A 1-gram cannabis cart typically lasts 200 to 400 puffs, which equals about 1 to 3 weeks for a moderate daily user, around a week for a heavy user, and 1 to 3 months for someone who vapes a few times a week. Half-gram carts last about half as long. CBD and hemp carts follow the same math, so a 1 mL CBD cartridge lasts as long as any other cart of the same size and oil thickness.
How many puffs are in a cart?
A puff means one draw of roughly 2 to 3 seconds. Counts scale with cartridge size and how hard you pull.
- 0.5 g (500 mg) cart: about 100 to 200 puffs
- 1 g (1000 mg) cart: about 200 to 400 puffs
- 2 g cart: about 400 to 800 puffs
Draws of 5 seconds or longer pull far more oil per hit and can cut total puff count by a third or more.
How many days will a 1g cart last?
Divide the puff count by your daily habit. At 15 to 20 puffs a day, a 1 g cart runs 1 to 3 weeks.
- Light use (3 to 5 puffs a day): 1 to 3 months
- Moderate use (15 to 20 puffs a day): 1 to 3 weeks
- Heavy use (40 or more puffs a day): about 1 week
What makes a cart run out faster?
Size is the biggest factor, but heat and draw technique decide whether you land at 200 puffs or 400. Sharing a cart with friends shortens its life in direct proportion to how many people hit it. A cart that clogs, leaks, or sits in a hot car also loses oil you paid for.
Does higher voltage drain a cart faster?
Yes. Higher voltage vaporizes more oil per second, so the same 3 second draw consumes more material. Most CBD and hemp oils vape well at 2.5 to 3.2 volts, while thicker, higher-viscosity oils may need 3.3 to 3.8 volts. Running too hot also scorches the coil, which wastes the remaining oil and creates a burnt taste.
Do clogged carts waste oil?
Clogs often do waste oil. A blocked airway makes people pull harder, which can push oil into the mouthpiece or flood the coil. Storing carts upright and preheating briefly at low voltage keeps the airway clear.
How long does an unopened cart last?
An unopened cart usually holds quality for 12 to 24 months when kept upright in a cool, dark place. Heat, direct light, and air exposure degrade cannabinoids and terpenes over time. Check the batch date and the certificate of analysis (COA) before you buy, since lab-tested products give you a real potency number to track.
Signs your cart is almost empty
Flavor and vapor quality drop before the oil line disappears. Watch for these signals:
- Weaker taste and thinner clouds
- A burnt or dry hit
- Oil sitting below the intake holes
- A cart that no longer bubbles when you pull
Does a CBD cart last longer than a THC cart?
Cartridge size and puff habits matter more than the cannabinoid itself. CBD users often take more puffs per session to reach a desired effect, which can offset the lower voltage they typically use. Hemp-derived carts also vary widely in oil thickness, and thinner oil moves through the wick faster.
How to make a cart last longer
- Take 2 to 3 second draws instead of long pulls.
- Keep voltage low and avoid repeated preheat cycles.
- Store carts upright, below 80 F, away from sunlight.
- Use one cart at a time so nothing sits half-used for months.
- Buy from sellers who publish third-party lab results for every batch.
How long does a 1g cart last if I vape every day?
Daily vapers land between one week and three weeks on a 1 g cart, depending on puff count. Track your use for two days with a simple tally to get a personal estimate. That number tells you far more than any general average.