Ganja Guides

How Long Does an Ounce of Weed Last?

an ounce of weed spread across table with mason jars and a woman rolling a joint

You have purchased an ounce of weed, and you’re wondering how long it’ll last.

Our guide outlines what you need to know about buying an ounce of weed, including quantity. You’ll also learn about the factors that may influence how long an ounce of weed may last you.

Photo: Unsplash

How much is an ounce of weed?

Also known as zip, an ounce of weed is the legal limit you can purchase in many states in the US and weighs in at around 28 grams or 1/16th of a pound.

On average, an ounce of high-quality weed in the US is $326.06. However, the price varies from one location to another. For instance, in the District of Columbia, an ounce may cost $597.88, while in Colorado, it may cost $241.74. 

Also, the availability of weed will impact the price

How long does an ounce of weed last if you smoke daily?

For daily smokers, an ounce of weed can last anywhere between a few weeks to one month. However, considering these factors will give you a closer estimate.

Frequency and dosage 

How many times do you consume weed per day? For stoners who smoke weed only once, an ounce will last longer than those with several sessions throughout the day. 

Another crucial factor to consider is the amount. For instance, if you’re smoking a one-gram joint each day, an ounce can last you at least four weeks. If you prefer to smoke three 0.5-gram bowls daily, an ounce can last approximately 18 days

Consumption method

How you consume weed may influence how long an ounce will last. Here are different ways to consume weed.


A standard joint has 0.5 grams of weed. Hence, an ounce has enough cannabis to roll around 56 standard-sized joints. Let’s say you’re smoking two joints per day; an ounce can last up to 28 days. 

King-sized joints may take up to 1 gram of weed, reducing the number you’ll roll. How long they’ll last will depend on your frequency of use, dosage, desired effects, and more. 


Vaping extracts more cannabinoids from the same amount of weed compared to traditional smoking. With that said, you’ll vape a smaller amount of weed to feel the same effects. This may influence how long you’ll go through an ounce when smoking daily.


Some individuals have to smoke more weed to get stoned. For instance, a heavy smoker consuming two grams each day, an ounce, will last just 14 days. On the other hand, a light smoker needs a smaller amount each day, significantly increasing an ounce’s duration. 

How long should an ounce of weed last?

For an average smoker, an ounce can generally last a few weeks to two months. However, it’s important to consider factors such as frequency of use, personal preferences, potency, and budget, which will influence how fast you deplete your supply. 

How long does half an ounce of weed last you?

Half an ounce (14 grams) may last a few weeks. However, it depends on dosage, consumption method, tolerance, etc. 

How to store an ounce of weed to last longer

Now that you know how long an ounce may last you, let’s move on to how to store weed to preserve freshness and potency. 

Airtight dark container 

Exposing weed to elements such as air, light, and temperature may degrade the sought-after cannabinoids. An airtight dark container will protect your weed from such elements, maintaining its potency. Also, ensure you store the containers on a cool, dark shelf.

Regular monitoring 

Exposing weed to the abovementioned elements may encourage mold growth. For this reason, closely monitoring your stash for any sign of spoilage is important. Any spoiled batch should be disposed of immediately to avoid ingesting harmful compounds. 

Make it Last 

An ounce may last you from a few weeks to a few months. However, dosage, frequency of use, tolerance, and desired effects will determine how long an ounce will ultimately last. 


About Jeremy

Jeremy graduated with a Bachelor's degree in Information Technology from the Technical University of Kenya. Over the past four years, he's been passionate about writing on a wide range of cannabis-related topics. In addition to guides, he's explored various aspects of cannabis, including its medical benefits, legalization efforts, cultivation techniques, and its impact on society. You can reach him at [email protected].