About this calculator
This creatine dose calculator estimates common creatine monohydrate loading and maintenance amounts from body weight. It is designed for sports nutrition planning, especially for athletes comparing a faster loading phase with a simpler daily maintenance approach.
The calculator does not tell you that you need creatine, diagnose a deficiency, or replace medical advice. People with kidney disease, medical conditions, pregnancy or breastfeeding, teen athletes, and anyone in drug-tested sport should use clinician or sports-dietitian guidance before starting supplements.
Uses published creatine monohydrate protocols: loading around 0.3 g/kg/day for 5–7 days, followed by maintenance around 0.03 g/kg/day or commonly 3–5 g/day. The result is for healthy adults unless a clinician advises otherwise.
Activated — educational sports nutrition estimate
Educational estimate; not a diagnosis or treatment plan.
Formula and method
Loading estimate: creatine monohydrate 0.3 g/kg/day for 5–7 days, usually divided into multiple servings. Maintenance estimate: either the common 3–5 g/day range or a transparent weight-based estimate of 0.03 g/kg/day. A no-loading approach commonly uses 3–5 g/day for several weeks to increase muscle creatine more gradually.
Frequently asked questions
How much creatine should I take by body weight?+
A common loading method uses about 0.3 g/kg/day for 5–7 days, followed by maintenance. Maintenance is often 3–5 g/day, while some reviews describe 0.03 g/kg/day as a weight-based maintenance estimate.
Do I have to load creatine?+
No. Loading can saturate muscle creatine faster, but daily maintenance dosing without loading is commonly used and may be easier on the stomach. It may simply take longer to reach similar stores.
Should I split creatine doses?+
During loading, splitting the daily amount into several servings is practical and may reduce stomach discomfort. Maintenance dosing is commonly taken once daily, but consistency matters more than exact timing for most people.
Is creatine safe for kidney disease?+
People with kidney disease, reduced kidney function, or medications that affect kidney function should not rely on a self-directed calculator. They should ask their healthcare team before using creatine.
What type of creatine does this calculator assume?+
The calculation assumes creatine monohydrate, which is the form most often used in sports nutrition research. Other forms may have different serving sizes and less evidence.