Full recipe: 0
Per portion: 0
Positive Effects
Negative Effects
Effects vary by person, tolerance, and method of consumption.
Cannabis Edible Dosage Calculator
Use this free calculator to find out exactly how many milligrams of THC are in each portion of your cannabis edibles — before you cook. Enter your cannabis amount, strength, and number of servings. Instant, accurate results.
THC Dosage Guide
How many mg is the right dose for you?
| Level | THC per serving | Expected effects |
|---|---|---|
| Microdose | 1–2.5 mg | No or barely noticeable effect. Good for first-timers. |
| Beginner | 2.5–5 mg | Mild relaxation, light euphoria. Ideal starting dose. |
| Casual | 5–15 mg | Clear euphoria, altered perception. Common recreational dose. |
| Experienced | 15–30 mg | Strong effects, may cause anxiety in low-tolerance users. |
| High dose | 30–50 mg | Very intense. Recommended only for high-tolerance users. |
| Extreme | 50+ mg | Overwhelming for most people. Medical patients only. |
How to Use the Calculator
- Enter the grams of cannabis you plan to use.
- Set the THC percentage (check your dispensary label, or use the "Not sure?" guide).
- Enter the number of servings your recipe makes.
- The calculator instantly shows mg THC per serving and total potency.
Try It With a Recipe
Open any recipe to pre-fill the calculator with suggested amounts:
Frequently Asked Questions
Beginners should start with 2.5–5 mg of THC. This is a microdose that produces mild effects without overwhelming anxiety. Wait at least 2 hours before taking more, as edibles take longer to kick in than smoking.
Cannabis edibles typically take 30 minutes to 2 hours to kick in, depending on your metabolism, body weight, and whether you've eaten recently. The effects can last 4–8 hours, much longer than smoking.
Use the formula: P = 10 × (G × S) / N, where G = grams of cannabis, S = potency percentage, N = number of servings, and P = mg of THC per serving. For example, 3.5g of 20% cannabis divided into 20 servings = 35 mg each.
When you eat cannabis, your liver converts THC into 11-hydroxy-THC, a more potent compound that crosses the blood-brain barrier more effectively. This makes edibles significantly stronger and longer-lasting than inhaled THC.
Overconsumption of cannabis edibles can cause intense anxiety, paranoia, rapid heartbeat, and disorientation. These effects are temporary and not life-threatening. If this happens: stay calm, drink water, lie down in a comfortable place, and remember the feeling will pass. Use our calculator before consuming to avoid this.
No. The potency of your edibles depends only on the amount of cannabis used, its THC percentage, and the number of servings. The quantity of butter or oil you use affects texture, not potency. Our calculator reflects this exactly.
Always start low and go slow. Wait at least 2 hours before taking more. This calculator is for educational purposes only.