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Everyone comparison-shops by the gram. Almost nobody works out what a single session actually costs, which is strange, because that's the number your monthly spend is built from.
The two figures diverge more than you'd expect. A gram of concentrate costs five or six times what a gram of flower does, and it delivers somewhere around twenty sessions to the flower's four. A package of edibles that looks expensive on the shelf can work out to under fifty cents a dose. And the humble joint, the default for most people, turns out to be one of the more expensive ways to consume cannabis once you account for what burns off while you're not inhaling.
None of this means you should switch methods. It does mean that if your cannabis spend has crept up and you can't work out why, the answer is usually in this arithmetic rather than in the price per gram you've been optimising.
How a Session Is Defined Here
Any comparison like this needs stated assumptions, so here are mine. They're deliberately conservative and reasonable rather than flattering to any one method.
| Method | Material per session | Why |
|---|---|---|
| Joint | 0.5g | A standard half-gram joint |
| Bowl | 0.25g | A typical packed bowl in a pipe or bong |
| Dab | 0.05g | A modest dab, roughly a grain of rice |
| Hash in a bowl | 0.1g | Match-head sized piece |
| Cart | 0.05g | Roughly five draws from a 1g cart |
| Edible | 10mg THC | A standard moderate dose |
A 1g cartridge delivers somewhere in the region of a hundred to two hundred draws depending on the device, the setting and how long you pull. Running the low end of that at five draws per session gives roughly twenty sessions per gram.
The Numbers
Using realistic current pricing. Your actual figures will vary with what tier you buy and what's on sale, but the ranking is stable.
| Method | Price per gram | Per session | Sessions per gram |
|---|---|---|---|
| Joint, budget flower ($95 oz) | $3.39 | $1.70 | 2 |
| Joint, mid flower ($170 oz) | $6.07 | $3.04 | 2 |
| Bowl, budget flower | $3.39 | $0.85 | 4 |
| Bowl, mid flower | $6.07 | $1.52 | 4 |
| Hash | $20.00 | $2.00 | 10 |
| Dab, cured resin | $35.00 | $1.75 | 20 |
| Dab, live rosin | $110.00 | $5.50 | 20 |
| Cart | $40.00 | $2.00 | 20 |
| Edible (600mg pack at $25) | — | $0.42 | 60 doses |
| Edible (2,000mg pack at $60) | — | $0.30 | 200 doses |
Two things jump out of that table.
Edibles are not close. At thirty to forty cents a dose, they're cheaper per session than every inhaled method by a factor of three to ten. That's because you're buying milligrams directly rather than buying plant material and then burning most of its value.
Expensive concentrate is not expensive per session. A gram of cured resin costs ten times what a gram of budget flower does and works out to roughly the same per session, because you use a twentieth as much.
Why Joints Cost More Than the Table Says
The figures above assume you inhale everything you light. You don't.
A joint burns continuously between pulls. Every second it sits in an ashtray, in your hand, or being passed, it's consuming material and putting it into the room. Estimates of how much is lost this way vary widely, and the honest answer is that it depends entirely on how fast you smoke and how long it sits, but it's not a trivial fraction.
A bowl doesn't do this. Combustion stops when you stop applying heat, which is a large part of why the per-session figure for a bowl is so much lower than for a joint using identical flower.
Three things make a joint worse than it needs to be:
Canoeing. An unevenly burning joint can waste a substantial share of its contents down the running side.
Over-dry flower. Dry flower burns faster and hotter, which accelerates everything above. Our humidity pack guide covers keeping it in range.
Group sessions. A joint passed around a circle spends most of its burn time not in anyone's mouth. That's a social cost rather than a mistake, but it's worth knowing it's there.
Carts and dabs waste essentially nothing. Both only consume material while you're actively drawing. That's their real efficiency advantage, and it's invisible in a price-per-gram comparison.
Temperature Changes the Maths
For concentrates and carts, how hot you run the device directly affects how many sessions you get per gram.
High temperatures vaporize more material per draw and produce bigger clouds. That's not efficiency, it's consumption. Running a cart at 4.0 volts rather than 2.8 will empty it noticeably faster while tasting worse.
Our temperature guide covers the bands for each format. The short version: lower settings deliver better flavour and more sessions per gram simultaneously, which is an unusually clean win.
The Caveat That Matters Most
Cost per session only compares like with like if a session means the same thing on every line. It doesn't.
Edible tolerance is not inhaled tolerance. A 10mg edible is not equivalent to half a joint, for anyone. Digestion converts THC into a different compound, which is why experienced smokers can be caught out by their first edible. Our guide on why edibles affect people so differently covers the mechanism, and our guide to reading THC labels covers why the package total is not the dose.
Duration differs enormously. An edible can run four to eight hours. A cart puff might taper within an hour. Cheaper per session doesn't mean comparable per session.
People titrate. If a method produces a weaker effect, most people use more of it, which erases the apparent saving. The table above assumes fixed quantities; real behaviour adjusts.
So treat the figures as a guide to where your money is going, not as an instruction to switch to whatever is cheapest.
What This Means Practically
If you want to cut spend without changing much: switch some sessions from joints to bowls. Same flower, same tier, roughly half the cost per session, no new equipment needed beyond a pipe.
If you want the biggest single saving: move to the ounce tier or better on flower. Going from an eighth to an ounce roughly halves your per-gram cost, which halves every flower line in the table.
If evening sessions are most of your consumption: edibles are dramatically cheaper per dose, and the maths gets better the larger the package. The constraint is dosing discipline, not money.
If you're dabbing live rosin daily: that's the most expensive line in the table by a wide margin, at roughly three times a mid-tier joint. Worth knowing, and worth deciding deliberately rather than by drift.
If your spend crept up without your consumption changing: check your cart voltage and your flower's moisture level before anything else. Both silently increase material consumption without you noticing.
You'll find the tiers across flower, hash, concentrates, vapes and edibles, and same-day weed delivery Ottawa means you can test a format for a week before committing to it as your default.
Frequently Asked Questions
Edibles, by a wide margin, at roughly thirty to forty cents per 10mg dose from larger packages. Among inhaled methods, a bowl of budget-tier flower is cheapest at under a dollar per session. The catch with edibles is that dosing is less forgiving, not that the maths is wrong.
Around $1.70 for a half-gram joint of budget flower bought by the ounce, and roughly $3 for mid-tier flower at the same size. Both figures understate the real cost, because a joint burns continuously between pulls and loses material to the room the entire time it's lit.
Per gram, yes, often by five to ten times. Per session, frequently not. A 0.05g dab from a $35 gram costs about $1.75, which is similar to a joint of mid-tier flower. The high sticker price per gram is offset by using roughly a twentieth as much per session.
Roughly 100 to 200, depending on the device, the voltage setting and how long each draw lasts. Higher voltages consume noticeably more oil per draw. At five draws per session you'd get somewhere around twenty sessions from a gram.
Yes. A joint burns continuously once lit, so every second it's not at your lips it's consuming material into the room. A bowl only burns while you're applying heat. That's why the same flower costs roughly half as much per session in a pipe as it does rolled.
Considerably. Higher voltages vaporize more oil per draw, so a cart run at 4.0 volts empties substantially faster than the same cart at 2.8 volts, while also tasting worse. Running lower gives better flavour and more sessions per gram at the same time.
The Short Version
Price per gram tells you what cannabis costs to buy. Cost per session tells you what it costs to use, and the two rank methods very differently.
Edibles win on cost per dose by a distance. Bowls cost roughly half what joints cost using identical flower, because a joint burns while you're not smoking it. Expensive concentrate is cheap per session because you use so little. And the single largest lever on all of it is still buying flower at the ounce tier rather than the eighth.
If your spend has drifted up, start with your cart voltage and your flower's moisture. Both quietly increase how much material a session consumes, and neither shows up on a receipt.
