Creatine Dosage Calculator — Loading & Maintenance Grams

Find your personalized creatine monohydrate dose — optional loading phase and daily maintenance — based on your body weight. ⚕️ Evidence-based

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Creatine Dosage

Loading & maintenance

⚕️ General guidance, not medical advice. Stay hydrated; check with a doctor if you have kidney issues.

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Enter your weight to find your dose

How the Creatine Calculator Works

  1. Enter your weight.
  2. Choose whether to load (faster results) or go steady.
  3. See your daily grams for each phase and when your muscles are fully saturated.

How Much Creatine Should You Take?

Creatine monohydrate is the most researched sports supplement, shown to improve strength, power and muscle mass. The standard maintenance dose is 3–5 g per day (about 0.03 g/kg). An optional loading phase — roughly 0.3 g/kg/day (around 20 g split into 4 doses) for 5–7 days — saturates your muscles faster; after that you drop to maintenance.

Loading isn't required: taking 3–5 g daily reaches the same saturation in about 3–4 weeks. Take it any time of day, with or without food, and stay well hydrated. Consistency matters more than timing. General guidance, not medical advice.

Formula & Logic

Creatine monohydrate is among the most studied sports supplements, and dosing is straightforward because it works by saturating muscle stores rather than by acute effect. Two protocols reach the same endpoint. A loading phase of roughly 0.3 g per kilogram daily, split across four doses for five to seven days, saturates stores quickly; simply taking the maintenance dose of about 0.03 g per kilogram reaches the same saturation in three to four weeks. Neither is superior at the destination — loading only arrives sooner, at the cost of more frequent gastrointestinal complaints.

Loading dose = body weight (kg) × 0.3 g/day, split into 4 doses, for 5–7 daysMaintenance dose = body weight (kg) × 0.03 g/dayCommon simplification: 20 g/day loading, 5 g/day maintenanceSaturation without loading: 3–4 weeks at maintenance

where:

loading
optional; reaches saturation in about a week
maintenance
the long-term dose, roughly 3–5 g for most adults
monohydrate
the form with by far the strongest evidence base and the lowest cost

Assumptions: General information, not medical advice. Creatine raises serum creatinine, a kidney marker, without indicating kidney damage — worth mentioning to a clinician before blood tests. Adequate fluid intake is advised.

Step-by-Step Example: Dosing for an 82 kg Adult

Compute both protocols and compare how quickly each saturates.

  • Body weight82 kg
  • GoalFull muscle saturation
  1. Loading dose: 82 × 0.3 = 24.6 g a day.
  2. Split across four doses: 24.6 ÷ 4 = 6.15 g each, for 5–7 days.
  3. Maintenance dose: 82 × 0.03 = 2.5 g a day thereafter.
  4. Total consumed in a loading week: 24.6 × 6 = 147.6 g.
  5. Without loading: 2.5 g a day reaches the same saturation in about 28 days.
  6. Total consumed over those 28 days: 70 g — less than half the loading route.

ResultLoad at 24.6 g/day for a week, then 2.5 g/day — or skip loading entirely

Skipping the loading phase uses less than half the creatine to reach an identical endpoint, three weeks later. The common 5 g maintenance recommendation is generous for an 82 kg adult; the weight-based 2.5 g is sufficient, and the surplus is simply excreted.

Creatine FAQ

No. Loading (≈20 g/day for a week) saturates muscles in about 5–7 days; skipping it and taking 3–5 g daily gets you to the same place in 3–4 weeks with less stomach upset.
Any time — timing has little effect. Daily consistency is what keeps your muscles saturated. With or without food is fine.
For healthy people, creatine monohydrate is well-studied and safe at these doses. Stay hydrated, and consult a doctor first if you have kidney disease.

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✔ Written & reviewed by Dr Sam — 20+ yrs in management & research leadership📅 Last updated June 2026📚 Sources: CDC & USDA / HHS Dietary Guidelines📑 How we build & check these⚖ General information only — not medical advice