This calculator gives you a confidence-banded dose per serving — not a single suspiciously precise number. Real-world extraction efficiency varies between 60% and 90% depending on method and equipment, and we show you the whole range so you can dose with the actual margin of error in mind. Beginner-safe mode (on by default) shows the strongest likely outcome — the number that matters when you decide how much to eat.
Strong effects. Experienced users only.
Low and Slow
What you'll need to actually make this
Get the Dosing Cheat Sheet
One-page PDF: dose reference table, the only two equations you need, volume conversions, the five rules for first-timers, and a "why your batch failed" diagnostic on the back. Print it. Stick it on your fridge.
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Worked Examples
Brownie Batch (Standard)
7g flower at 20% THC → cannabutter (240ml) → 2 tbsp in a 12-brownie recipe
Tincture Microdose
7g flower at 20% THC → tincture (120ml ethanol) → sublingual drops
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Measurement Conversion Reference
| Measurement | Milliliters (ml) | Notes |
|---|---|---|
| 1 drop | ~0.05 ml | Standard dropper drop |
| 1 dropper (full) | ~1.0 ml | ~20 drops |
| ½ teaspoon | 2.46 ml | Common sublingual dose |
| 1 teaspoon | 4.93 ml | ~76 drops |
| 1 tablespoon | 14.79 ml | 3 teaspoons |
| ¼ cup | 60 ml | 4 tablespoons |
| ½ cup | 120 ml | 8 tablespoons |
| 1 cup | 240 ml | 16 tablespoons |
Dosage Guidelines
| Level | THC (mg) | Typical Effect |
|---|---|---|
| Microdose | 1–2.5 mg | Mild relief, focus, creativity. No impairment. |
| Low | 2.5–5 mg | Relaxation, mild euphoria. Good starting point. |
| Standard | 5–10 mg | Moderate effects. Common recreational dose. |
| Strong | 10–25 mg | Strong effects, experienced users. |
| Very Strong | 25–50+ mg | Very potent. High tolerance only. |
Understanding the Inputs
Flower Weight: The dry weight of cannabis used in your infusion, in grams.
THC / CBD Percentage: The total cannabinoid content of your flower, typically found on lab test results or dispensary labels. Average flower is 15–25% THC; CBD-dominant strains range 8–20% CBD.
Carrier Volume: The total volume of butter, oil, or alcohol used as the carrier, in milliliters. 1 cup ≈ 240ml.
Why a 60–90% Range? Real-world extraction efficiency varies. Stovetop butter typically lands at 60–75%. Slow cooker: 75–85%. Ardent FX and alcohol tinctures: 85–90%+. Showing you the full range is more honest than picking a single number and pretending it's exact.
Beginner-safe Mode: Displays the high-band number as your "dose to plan around." If your batch turned out average, you'll have eaten less than expected — which is always recoverable. The opposite isn't.
If Something Went Wrong
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