Calculating Cannabis: How Many Oz in a QP?

As a cannabis enthusiast or someone in the industry, understanding the terminology and measurements used in the world of cannabis is crucial. You may have come across terms like ounce (oz), quarter, half, and QP (quarter pound) when purchasing or discussing cannabis. In this comprehensive guide, we will delve into the specifics of how many ounces are in a QP and other related conversions to help you navigate the world of cannabis measurements with ease.

Understanding Cannabis Measurements:

Before delving into the conversion of ounces to a quarter pound, it is essential to understand the baseline measurements commonly used in the cannabis industry:

  1. Gram (g): The smallest unit of measurement, typically used for smaller quantities of cannabis. There are approximately 28 grams in an ounce.

  2. Eighth: Equal to 1/8th of an ounce or approximately 3.5 grams.

  3. Quarter: Equal to 1/4th of an ounce or approximately 7 grams.

  4. Half: Equal to 1/2 of an ounce or approximately 14 grams.

  5. Ounce (oz): Equal to 28 grams.

How Many Ounces in a QP (Quarter Pound):

A quarter pound (QP) of cannabis refers to a weight measurement equal to one-fourth of a pound, which is roughly 4 ounces. Knowing this, we can deduce that there are 16 ounces in a pound, making a quarter pound equivalent to 4 ounces.

Therefore, a QP consists of four ounces of cannabis, making it a popular choice among consumers and sellers due to its cost-effectiveness when purchasing larger quantities.

Converting QP to Smaller Units:

If you have a quarter pound of cannabis and want to break it down into smaller units for personal use or sale, here is a breakdown of the conversions:

  • 1 QP (Quarter Pound) = 4 ounces
  • 1 ounce = 28 grams
  • 1 gram = 1000 milligrams

1 QP (Quarter Pound) = 112 grams
1 QP (Quarter Pound) = 112000 milligrams

Commonly Asked Questions About Cannabis Measurements:

1. What is the significance of knowing cannabis measurements?

Understanding cannabis measurements is crucial for both consumers and sellers. It ensures accurate transactions, dosing, and adherence to regulations.

2. How many grams are in a pound of cannabis?

There are approximately 448 grams in a pound of cannabis.

3. What is the slang term for an ounce of cannabis?

In cannabis culture, an ounce of cannabis is commonly referred to as an “O”.

4. Is there a standard weight for pre-rolls in the cannabis industry?

Pre-rolls typically vary in weight but are commonly sold in 0.5-gram, 1-gram, or 2-gram sizes.

5. How can I measure cannabis without a scale?

While a scale provides the most accurate measurement, you can estimate using common household items. For example, a US nickel weighs approximately 5 grams.


Having a solid grasp of cannabis measurements such as ounces and quarter pounds is essential for anyone involved in the cannabis industry or simply looking to navigate the world of cannabis products effectively. Understanding how many ounces are in a QP and being able to convert between various units ensures smooth transactions and proper dosing. Remember, knowledge is power, especially when it comes to something as valuable as cannabis.

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Kavya Patel
Kavya Patel
Kavya Patеl is an еxpеriеncеd tеch writеr and AI fan focusing on natural languagе procеssing and convеrsational AI. With a computational linguistics and machinе lеarning background, Kavya has contributеd to rising NLP applications.