, choose 5, 6 or 7 days. Click Calculate to see the daily amount, the amount per serving and, for loading, the date to switch to maintenance. Maintenance scales with body weight but stays between 3 and 5 g a day.
Loading Phase vs. Skipping It
A loading phase saturates muscle creatine stores faster, usually within about a week, compared to 3-4 weeks of just taking a maintenance dose from day one. The end result is the same either way, loading just gets you there sooner. If gut comfort is a concern, splitting the loading dose across 4 smaller servings through the day (rather than one large serving) is the standard way to reduce bloating.
Loading Phase Totals for the 80 kg Example
The table follows the 80 kg example from this page: 24 g per day, taken as 4 servings of 6 g. It shows how the total grows with the number of loading days, and what share of a 500 g tub the phase uses. Change the weight and days in the calculator above to see your own numbers.
| Loading days | Grams per day | Total grams | Share of a 500 g tub |
|---|---|---|---|
| 5 days | 24 g | 120 g | 24% |
| 6 days | 24 g | 144 g | 28.8% |
| 7 days | 24 g | 168 g | 33.6% |
The total is the daily grams multiplied by the days, and the tub share is the total divided by 500. Once the loading phase ends, the calculator switches to the maintenance amount for the rest of the cycle.
Where This Fits in a Broader Research Protocol
Creatine is often tracked alongside body composition changes during a research cycle. The Body Fat Percentage Calculator gives a consistent way to track lean mass and fat changes over the same period, and the Protein Intake Calculator covers the other major variable in body-recomposition tracking, daily protein target relative to body weight.
Who Should Use This
Sports researchers; athletes and strength trainers using creatine supplementation protocols.
What This Calculator Does
The Creatine Loading Calculator gives daily creatine amounts for a loading phase (typically 5-7 days) and a maintenance phase, scaled to body weight.
Formula Used
Example Calculation
Limitations
These are reference ranges derived from published research. Individual tolerance and response to creatine varies. Split loading into 4-6 doses per day to minimise GI discomfort.
Frequently Asked Questions
What is creatine loading and do I need to do it?
Creatine loading means taking about 0.3 g per kg of body weight per day (around 20 to 25 g for most adults, split into 4 doses) for 5-7 days to saturate muscle creatine stores quickly. Loading is optional. A daily maintenance dose of 3-5 g achieves the same saturation level in approximately 3-4 weeks without the GI discomfort some people experience at loading doses.
How much creatine should I take daily for maintenance?
The standard maintenance dose is 3-5 g of creatine monohydrate per day. Larger individuals (over 90 kg / 200 lbs) may benefit from the higher end of this range. The Creatine Loading Calculator uses body weight to generate a personalized loading and maintenance recommendation.
What is the best form of creatine to take?
Creatine monohydrate is the most extensively researched, effective, and affordable form. It consistently outperforms or matches all other forms (ethyl ester, buffered creatine, HCl) in peer-reviewed studies. Micronized creatine monohydrate dissolves more easily but offers no additional efficacy benefit.
Do I need to cycle on and off creatine?
No. Current evidence does not support the need to cycle creatine. Long-term studies of up to 5 years show no adverse effects on kidney or liver function in healthy individuals. Continuous use is safe and maintains consistently elevated muscle creatine stores for sustained performance benefits.
How do I calculate a creatine loading phase from body weight?
Convert your weight to kg (divide lbs by 2.205), then multiply by 0.3 to get the grams per day for the loading phase. Divide that by 4 to get the grams in each serving. For example, 80 kg x 0.3 = 24 g per day, or 4 servings of 6 g. The calculator does these steps for you when you enter your weight and the number of loading days. This is arithmetic only, not a recommendation.
How many grams of creatine does a loading phase use in total?
Multiply the daily grams by the number of loading days. For example, 24 g per day for 5 days is 120 g, and for 7 days it is 168 g. Divide the total by the size of your tub to see how much of it the phase uses: 120 / 500 is 24% of a 500 g tub. After the loading days, the calculator moves to the maintenance amount, so the maintenance grams are counted separately.