The lab results calculator measures the accuracy of a CBD product to see if you’re getting as much CBD as you paid for.
First, enter the product’s total amount of CBD in milligrams (mg). This amount is listed on the product’s label. Then, enter the amount of CBD listed on the product’s third-party lab test results (total or mg per ml, according to what you found in the lab results). If the test result only shows mg/ml, you also need to enter the bottle size in ml.
The calculator will then show you the percentage of the difference between the label and the actual amount of CBD in the product. If it’s less than 10%, the product will get the best A ranking and pass the test. Between 10-20% the product will get a B score, between 20-30$ a C score, and above 30% = F score.
A third-party cannabinoid profile/potency test document will typically have columns listing the name of individual cannabinoids (like CBD and delta-9 THC) and their amounts.
These amounts can be listed in milligrams (mg) per gram (g) of product, mg per milliliter (ml), mg per unit (bottle, gummy, etc.), or a percentage (%) of the total mass. Some documents will also separately list the total amount of CBD in a product.
Here’s how you can use this information to find the total amount of CBD in a product.
In the above screenshot, we can see that there is 411.6 mg of CBD per unit (in this case, a bottle of CBD oil), which makes things easy.
In some cases, the test won’t provide the total amount and will only list the mg/g, mg/ml, or percentage amount. In that case, you need to do some simple calculations to get the total amount of CBD.
If mg/ml is shown, then multiply it by the total product volume (e.g. 30 ml).
If it’s listed as a percentage, you can multiply the total volume by the percentage and then multiply again by 1000 to convert it into milligrams. For example, a 30 ml tincture with 5% CBD would equal (30*0.05)*1000=1500 mg of CBD.
Finally, for mg/g, you can multiply the amount by volume (for oil) or weight of the product (for gummies, capsules, and similar products). If it’s a CBD oil, you can multiply the mg/g by the volume and then multiply again by 0.92 to convert from grams to milliliters. For example, if you had a test showing 40 mg/g for a 30 ml oil, you’d get (40*30)*0.92=1104 mg of CBD in total.
Learn more about COA and how to read it
What is a CBD Certificate Of Analysis (COA) and why is it important