Adults 21+ only. This page is intended for adults of legal age in jurisdictions where cannabis is permitted. This tool is for educational purposes only and does not constitute medical advice. Always consult a healthcare provider if you have health concerns. Never drive or operate machinery after consuming cannabis.
🧮 Edible Dosage Calculator
Get your personalised THC starting dose in seconds — based on weight and experience level.
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Your Recommended Dosage
Recommended THC
—
milligrams (mg)
Edibles to Take
—
pieces
Wait Before More
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hours minimum
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⚠️ Disclaimer: This tool is for informational and educational purposes only. It does not constitute medical advice, and results are estimates based on general dosage guidelines. Individual responses to THC vary greatly depending on metabolism, body chemistry, tolerance, and other factors. Always start low and go slow. If you have any medical conditions or take medications, consult a healthcare professional before using cannabis. For use by adults 21+ only in compliance with Vermont and applicable state law.
Cannabis Education
What Is the Right Edible Dosage?
There is no single perfect dose that works for every person. Your ideal THC amount depends on your body weight, how often you use cannabis, your metabolism, and what result you are looking for.
I get this question every week at the shop. People walk in and ask, "How much should I take?" — and the honest answer is always: start with less than you think you need. Edibles work very differently from other forms of cannabis. When you eat an edible, your liver processes the THC into a compound called 11-hydroxy-THC, which is stronger and longer-lasting than what you inhale.
That delayed effect is the main reason people run into trouble. They take a dose, wait 30 minutes, feel nothing, and take more. Then both doses hit at once — and the experience becomes uncomfortable. The golden rule with edibles is: wait at least 2 hours before deciding the first dose did not work.
The "Start Low, Go Slow" Principle
This phrase exists for a reason. The American Academy of Sleep Medicine, the Vermont Cannabis Control Board, and virtually every credible cannabis health organisation repeat the same advice: begin with the smallest possible dose and build up gradually over multiple sessions — not within a single session.
💡 Real-world example: A 2.5 mg THC dose feels very gentle for most people. A 10 mg dose in one sitting is considered moderate. A 25 mg+ dose is high and not recommended for anyone without significant experience. Many experienced users are surprised to find that lower doses actually produce a more enjoyable experience — strong doses can cause anxiety, not relaxation.
If you are new to cannabis edibles, begin with 2.5 mg. If you have tried edibles once or twice, 5 mg is a reasonable starting point. These numbers are supported by public health guidance from the Vermont Cannabis Control Board and general clinical consensus on responsible cannabis use.
Want to understand more about how different cannabis products compare? Read our guide on Indica vs. Sativa vs. Hybrid to learn how product type also affects your experience.
This edible dosage chart is based on widely-cited public health guidelines and general consumer research. It is a starting point — not a prescription.
Experience Level
Recommended THC Dose
What to Expect
Who It's For
Wait Time
🌱 Beginner
1 – 5 mg
Subtle relaxation, mild mood lift
First-timers, those with low tolerance
2 – 3 hours
🌿 Intermediate
5 – 15 mg
Clear relaxation, possible body feeling
Occasional users with some experience
2 hours
🍀 Experienced
15 – 30 mg
Stronger effects, significant body sensation
Regular users with established tolerance
2 hours
⚡ High Tolerance
30 mg+
Very strong, not for most people
Long-term daily users only
2+ hours
Keep in mind that body weight plays a role too. A person weighing 120 lbs will usually feel the same dose more intensely than someone at 220 lbs. Our edible dosage calculator above adjusts for this by factoring in your weight when recommending a dose range.
This is the most common source of edible mistakes. Unlike smoking or vaping, edibles must be digested and processed by your liver before you feel any effects.
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Onset Time
Most people begin to feel edibles within 30 minutes to 2 hours of eating them. On an empty stomach, effects can come faster — sometimes in 20 minutes.
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Peak Effects
The strongest part of the experience typically hits around 2 to 3 hours after consuming. This is when most people feel the most intense sensations.
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Total Duration
Edible effects usually last between 4 and 8 hours, sometimes longer for higher doses or first-time users. Plan your day accordingly.
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Food Affects Timing
Eating a fatty meal before taking an edible can slow onset but intensify effects. An empty stomach speeds things up. This variability is another reason to wait the full 2 hours.
⏱ The 2-Hour Rule
The most important number to remember is 2. Wait a minimum of 2 hours after your first edible dose before considering any additional amount. Many uncomfortable edible experiences happen because someone thought the first dose "wasn't working" — then both doses kicked in simultaneously.
Set a 2-hour timer after consuming
Drink water and eat a light meal
Stay in a comfortable, familiar environment
Have a trusted person with you if it is your first time
Safety Guide
Common Mistakes When Taking Edibles
Over the years, I have heard the same stories repeatedly. These are the most avoidable mistakes people make with cannabis edibles — and how to sidestep every one of them.
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Taking more because "nothing is happening"Edibles take up to 2 hours to fully take effect. Patience is essential. Taking a second dose too soon is the #1 cause of overwhelming experiences.
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Ignoring the product labelNot all edibles are equal. A single gummy might contain 5 mg, 10 mg, or 25 mg of THC. Always read the label and know the exact amount per serving before you consume anything.
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Eating on an empty stomachWhile this speeds up onset, it can also make effects feel unpredictably strong. Having a light meal beforehand gives you a more consistent and manageable experience.
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Mixing edibles with alcoholAlcohol significantly intensifies THC effects and is not recommended, especially for new users. This combination can lead to nausea and discomfort even at low doses.
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Not storing edibles safelyCannabis edibles should be kept in their original childproof packaging, out of reach of children and pets. They must not be left where they could be mistaken for regular food.
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Choosing products without checking THC contentAt a licensed dispensary, every product is lab-tested and clearly labelled. Buying from unlicensed sources offers no such guarantee — potency and ingredients may be unknown or unsafe.
Step-by-Step Method
How to Calculate THC Dosage Safely
Using our THC dosage calculator above is the fastest way to find your starting range. But it helps to understand the logic behind the numbers so you can make informed decisions at any point.
Step 1 — Check the Product Label
Every legal cannabis edible sold in Vermont includes a label showing total THC content and serving size. For example, a bag of gummies labelled "100 mg total THC — 10 pieces" contains 10 mg per piece. A single cookie labelled "25 mg THC" is a single serving of 25 mg. Always start with this number.
Step 2 — Choose Your Starting Dose Based on Experience
Use our dosage chart above or the calculator as your reference. If the product serving size is larger than your recommended dose, you can cut the edible into smaller pieces. Many dispensaries carry lower-dose options specifically designed for new users — our team at Juana's Garden is always happy to help you find the right product for your needs.
Step 3 — Calculate Using a Simple Formula
📐 Simple Dosage Formula:
Edibles to consume = Your target dose (mg) ÷ THC per edible (mg)
Example: Your target dose is 5 mg. Your edible contains 10 mg each. You should consume half a piece (5 ÷ 10 = 0.5).
Step 4 — Wait, Observe, Adjust
After taking your calculated dose, wait the full 2 hours. Note how you feel. If the experience was comfortable, you can try the same dose again next time. If you want stronger effects, increase by 2.5 mg at your next session — not during the same session. This step-by-step approach keeps you in control.
If you are in Montpelier, Vermont — or planning a visit — Juana's Garden is a locally owned cannabis boutique offering a curated selection of lab-tested edibles, tinctures, and more. Our knowledgeable team can help you find the right product and dose for your needs. No pressure, just honest guidance.
How much THC should a beginner take in an edible?+
For first-time users, 2.5 mg to 5 mg of THC is the recommended starting dose. This amount is low enough to be gentle but enough to notice a mild effect. If you feel nothing after 2 full hours, you can consider trying 5 mg at your next separate session. Never increase your dose within the same session. Many beginners find that 2.5 mg is the perfect ongoing dose — you do not need more just because a higher dose is available.
Can you overdose on cannabis edibles?+
A lethal overdose from cannabis alone has not been documented in medical literature. However, consuming too much THC can cause a very uncomfortable experience — sometimes called "greening out" — which may include extreme anxiety, rapid heart rate, nausea, confusion, and paranoia. This is not medically life-threatening in most cases, but it can feel frightening. The best response is to stay calm, drink water, lie down in a safe place, and wait for it to pass. It will pass. This is why starting low matters so much: there is simply no reason to take more than your body needs.
How long do edibles stay in your system?+
THC from edibles can be detected in urine for varying lengths of time depending on your usage frequency. For a first-time or occasional user, THC may appear in a urine test for 3 to 4 days. For regular users, detection can extend to 10–30 days or longer, because THC is fat-soluble and stores in body tissue over time. Blood and saliva tests have much shorter windows, typically 24 to 72 hours. Hair follicle tests can detect use for up to 90 days. If drug testing is a concern in your workplace or legal situation, factor this in before consuming any cannabis product.
What happens if you take too much THC in an edible?+
If you consume more THC than your body is comfortable with, you may experience intense anxiety, racing heart, disorientation, dizziness, or nausea. This can feel alarming, but it is not a medical emergency in most healthy adults. The best approach: move to a calm, comfortable space, drink water, eat something if you can, and remind yourself that this will pass — typically within 2 to 4 hours. Lying down with your eyes closed and focusing on slow breathing can help. If someone with you is experiencing severe distress or a medical condition that concerns you, do not hesitate to call emergency services. Prevention is always better: use our edible dosage calculator to stay within a safe range.
Does body weight affect edible dosage?+
Body weight is one of several factors that influence how strongly you feel cannabis edibles. Generally, people with higher body weight may require a slightly higher dose to achieve the same effect as someone lighter. However, individual metabolism, cannabis tolerance, and personal sensitivity play equally important roles. Our edible dosage calculator uses your weight as one input to give you a more personalised starting range — but the safest approach is always to begin at the lower end of any suggested range, regardless of your size.
What is the best edible dosage calculator for beginners?+
The best edible dosage calculator combines body weight, experience level, and the THC content of the specific product you have. The calculator at the top of this page does exactly that. It factors in all three variables to give you a personalised THC dose range and tells you how many edibles to consume based on the product's per-serving THC content. Always treat calculator results as a starting point — your own body's reaction is the most important guide. Our team at Juana's Garden in Montpelier is also available to give personalised product guidance in person.
⚠️“Cannabis has not been analyzed or approved by the Food and Drug Administration (FDA). For use by individuals 21 years of age and older or registered qualifying patient only. KEEP THIS PRODUCT AWAY FROM CHILDREN AND PETS. DO NOT USE IF PREGNANT OR BREASTFEEDING. Possession or use of cannabis may carry significant legal penalties in some jurisdictions and under federal law. It may not be transported outside of the state of Vermont. The effects of edible cannabis may be delayed by two hours or more. Cannabis may be habit forming and can impair concentration, coordination, and judgment. Persons 25 years and younger may be more likely to experience harm to the developing brain. It is against the law to drive or operate machinery when under the influence of this product. National Poison Control Center 1-800-222-1222.”
