Stop overpaying for weed. Use our free Price Per MG Calculator to instantly compare the true value of cannabis flower, edibles, vapes, and concentrates.
Price Per MG THC Calculator: Compare Cannabis Value Accurately
Not all cannabis products offer the same value—even when the sticker price looks identical. When you are standing in the dispensary comparing a $30 eighth of flower to a $30 vape cartridge, how do you know which one actually gives you more THC for your money?
Our Price Per MG THC Calculator helps you instantly compare flower, edibles, concentrates, and infused products by breaking the cost down to its most objective metric: the price per milligram of active THC.
Instead of guessing whether an edible or a dab is the better deal, this calculator shows you the true cost of the active ingredient you are paying for.
Cost Per mg Calculator
Compare the true cost of edibles, carts, tinctures, or any product by price per milligram of THC.
Why “Price Per MG” is the Ultimate Measure of Value
Dispensary pricing can be incredibly misleading. A product with a higher sticker price isn’t always more expensive, and a $10 bargain product isn’t always a good deal.
If you buy a $10 pack of gummies that only contains 50mg of THC, you are paying $0.20 per milligram. If you buy a $20 pack of gummies that contains 200mg of THC, you are only paying $0.10 per milligram. The $20 pack is actually twice as cheap as the $10 pack!
Calculating the price per mg of THC helps you:
- Compare different product types fairly (e.g., Flower vs. Edibles).
- Spot overpriced “hype” items instantly.
- Budget your cannabis spending more effectively.
- Avoid paying massive markups just for fancy packaging or celebrity branding.
How to Calculate Price Per Milligram of THC (The Formula)
If you want to do the math yourself, the formula to figure out the exact cost per milligram of THC is simple:
Total Price of Product ÷ Total Milligrams of THC = Price Per MG
Example 1: Calculating the Value of Edibles
Let’s say you buy a pack of 10 THC gummies for $25. The package says the entire bag contains 100mg of THC total (10mg per gummy).
- The Math: $25.00 ÷ 100mg = $0.25 per mg
- Cost per 10mg serving: $2.50
Example 2: Calculating the Value of Cannabis Flower
Flower math requires an extra step because THC is listed as a percentage rather than total milligrams. First, you have to convert the weight of the flower into milligrams. (Hint: 1 gram = 1,000 milligrams. An eighth of an ounce is 3.5 grams, or 3,500 milligrams).
Let’s say you buy a $40 eighth (3.5g) of flower testing at 22% THC.
- Find total THC: 3,500mg (weight) x 0.22 (THC percentage) = 770mg of total THC.
- Calculate cost: $40.00 ÷ 770mg = $0.05 per mg
Example 3: Calculating the Value of Concentrates (Wax/Shatter)
Concentrates are highly potent, making them incredibly cost-effective. Let’s say you buy 1 gram of wax for $35, testing at 80% THC.
- Find total THC: 1,000mg x 0.80 = 800mg of total THC.
- Calculate cost: $35.00 ÷ 800mg = $0.04 per mg
As you can see from the math, smoking flower or dabbing concentrates will almost always give you a cheaper “Price Per MG” than eating pre-packaged edibles!
Typical Price Per MG THC Ranges in Colorado
While prices vary widely depending on the dispensary, local market conditions, and medical vs. recreational taxes, here are the rough ranges you can expect when shopping at dispensaries in Colorado:
- Concentrates (Wax, Shatter, Rosin): $0.02 – $0.08 per mg (Usually the absolute lowest cost per mg).
- Cannabis Flower: $0.03 – $0.10 per mg (Excellent mid-range value, depending on potency and tier).
- Vape Cartridges: $0.05 – $0.12 per mg (You pay a slight premium for the convenience of the hardware).
- Edibles & Drinks: $0.15 – $0.35+ per mg (Highest cost per mg due to kitchen production, food ingredients, and complex packaging).
Use our calculator to test your local dispensary’s menu to see if their prices beat the state averages!
Compare Two Products Head-to-Head
Torn between two different brands on the dispensary shelf? Use our Compare Tool below. Enter the price and total THC of both products, and the tool will instantly tell you which one offers the better mathematical value.
Cost Per mg Compare
Compare two products side-by-side by cost per mg and cost per 10 mg of THC.
Price Per MG vs. Potency: Why Both Matter
It is important to remember that Price per MG tells you the financial value, but Potency tells you the dose.
If you are highly sensitive to THC, buying the absolute cheapest wax might be a great financial value, but a terrible choice for your personal tolerance. For the best dispensary experience:
- Use an edible dosage calculator to understand the exact strength and dose your body needs.
- Use the Price Per MG calculator to find the most cost-efficient way to buy that specific dose.
Together, these two metrics ensure you choose products that match both your wallet and your endocannabinoid system.
Important Considerations When Comparing Value
Price per mg THC is a highly effective, objective metric—but it isn’t everything. Other factors heavily affect your cannabis experience that a calculator simply cannot measure. When making a purchase, always consider:
- Terpene Profile: High THC with no terpenes often results in a flat, one-dimensional high. A slightly more expensive product with a robust terpene profile is often worth the extra money.
- Solvent vs. Solventless: Solventless extracts (like Hash Rosin) will always cost more per mg than chemically extracted wax (like BHO). You are paying for a cleaner, artisan extraction process.
- Product Freshness: Old, dry weed on sale might have a great price per mg, but the THC may have degraded into CBN, making you sleepy rather than euphoric.
- Onset Time: Edibles cost more per mg, but the effects last 4 to 6 hours longer than smoking flower.
This calculator focuses entirely on objective cost comparison, not subjective effects.
Frequently Asked Questions (FAQ)
Not necessarily. A lower cost per mg means you are getting better THC value for your dollar, but quality, flavor, curing methods, and overall experience still matter. Don’t sacrifice a safe, clean product just to save a penny per milligram.
If you are buying edibles or tinctures, the Total THC in the package will be printed directly on the label (e.g., “100mg Total THC”). If you are buying flower or concentrates, you will need to multiply the weight by the THC percentage, as shown in the formula section above.
Yes! The math is exactly the same. Just enter the total CBD milligrams from the tincture bottle or gummy package instead of THC, and enter the price. This is incredibly helpful, as CBD products are notorious for wild price variations.
Absolutely. If you used a cannabutter calculator to figure out the total THC in your homemade batch of brownies, you can divide the cost of your ingredients by that total THC to find out exactly how much money you saved by cooking at home versus buying at the dispensary!
When you buy an edible, you aren’t just paying for the THC extract. You are paying for the sugar, the flavorings, the commercial kitchen space, the specialized packaging required by state law, and the labor of the chefs. Flower requires much less processing, making it fundamentally cheaper.