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Creatine
Calculator

Calculate your ideal creatine dose by body weight. Get personalized loading and maintenance dosing for creatine monohydrate supplementation.

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Creatine dosing is the same for men and women — it is based on body weight.

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How the Creatine Calculator Works

Three simple steps to find your personalized creatine dose based on body weight and training goals.

Enter Your Weight

Input your body weight in pounds or kilograms. The creatine calculator uses your weight to determine the precise dose per kilogram of body mass.

Select Your Phase

Choose loading phase (first 5-7 days for rapid saturation) or maintenance phase (ongoing daily supplementation at a lower dose).

Get Your Plan

Receive your exact daily dose in grams, dosing schedule, monthly supply needs, and estimated cost for creatine monohydrate powder.

Creatine Dosing Guide by Body Weight

This creatine calculator for body weight uses research-backed formulas. Below is a quick-reference table showing typical creatine doses for common body weights during both the loading and maintenance phases.

Body WeightLoading DosePer Serving (4x)Maintenance Dose
120 lbs / 54 kg16.2g/day4.1g3g/day
140 lbs / 64 kg19.2g/day4.8g3g/day
160 lbs / 73 kg21.9g/day5.5g3g/day
180 lbs / 82 kg24.6g/day6.2g3g/day
200 lbs / 91 kg27.3g/day6.8g3g/day
220 lbs / 100 kg30g/day7.5g3g/day
250 lbs / 113 kg33.9g/day8.5g3.4g/day
300 lbs / 136 kg40.8g/day10.2g4.1g/day

Loading phase: 0.3g per kg of body weight per day, split into 4 servings. Maintenance phase: 0.03g per kg, minimum 3g/day. Use the creatine calculator per weight above for your exact personalized dose.

Loading Phase vs. Maintenance Phase

Understanding the two phases of creatine supplementation helps you get the most out of this proven performance enhancer.

Loading Phase

  • Duration: 5–7 days
  • Dose: 0.3g per kg body weight/day
  • Frequency: 4 doses per day with meals
  • Purpose: Rapidly saturate muscle creatine stores in ~1 week
  • Note: May cause temporary water retention and mild GI discomfort

Maintenance Phase

  • Duration: Ongoing (indefinite)
  • Dose: 3–5g per day (0.03g per kg)
  • Frequency: 1 dose per day
  • Purpose: Maintain elevated muscle creatine stores long-term
  • Note: Can skip the loading phase entirely and start here

Creatine Safety & Best Practices

Creatine monohydrate is one of the most researched and safest supplements in sports nutrition. Follow these evidence-based tips to maximize its benefits.

Stay Hydrated

Creatine draws water into muscle cells. Drink at least 8-12 glasses of water per day while supplementing to support hydration and kidney function.

Take with Carbs

Consuming creatine with carbohydrates or a meal increases insulin, which enhances creatine uptake into muscles by up to 60%.

Choose Monohydrate

Creatine monohydrate is the most studied form with the strongest evidence. Fancy formulations (HCL, ethyl ester) offer no proven advantage.

Be Consistent

Take creatine at the same time every day. Missing doses allows muscle creatine levels to slowly decline, reducing the supplement's benefits.

No Cycling Needed

Unlike some supplements, creatine does not require cycling on and off. Long-term daily use is safe and maintains optimal muscle stores.

Expect Weight Gain

Initial weight gain of 1-3 pounds is normal water retention, not fat. This intracellular water helps muscle performance and fullness.

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Frequently Asked Questions

Common questions about creatine dosing, loading phase, maintenance, and timing for bodybuilding and fitness.

For the maintenance phase, most people should take 3-5 grams of creatine monohydrate per day. The standard recommendation is 0.03g per kilogram of body weight. Athletes and highly active individuals typically benefit from 5g per day, while sedentary individuals can maintain muscle creatine stores with 3g per day. Our creatine calculator computes your exact dose based on your body weight and activity level.
The creatine loading phase involves taking 0.3g per kilogram of body weight per day (typically 20-25g total) split into 4 doses for 5-7 days. This rapidly saturates your muscle creatine stores. While loading is not strictly necessary, it allows you to experience the full benefits of creatine within one week instead of 3-4 weeks. If you skip the loading phase, simply take your maintenance dose daily and your muscles will fully saturate over time.
No, creatine dosing is based on body weight, not gender. Both men and women use the same formula: 0.3g per kg for loading and 0.03g per kg for maintenance. Since women typically weigh less than men, their absolute dose may be lower, but the per-kilogram calculation is identical. This creatine calculator for women and men produces personalized results based on your specific body weight.
Research shows that creatine timing is less important than consistency. During the maintenance phase, taking creatine at the same time each day is more important than whether you take it pre-workout or post-workout. Some studies suggest a slight advantage to taking creatine with a post-workout meal when insulin levels are elevated, which may enhance creatine uptake. During the loading phase, split your daily dose into 4 servings taken with meals throughout the day.
Creatine monohydrate is one of the most affordable supplements available. At a typical maintenance dose of 3-5g per day, expect to spend between $8 and $15 per month for unflavored creatine monohydrate powder. A standard 500g container costs $20-30 and lasts approximately 3-5 months. During a loading phase, your first month will cost slightly more due to the higher initial dosing.
For bodybuilding, the recommended creatine dose is 5g per day during the maintenance phase, which is the upper end of the standard range. Bodybuilders may benefit from a loading phase of 0.3g per kg of body weight for the first week to saturate muscle stores quickly before a training cycle. A 200-pound bodybuilder would take approximately 27g per day during loading (split into 4 doses) and 5g per day for maintenance. Use our creatine calculator for bodybuilding to get your exact personalized dose.
Yes, you should take creatine every day, including rest days. Creatine works by maintaining elevated phosphocreatine stores in your muscles over time, not by providing an immediate boost. Skipping days can cause your muscle creatine levels to gradually decline, reducing the supplement's effectiveness. Consistency is key for maintaining saturated creatine stores.
Creatine monohydrate is one of the most extensively studied supplements and is considered safe for healthy adults when taken at recommended doses. The International Society of Sports Nutrition has confirmed its safety and efficacy. Minor side effects may include temporary water retention (1-3 pounds) and occasional stomach discomfort if taken on an empty stomach. Drink adequate water throughout the day. Individuals with pre-existing kidney conditions should consult a healthcare provider before supplementing with creatine.

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