Weighing And Measuring Cannabis: Grams, Eighths, Quarters, Ounces, Pounds…

Cannabis is measured and sold by weight. That means that if you want to buy and puff like a seasoned weed veteran you have to know a little bit about how all this weighing and measuring works. There are grams, eighths, quarters, ounces, and the list keeps going. All of this may seem overwhelming at first, but marijuana weight conversions are actually pretty simple.

The Basics


An eighth = 3.5 grams.

Eighths are great for people who smoke somewhat regularly. An eighth refers to 1/8 of an ounce. You will almost always get a better price if you buy an eighth instead of a gram. In fact, price cuts are often given at each of the intervals discussed here.

Some people will also sell half-eighths, which should really be called a sixteenth. It’s 1.75 grams.


A quarter = 2 eighths = 7 grams

A quarter is often referred to as a ‘quad’. A quarter is 1/4 of an ounce. If you are buying a quarter then you are probably preparing to get pretty stoney. I commend this decision. Even if you don’t smoke every day, buying a quarter will keep you from having to re-up all the time.

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A half = 2 quarters = 4 eighths = 14 grams

A half refers to 1/2 of an ounce. See, I told you – these conversions really aren’t that tricky. At this point, you’re throwing a party, and I want to be there.


An ounce = 4 quarters = 8 eighths = 28 grams

An ounce is often referred to as an O. It’s hard to describe the feeling of having an ounce of weed to yourself. The word ‘elated’ is pretty good, but still doesn’t do it justice.

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A pound = 16 ounces = 64 quarters = 128 eighths = 448 grams

Let’s be honest. If you’re looking to buy this much weight then you’re probably not smoking it all yourself (unless Snoop is reading this). At this point you probably should have already figured out these conversions.

You can also buy quarter pounds, half-pounds, etc. Again, by this point you should have this thing figured out.

Dimes, Nickels, and Dubs

You’ll notice I didn’t cover these terms with the rest. This is because these terms do not refer to weight. Instead, they refer to dollar amounts – $10, $5, and $20 respectively. For more info check out my article: How Much Is A Dime of Weed? + Dub Sacks and Nickel Bags

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Going Metric


Grams are typically the smallest amount of weed that you would buy. Some people may sell you less; however, a gram is pretty standard if you’re looking to make a small purchase.

What exactly is a gram? Technically a gram is “the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre, and at the temperature of melting ice.” Please do not remember that last sentence. Depending on your tolerance, a gram may last you a few smoke sessions. Alternatively, you can roll a gram into one blunt and blast off to the moon.


If you’re using the metric system (we all should be, but what can you do, right?) you’re going to be using kilos, or kilograms.

A kilogram = 1000 grams

Even though an eighth is the standard way to buy weed, and an eighth is dealing with ounces, the metric system is still an important part of the cannabis scene. That’s because dispensaries often sell herb in grams, and when you weigh your weed on a scale, most people do it in grams.

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This whole thing of going back and forth between imperial (eighths, ounces, and pounds) and metric (grams) can be a little bit of a headache. But with one basic conversion, you can figure things out pretty quickly.Technically speaking, there are 3.54688 grams in 1/8 of an ounce. But to make things simpler, sellers just round it down to an even 3.5 grams.When we use 3.5 grams = 1/8 ounce we can quickly calculate up from there. A quarter is 7 grams (3.5 x 2), a half is 14 grams (3.5 x 4), an ounce is 28 grams (3.5 x 8), and a pound is 448 grams (3.5 x 128).

This is how the world of weed works. As long as you know these basic conversions, you will be able to figure out exactly how much you are buying whether you’re picking up from your dealer or from your local dispensary. Knowing the weight conversions is important, but you’ll need a scale to know exactly what amount you have.

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