Kratom Dosage Calculator

Kratom (Mitragyna speciosa) contains over 40 alkaloids, primarily mitragynine and 7-hydroxymitragynine, which interact with opioid and adrenergic receptors in a dose-dependent manner. At low doses (1-3g), kratom acts as a stimulant; at higher doses (5-8g), it produces sedating and calming effects. The ideal dosage depends on the strain color (red, green, white, or yellow), your body weight, tolerance level, and desired outcome. This calculator provides personalized dosage guidance based on these variables, drawing on ethnobotanical data and community-reported experiences from over 25 years of Azarius product expertise.

Find your ideal kratom dose by strain color (red, green, white, yellow), body weight, desired effect (stimulating to sedating), and consumption method. Covers toss & wash, tea, capsules, and food.

Quick Reference — ~75 kg, beginner to regular

Green

1–5g

White

1–5g

Red

1.5–6g

Yellow

1–5g

Varies by strain, body weight, and experience level. Use the calculator below for personalized recommendations.

Kratom Dosage Reference Table

Approximate doses in grams for a 70kg person with no tolerance, using toss-and-wash method. Individual responses vary. Always start at the lower end of the range.

Strain	Beginner (0-10 uses)	Occasional (monthly)	Regular (weekly+)
Green	1–2g	2–3.5g	3–5g
White	1–2g	2–3g	3–5g
Red	1.5–2.5g	2.5–4g	4–6g
Yellow	1–2g	2–3.5g	3–5g

About Kratom

Kratom (Mitragyna speciosa) is a tropical evergreen tree from Southeast Asia, related to the coffee plant. Its leaves have been used for centuries in Thailand, Malaysia, and Indonesia as a traditional medicine and stimulant. The primary active compounds are mitragynine (making up 60-66% of alkaloid content) and 7-hydroxymitragynine (a more potent but less abundant alkaloid). At low doses, kratom acts primarily on adrenergic receptors, producing stimulant effects. At higher doses, it engages opioid receptors (primarily mu and delta), producing calming and sedating effects. This dose-dependent duality is unique among botanical substances.

Understanding Strain Differences

Kratom strains are categorized by vein color (red, green, white, yellow) and region of origin (Bali, Maeng Da, Borneo, Thai, etc.). The vein color reflects the leaf's maturity at harvest and its alkaloid profile. Red vein leaves are harvested at full maturity and typically contain higher levels of 7-hydroxymitragynine, contributing to their sedating character. White vein leaves are harvested earlier and tend to have higher mitragynine ratios, producing more stimulating effects. Green vein represents a middle harvest point with a balanced alkaloid profile. Yellow vein is typically produced through a specific drying or fermentation process that alters the alkaloid composition.

Factors That Affect Your Dose

Several variables influence how kratom affects you. Body weight plays a moderate role — heavier individuals generally require slightly higher doses. Stomach contents significantly impact onset and intensity: an empty stomach means faster, stronger effects but higher nausea risk. Tolerance develops quickly with regular use and is the single biggest factor for experienced users. The consumption method matters: toss-and-wash and tea provide fastest absorption, while capsules delay onset by 15-20 minutes. Batch-to-batch potency variation is also significant — the same strain from different harvests can vary in alkaloid content by 20-40%.

Safety Guidelines

Never combine kratom with opioids, benzodiazepines, alcohol, or MAOIs — these combinations carry serious risks including respiratory depression and serotonin syndrome. Limit use to 3-4 days per week to prevent physical dependence. Use a digital scale — never estimate doses by volume. Stay hydrated, as kratom has mild diuretic properties. If you experience nausea, dizziness, or the 'wobbles' (rapid involuntary eye movements), you have taken too much — rest, hydrate, and reduce your next dose. Seek emergency medical help if you experience difficulty breathing, chest pain, or seizures.

Frequently Asked Questions

How much kratom should a beginner take?

A beginner should start with 1-2 grams of kratom powder and wait 45 minutes to assess effects before considering an additional 0.5g. Most beginners find their effective dose between 1.5-3g. Starting too high often causes nausea, which discourages further use.

What's the difference between red, green, and white kratom?

The vein color refers to the leaf's maturity at harvest. Red vein kratom is the most sedating and calming, best for relaxation. Green vein offers a balanced mix of stimulation and relaxation. White vein is the most stimulating and energizing, comparable to a nootropic. Yellow vein is typically a dried or fermented blend with milder, smoother effects.

How long does kratom take to kick in?

On an empty stomach, kratom typically takes 15-30 minutes to onset with the toss-and-wash method or tea. Capsules take 30-45 minutes due to dissolution time. Effects peak at 1-2 hours and last 3-6 hours depending on dose and strain.

Can you build tolerance to kratom?

Yes, tolerance develops relatively quickly with daily use. Most regular users notice diminished effects within 1-2 weeks of daily use. To manage tolerance, rotate between different strains, limit use to 3-4 days per week, and take regular breaks of at least 2 consecutive days.

What's the safest way to take kratom?

The safest approach is to start with a low dose (1-2g), use no more than 3-4 days per week, and avoid combining with other substances — especially opioids, alcohol, or benzodiazepines. Use a digital scale for accurate measurement. Never eyeball doses with a spoon, as powder density varies between batches.

How does body weight affect kratom dosage?

Body weight has a moderate influence on kratom dosage. Heavier individuals (90kg+) may need 0.5-1g more than lighter individuals (55kg or less) for equivalent effects. However, individual metabolism and sensitivity play a larger role than weight alone. Always start at the lower end regardless of body weight.

Should I take kratom on an empty stomach?

Kratom is most effective on an empty stomach, with faster onset and stronger effects. However, this also increases the chance of nausea, especially at higher doses. If you experience nausea, try eating a light snack 30 minutes before your dose. Many users find a small meal reduces nausea without significantly diminishing effects.

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This calculator is for informational and harm-reduction purposes only. Kratom is not approved by the FDA or EMA as a medicine. This tool does not provide medical advice. Dosage recommendations are approximate — individual responses vary significantly.

Natural botanical products have variable potency between batches and suppliers. Always start with a lower dose than you think you need. Use a digital scale for accurate measurement.

Kratom may be subject to legal restrictions in your country or region. It is the user's responsibility to check and comply with local laws. Do not drive or operate machinery after consuming kratom.