How Many Grams in An Ounce: A Buying Guide for Weed

How Many Grams in An Ounce - A Buying Guide for Weed

Weed is most commonly measured in grams, ounces, pounds, or kilos. While dealers and dispensaries ordinarily deal with pounds and kilos, a regular end-user would most likely find himself transacting in grams and ounces.

When to Buy in Grams

The gram is the smallest unit of measurement to buy weed. Dispensaries use it to measure pre-rolled joints. On average, a joint uses around 0.5 g of weed. Another good reason to buy weed by the gram is if you consume it infrequently. Also, if you are trying new strains and aren’t ready to commit to large amounts yet, buying in small bits would be the wisest choice to make.

When to Buy in Ounces

There are 28 grams in an ounce. This means that an ounce can basically produce around 56 joints. Yes, that is a huge amount of weed.

The most frequent way to purchase marijuana is through fractions of an ounce:

  • The eighth, representing ⅛ of an ounce, is the most commonly purchased amount. This lasts a casual smoker around 2-3 weeks. This is also referred to as a “slice”, taking its name from pizzas which were usually sliced into 8 parts.
  • The quarter represents ¼ of an ounce. This is for smokers who tend to burn through their stashes a little faster. Since they consume a fair amount of weed, a larger purchase can be more economical.
  • Half an ounce is recommended for most recipes for edibles. It is also a fair amount for small parties when a stash is meant for sharing.

Conversion in The Cannabis Industry

It may seem odd to have a section talking about how conversion is done specifically in the weed industry, but you will soon understand that this topic is more crucial than it seems. It is common for marijuana dealers to round numbers off for simplicity purposes.

Below is a comparison of the standard values vs rounded-off values:

  Standard Value for Grams Rounded-Off Value

(Accepted values used when purchasing weed)

Eighth 3.54688 g 3.5 g
Quarter 7.0874 g 7 g
Half Ounce 14.17475 g 14 g
Ounce 28.34595 g 28 g

While these are small numbers, they can eventually add up to a huge amount in the long run.

To illustrate, below is the amount of weed you would have gotten if you multiplied using the standard conversion vs the accepted conversion, depending on your average monthly consumption:

Average Monthly Consumption Yearly Consumption in Standard Conversion Yearly Consumption in Accepted Conversion Difference
Quarter 85.0488 g 84 g 1.0488 g
Half Ounce 170.097 g 168 g 2.097 g
Ounce 340.1514 g 336 g 4.1514 g

As you can see, the amount becomes more significant as the purchase size increases.


How to Make the Most Bang for Your Buck

To take the best high from your hard-earned cash, below are a few tips:

Invest on a digital scale

Dealers don’t round numbers off to cheat you. Instead, it’s done to simply make things more efficient in computing manually. Investing on a scale removes this impediment and allows you and your dealer to consider every decimal hassle-free. Be sure to pick a scale that can measure from at least 0.1 g (or even better, 0.01 g) to at least 200 g. It’s also great to invest in one that plugs on to a socket instead of one that’s battery-powered.


To see is to believe

If you’re buying raw flowers, make sure that they are weighed in front of you and that the scale is properly tared (which means that it was adjusted to start with zero). For pre-packed weed, feel free to weigh it as soon as you get home without the packaging. For any inaccuracy, inform your dealer to avoid future mishaps as this may be unintentional from their end.


Other Ways to Measure Weed

While it is ideal to always carry a digital scale with you when you’re planning to purchase weed, there may be instances where your trusty gizmo isn’t within reach. On those (hopefully rare) instances, one way you can muster a fair approximate for your marijuana’s weight is with digital scale apps on your smartphone.

While several veterans may be able to guess their buds’ weight by simply looking at them, this is not recommended for the untrained eye. The weight of weed is affected by several factors such as density and moisture. The difference in the characteristics of indica and sativa buds also makes measuring by eye such an unreliable method. Should scales not be available, it is best to use the method mentioned above as an alternative rather than relying on sight.


Understanding grams and ounces is important for both newbies and veterans alike. Making the most out of every decimal can help make weed purchases more satisfying and economical especially in the long run.

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