How Long Does 1g of Cannabis Oil Last?
The short answer
For the average consumer taking moderate, everyday sessions, 1 gram (1,000mg) of cannabis oil typically lasts anywhere from one to four weeks. Light or occasional users can stretch a 1g THC oil cartridge to a month or longer. Heavy daily consumers may go through it in just a few days. Let's unpack exactly what drives that range.
How many puffs are in a 1g vape cartridge?
This is one of the most searched questions around cannabis oil, and one of the trickiest to answer. Technically, a 1g vape cartridge contains around 200–300 puffs at a standard 3–5 second draw. In practice, however, real-world usage means shorter draws, occasional clogs, hardware inefficiency, and sharing. So most people realistically get 100–150 usable puffs from a 1g cart.
Oral oil: how much cannabis oil should I use per session?
If you're consuming oil orally or sublingually (under the tongue), a sensible cannabis oil dosage for beginners is usually 5–10mg per session. Experienced users often take 25–50mg at a time. Because oral oil must pass through digestion, cannabis oil bioavailability when taken orally is lower than when inhaled; estimates range from 10–20% for oral versus 50–60% for inhalation. That means you may need to consume more by weight to feel the same effect, which can shorten how long your gram lasts.
Key factors that affect vape cartridge lifespan
No two consumers are the same. Here are the biggest variables that determine how quickly you'll work through a gram:
1. Frequency of use
Someone vaping twice a day will exhaust a gram three to four times faster than someone who uses it a few times a week. There's no way around the math, but being honest about your usage pattern helps you budget accurately.
2. Tolerance
A seasoned consumer with high tolerance naturally takes larger doses to achieve the same effect, burning through product faster. Someone new to cannabis typically needs far less per session.
3. Potency of the oil
Not all 1g cartridges are equal. An oil with 80% THC will hit harder per puff than one at 50%, meaning you may need fewer puffs to reach your desired effect, making the gram last longer in practice. Always check the label for total cannabinoid content, not just the weight.
4. Delivery method: cannabis oil vs flower cost efficiency
Vaping concentrates is generally more cost-efficient than smoking flower. Because you're consuming a purer product with less waste. Vaping can be wasteful if your technique is off or your temperature is too high. Oral consumption, as noted above, loses some potency to digestion. Knowing your delivery method helps you set realistic expectations for your 1g.
5. Device quality
A cheap vape pen with a poorly designed heating core atomizes oil inefficiently, wasting product with every puff. A quality 510-thread battery with adjustable voltage extracts far more from each draw, and can meaningfully extend your vape cartridge lifespan by days.
How to make cannabis oil last longer
A few habits make a real difference if you want to stretch your supply. Take smaller, slower draws; big and fast rips will waste oil as vapor you exhale without absorbing. Store your cartridge upright at room temperature; heat and horizontal storage cause leaking and degradation. Consider microdosing: smaller, intentional amounts often deliver the experience you're looking for without burning through your stash.
For oral consumers, pairing doses with a meal rich in healthy fats boosts absorption significantly, a simple trick that can effectively stretch a gram by 20–30% for some people.
