Total cannabinoids is the combined concentration of every cannabinoid present in a cannabis product, expressed as a percentage or in milligrams. It includes the major cannabinoids (THC and CBD) along with all the minor ones like CBG, CBC, and CBN. You’ll see this number on lab reports and product labels, and it gives a fuller picture of what’s actually in the product than looking at THC or CBD alone.
How Total Cannabinoids Differ From Total THC
The most common source of confusion is the difference between “total cannabinoids” and “total THC.” Total THC is a narrower measurement. It accounts for the THC already active in the product plus the THC that will become active when heated (from its precursor, THCA). The industry standard formula is: Total THC = delta-9 THC + (THCA × 0.877). That 0.877 multiplier adjusts for the molecular weight lost when heat converts THCA into active THC. Total CBD uses the same logic: CBD + (CBDA × 0.877).
Total cannabinoids, by contrast, adds up everything: Total THC, Total CBD, and every minor cannabinoid the lab detects. A flower product might test at 25% Total THC but 28% total cannabinoids, meaning 3 percentage points come from other compounds. That gap matters more than most people realize, because those minor cannabinoids contribute to the overall effect of the product.
What Counts as a Minor Cannabinoid
Cannabis produces over 120 cannabinoids beyond THC and CBD. The ones most likely to show up in meaningful amounts on a lab report include cannabigerol (CBG), cannabichromene (CBC), cannabinol (CBN), cannabidivarin (CBDV), and tetrahydrocannabivarin (THCV). Their acidic precursors, like CBGA and THCA, also factor into the total.
Each of these has a different origin story in the plant. CBG comes from the decarboxylation of CBGA, which is actually the precursor molecule for both the THC and CBD pathways. CBC is one of the most abundant minor cannabinoids in cannabis. CBN is unique because the plant doesn’t produce it directly. It forms when THC degrades over time or through exposure to heat and light, which is why older cannabis tends to have higher CBN levels. CBN was the first cannabinoid ever identified, isolated from Indian hemp back in 1896.
Why Total Cannabinoids Matter More Than THC Alone
There’s a well-studied concept called the entourage effect: the idea that cannabinoids, terpenes, and flavonoids in cannabis work synergistically, producing stronger therapeutic outcomes together than any single compound delivers on its own. Full-spectrum products, which preserve the plant’s natural range of compounds, are believed to produce a stronger effect than isolated cannabinoids.
The clinical evidence supports this. In a study on patients with intractable pain, a THC-dominant extract showed no significant improvement over a placebo. A whole-plant extract that included CBD, however, demonstrated considerable improvement in pain relief. Animal studies have echoed this, finding that full-spectrum cannabis extract produced stronger pain-relieving effects than pure cannabinoids alone. In breast cancer cell research, whole cannabis extracts outperformed THC by itself, with increased activity attributed specifically to minor cannabinoids like CBG and THCA.
One research review characterized the difference this way: THC acts as a “silver bullet” targeting a single pathway, while the full range of cannabis compounds functions as a “synergistic shotgun,” affecting multiple targets and mechanisms at once. This is why two products with identical THC percentages can feel noticeably different. The total cannabinoid profile tells you what else is contributing.
Typical Ranges by Product Type
Cannabis flower in the 1990s averaged about 5% THC. Modern strains average 15 to 20%, with some testing as high as 35%. In 2022, the average THC concentration for flower sold in Washington state was 21%. Total cannabinoid percentages for flower typically run a few points higher than the THC number, depending on the strain’s minor cannabinoid production.
Concentrates are a different story. Products like wax, rosin, shatter, and hash oil generally range from 60 to 90% THC, with the 2022 average sitting at 69%. Kief and hash tend to fall between 50 and 80%. For concentrates, the gap between total THC and total cannabinoids can be smaller because the extraction process sometimes strips out minor cannabinoids, or it can be larger if the product is specifically designed to preserve them (as with full-spectrum extracts).
How to Read It on a Lab Report
Cannabis lab reports, formally called Certificates of Analysis (COAs), list cannabinoid concentrations in one of three units: percentage, milligrams per gram (mg/g), or milligrams per unit (mg/unit) for edibles and capsules. Percentage and mg/g are essentially interchangeable for flower and concentrates. A product testing at 25% total cannabinoids contains 250 mg of cannabinoids per gram.
The report will usually break out each cannabinoid individually, then provide a “Total THC,” “Total CBD,” and “Total Cannabinoids” line at the bottom. Look at the individual breakdown to understand the profile. A product with 22% Total THC, 1% CBG, 0.5% CBC, and trace amounts of CBN and THCV tells you something very different from one that’s 24% Total THC with nothing else detectable. Both might be in the same total cannabinoid ballpark, but the first product has a more complex chemical profile.
Labeling Requirements Vary by State
There’s no single federal standard for how cannabis products must display cannabinoid content. Requirements depend on where you live. Maryland, for example, requires all THC products to itemize every cannabinoid ingredient and its weight on the label, along with batch information and health warnings. Many states require Total THC and Total CBD but don’t mandate disclosure of minor cannabinoids. A study of retail cannabis products found that labeling is inconsistent even within the same market: 43.7% of products listed just “THC,” 37.5% listed “Total THC,” and 18.8% listed both, often with different numbers.
If the label on your product only shows THC and CBD, the total cannabinoid content is likely higher than what’s printed. To get the complete picture, look for the COA, which most licensed dispensaries can provide either on the packaging, in-store, or through a QR code.