Your job here: Turn batch inputs into a mg-per-serving range you can defend.
Four calculators, one shared memory. Pick the question you actually have — mg per serving in a batch, mg per drop in a tincture, mg per gummy from a batch of molds, or how to dilute a too-strong tincture. Switch tabs freely; your flower potency and last result carry over so you don't re-type.
It asks what material you're starting with, whether your label says Total THC or raw THCA, and which method you're using — because those three answers are the difference between a useful number and a guess. Hit Show the math under any result and you'll see every factor we applied and why.
About these defaults
The pre-filled numbers are reasonable starting values, not your numbers. Edit any field to match your batch — your inputs save automatically and carry between tabs, so you only have to type them once.
Not yet decarbed — pays both decarb and extraction loss.
Strong effects. Experienced users only.
Free Dosing Cheat Sheet + Batch Tracker
Two printable one-pagers. The cheat sheet: dose table, the only two equations you need, and a "why your batch failed" diagnostic. The batch tracker: log every batch — starting flower, decarb, infusion, yield, mg per serving — so next time isn't a guess. Print them. Tape them to the fridge.
Free, instant download. We'll save your email for occasional updates — no spam, ever. Or just grab the cheat sheet directly →
Why Does Another Calculator Give Me a Different Number?
If you run the same batch through four edible calculators you will get four answers, sometimes 30% apart. That isn't one of them being broken — it's four different sets of hidden assumptions. There are only four things that actually move the number:
1. Whether decarb loss is modeled at all
Several popular calculators multiply grams × potency and stop. That's the theoretical maximum, not a home kitchen. Home decarb lands nearer 80–92% depending on method, and some THC degrades to CBN along the way. A calculator that skips this reads high.
2. Whether extraction loss is modeled at all
Not everything that survives decarb makes it into the butter. Open-pot stovetop is the leakiest (60–75%); a sealed machine or an ethanol tincture is the tightest (80–95%). Pick your method above and the range moves with it, instead of one hard-coded number standing in for all five.
3. Whether you typed THCA into a THC field
This is the quiet one. THCA sheds its carboxyl group when it converts, losing 12.3% of its mass — 20% THCA is about 17.5% THC even at perfect decarb. Most labs already publish an adjusted Total THC, but if your COA lists raw THCA and you paste that number in, you'll overshoot before any other factor applies. Set the label basis to THCA and we apply the 0.877 correction and say so.
4. Whether loss assumptions get applied to material that's already activated
This is where generic calculators do real damage. Distillate and RSO/FECO were decarbed during processing — charging them a decarb loss and an extraction loss understates the dose. An 800 mg labelled syringe should read about 800 mg, minus only what stays on the syringe. Pick RSO / FECO or Concentrate above and we skip both factors.
Our answer to all four: we show a range, never a single fake-precise number, and every factor we applied is listed under Show the math with the reason it was applied. If you disagree with an assumption, you can see it and adjust the inputs — you don't have to trust us.
Worked Example
Brownie batch, mason jar method
7 g flower at 20% Total THC → cannabutter (240 ml) → 2 tbsp in a 12-brownie recipe
Same math for other paths: tincture (switch method to alcohol) or a 24-gummy batch (use the Mg Per Gummy tab).
Is an Infusion Machine Worth It for Your Batches?
Once you know your mg-per-serving, the next question is usually cost. Here's the short version, using the flower weight you entered above — the full calculator, where every assumption is editable, lives on the manual-vs-machine page.
Want the comparison done for you? Answer five questions in the Machine Finder and it names the machine (or tells you to stay manual) with the same payback math.
Embed This Calculator on Your Site
Free to use — no attribution required, but a link back is appreciated. Copy the snippet below and paste it anywhere HTML is supported (WordPress, Ghost, Squarespace, etc.).
<iframe src="https://bethehippy.com/embed/dosage-calculator" width="100%" height="900" style="border:1px solid #e5e5e0;max-width:680px" loading="lazy" title="Edible Dosage Calculator by BeTheHippy" ></iframe>
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. |
Where to Find Your Numbers
Potency: On a dispensary label or COA. Average flower is 15–25% THC; CBD-dominant strains run 8–20% CBD. For RSO/FECO, label mg ÷ 10 gives the percentage — an 800 mg gram is 80%.
Carrier volume: The butter, oil or alcohol you infuse into, in ml. 1 cup ≈ 240 ml, 1 stick of butter ≈ 113 ml.
Beginner-safe mode: Shows the high band as the dose to plan around. If your batch came out average you'll have eaten less than expected — always recoverable. The opposite isn't. Sealed methods like a machine or an alcohol tincture narrow the band; an open pot widens it.
If Something Went Wrong
Weak batches usually fail at decarb or straining, not dosing.
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