Creatine Loading Calculator
Calculate creatine monohydrate loading and maintenance doses by body weight, and compare how quickly loading versus straight maintenance saturates muscle stores.
💪 Exercise Science📐 Loading ≈ 0.3 g/kg/day for 5–7 days; maintenance ≈ 0.03 g/kg/day🏥 Health
Units
Body weight
Loading duration (days)
Protocol
Please enter valid values.
Formula & Reference
| Variable | Symbol | Formula | Units |
|---|---|---|---|
| Creatine Loading Calculator | — | Loading ≈ 0.3 g/kg/day for 5–7 days; maintenance ≈ 0.03 g/kg/day | grams per day |
Step-by-Step Examples
Example 1
Loading Protocol, 80 kg
80 kg, 5-day loading.
- Loading = 80 × 0.3 = 24 g/day
- Split into 4 doses of 6 g
- Loading total = 120 g over 5 days
- Maintenance thereafter = 80 × 0.03 = 2.4 g, rounded up to 3 g
✓ 24 g/day loading, then 3 g/day
Example 2
Maintenance Only, 65 kg
65 kg, no loading phase.
- Maintenance = 65 × 0.03 = 1.95 g/day
- Rounded up to the 3 g practical minimum
- Saturation reached in about 3–4 weeks
✓ 3 g/day, saturation in 3–4 weeks
Example 3
Larger Athlete, 100 kg
100 kg, 7-day loading.
- Loading = 100 × 0.3 = 30 g/day
- Split into 4 doses of 7.5 g
- Loading total = 210 g over 7 days
- Maintenance = 3 g/day
✓ 30 g/day loading, then 3 g/day
Real-World Applications
Strength and Power
Creatine monohydrate is among the most extensively studied supplements, with consistent evidence for improved high-intensity performance and training adaptation.
Cost Efficiency
Monohydrate is inexpensive and performs as well as more costly forms in comparative studies.
Cognitive Research
Emerging research is examining creatine's effects on cognition, particularly under sleep deprivation and in vegetarians, though evidence remains preliminary.
Older Adults
Combined with resistance training, creatine has shown benefit for muscle mass and strength in older populations.
Common Mistakes to Avoid
⚠️
Assuming loading is necessary
Loading only reaches saturation faster. Taking maintenance doses from the start reaches the same end point in three to four weeks, with fewer gastrointestinal effects.
⚠️
Paying more for alternative forms
Creatine hydrochloride, ethyl ester, and buffered forms have not been shown to outperform monohydrate, which remains the best-supported and cheapest option.
⚠️
Interpreting early weight gain as fat
The initial one to two kilogram gain is intracellular water in muscle, not adipose tissue. It reflects the mechanism working, not fat accumulation.
Frequently Asked Questions
How much creatine should I take? ▾
A common protocol is about 0.3 g per kg body weight daily for five to seven days as a loading phase, then roughly 0.03 g per kg, with 3 to 5 g being typical maintenance.
Do I need a loading phase? ▾
No. Loading saturates muscle stores in about a week rather than three to four, but the final saturation level is the same either way.
Does creatine cause kidney damage? ▾
In people with normal kidney function, studies have not found harm at standard doses. Anyone with existing kidney disease should discuss it with a clinician first.
Why do I gain weight on creatine? ▾
Creatine draws water into muscle cells, typically producing one to two kilograms of intracellular water gain in the first weeks. This is not fat.
Should I cycle creatine? ▾
There is no evidence that cycling is necessary. Continuous use at maintenance doses maintains saturation, and the body does not downregulate in a way that requires breaks.