Container background

Quantifying CBD and THC Amounts According to New Regulatory Standards: Mg per g


The Cannabinoid content in cannabis products will soon be following new labelling standards! Our latest JWC journal provides everything you need to know before the changes come into effect on October 17.

What’s happening?

New cannabinoid labelling requirements for cannabis products are coming into effect in October.

As part of “Legalization 2.0”, regulatory changes to labelling standards come into full force alongside the legalization of new classes of cannabis, including extracts, topicals and edibles, on October 17, 2019.

The amendments to the Cannabis Regulations are intended to standardize how the quantities of cannabinoid content are displayed on the labels of all cannabis products.


Beginning October 17, all cannabis products must display the actual and potential total cannabinoid content in mg/g.

Delta-9 Tetrahydrocannabinol (THC) and Cannabidiol (CBD) quantities must be displayed as:

  • Milligrams per gram (mg/g) and/or total milligrams per unit
  • The product’s equivalency, expressed in grams, to dried cannabis

Why milligrams/gram?

The new standard ensures the total cannabinoid content is measured as accurately as possible and enables easier comparison between various products.

Tips for understanding the new requirements:

  • Mg/g is a dried product weight measurement
  • 1 gram (g) is equal to 1,000 milligrams (mg)
  • Converting the cannabinoid content to a percentage is a simple calculation:
  • The easiest way to make the conversion is to divide the mg/g measurement by 10.
  • For example, if you buy JWC Northern Kush GE the THC content will now be labelled as THC 239.2 mg/g. You can arrive at the equivalent THC % with a simple calculation.
  • To calculate: 239.2÷10 = 23.92%

Maximum THC limits

Under the amended regulations, products must not exceed maximum THC limitations. Limits are as follows:

  • 10 mg/discrete unit (e.g. capsule)
  • 10 mg/package edible cannabis
  • 1000 mg/package extract
  • 1000 mg/vape cartridge/pen
  • 1000 mg/package topical cannabis

When will I see these changes?

Though the new legislation comes into full force starting October 17, 2019, Licence Holders are permitted a transitionary period of one year – up to October 17, 2020 – following the date of enforcement to fully implement the labelling changes.

Where can I learn more?

For additional information regarding packaging requirements for cannabis products, please refer to Health Canada’s Packaging and labelling guide for cannabis products.

For more information on changes to the Cannabis Regulations that come into effect for cannabis products on October 17, 2019, please refer to our Journal.

Always consume responsibly.


With any consumption of cannabis products by whatever method or means, the general rule is to start with a low amount, and only increase slowly. Here at JWC, we would like to remind you that determining your dosage should be based on the information provided on your medical document. Do not change your dosage without first consulting with your healthcare provider. As always, make sure that your cannabis consumables are properly labelled and stored out of reach of children and pets. When creating cannabis consumables, try to maintain the ratios between the amount of cannabis and the ingredient (such as butter or oil) which is being infused. If your cannabis ingredient is potent, consider reducing the amount used in a recipe by increasing the portion of non-infused ingredient. This caution applies for cannabis whether obtained on the recreational or the medical market, such that you should carefully monitor your use in order to determine a dosage which is predictable and appropriate for you.

The recipes and other information presented in this site are intended for entertainment and/or informational purposes only and for use by persons having appropriate technical skill, and for use by persons solely at their own discretion and risk. JWC makes no representations or warranties regarding the accuracy, reliability or completeness of the content of the articles presented on this site. It is your responsibility to determine the value and quality of any content, or recipe or other instructions provided on this site and to determine the value, if any, and the safety of the preparation and use instructions. To the extent permissible by law, JWC disclaims all warranties, express or implied, including but not limited to implied warranties of merchantability and fitness for a particular purpose and of non-infringement. JWC shall not be liable for any damages of any kind, whether indirect, incidental, special, consequential or punitive damages, or damages for loss of profits, revenue or use, incurred by the user or by any third party, even if JWC has been advised of the possibility of such damages, which arise or may arise out of your use of or reliance upon this site or the content hereof.

Toll Free 1-888-594-4272
Hours Mon - Fri 7:30am - 5pm EST
Fax 1-855-787-3934
PO Box 46015
Kitchener, Ontario
N2E 4J3
Get Connected
Sign up to receive the latest on JWC!
Sign Up
Curious about cannabis? Find answers to your questions and definitions for common industry terms.
Check it out!
©2020 JAMES E. WAGNER CULTIVATION | User Terms of Use