How Much Does CBD Oil Cost? A Price-Per-Milligram Guide
Updated July 21, 2026. Prices and availability can change; use the linked product pages for the current amount at checkout.
The sticker price on a bottle does not tell you whether a CBD oil is expensive or a good value. A stronger bottle usually costs more upfront, but it can cost much less for each milligram of CBD. The clearest comparison is price per milligram, followed by extract type, ingredient quality, available lab information, and the strength that fits your intended use.
At Plain Jane, current CBD oils range from $26.99 to $99.99 per bottle. Across the available examples below, the cost works out to roughly $0.0079 to $0.029 per milligram of CBD—or about 0.79 to 2.90 cents per milligram. Higher-strength bottles generally deliver the lowest cost per milligram.
Shop current CBD oils and compare available strengths
How much does CBD oil cost?
CBD oil prices vary because bottles can contain very different amounts of CBD. Two bottles may look nearly identical while one contains 1,000 mg and the other contains 10,000 mg. Comparing only the bottle price can therefore make the stronger—and often better-value—option look more expensive than it really is.
For a practical comparison, look at three numbers:
- Bottle price: the amount paid before discounts, tax, or shipping.
- Total CBD: the full milligram amount in the bottle, not the amount in one serving.
- Price per milligram: the bottle price divided by the total CBD.
A 1,000 mg bottle priced at $26.99 costs about 2.70 cents per milligram. A 10,000 mg bottle priced at $99.99 costs about 1 cent per milligram. The second bottle has a higher checkout price, but each milligram costs substantially less.
How to calculate CBD price per milligram
Use this formula:
Bottle price ÷ total milligrams of CBD = price per milligram
For example:
$69.99 ÷ 5,000 mg = $0.014 per mg, or approximately 1.40 cents per mg.
This calculation makes different bottle strengths easier to compare. It also keeps a low sticker price from hiding a high per-milligram cost. Price per milligram should not be the only buying factor, but it is the most useful starting point for understanding value.
Current Plain Jane CBD oil price examples
The table below uses current Plain Jane prices as of July 21, 2026. Availability varies by strength and flavor, so confirm the live product page before ordering.
| CBD oil | Strength | Current price | Approx. price per mg |
|---|---|---|---|
| CBD isolate oil | 1,000 mg | $26.99 | 2.70 cents |
| CBD isolate oil | 2,000 mg | $36.99 | 1.85 cents |
| CBD isolate oil | 5,000 mg | $69.99 | 1.40 cents |
| CBD isolate oil | 10,000 mg | $99.99 | 1.00 cent |
| Broad-spectrum CBD oil | 5,000 mg | $57.00 | 1.14 cents |
| Broad-spectrum CBD oil | 10,000 mg | $79.00 | 0.79 cent |
| Full-spectrum CBD oil | 1,000 mg | $28.99 | 2.90 cents |
| Full-spectrum CBD oil | 5,000 mg | $59.99 | 1.20 cents |
| Full-spectrum CBD oil | 10,000 mg | $89.99 | 0.90 cent |
These examples show why “cheap CBD oil” and “good-value CBD oil” are not always the same thing. A lower-priced bottle can be the right choice when you want a smaller upfront purchase. A higher-strength bottle can be the better value when you compare the amount of CBD received for each dollar.
What affects the price of CBD oil?
Total CBD strength
The total milligram amount is one of the biggest price drivers. More concentrated bottles require more CBD input, so their sticker prices are normally higher. At the same time, larger strengths often cost less per milligram because packaging, filling, labeling, and fulfillment are spread across more CBD.
Isolate, broad-spectrum, or full-spectrum formula
CBD oils are not all made with the same extract. CBD isolate oil is formulated around isolated CBD. Broad-spectrum CBD oil is intended to retain a broader cannabinoid profile while excluding THC from the finished formula. Full-spectrum CBD oil retains a wider range of naturally occurring cannabis compounds and can contain THC within the product's stated limits. Confirm the current label and report for the exact product.
Those formulations involve different inputs and production decisions, so comparing two oils only by milligrams can miss an important difference. First decide which extract type you want; then compare price per milligram among products in that same category.
Testing and batch information
A low price is not useful if you cannot verify what the bottle contains. Look for accessible product or batch information and match the product name or identifier on the report to the item being sold. The cannabinoid results should support the labeled strength and formula. Plain Jane provides available lab information through its lab results and batch reports page and individual product pages.
Ingredients and flavor options
Carrier oils, flavor ingredients, and the number of available combinations can affect production cost. They also affect whether a product suits your preferences. Compare the ingredient list and product format alongside the price rather than assuming every oil with the same CBD strength is interchangeable.
Discounts, shipping, and subscriptions
A discount can lower the final cost, but it should be applied after the underlying value comparison. Start with the regular price per milligram, then account for any active promotion and shipping charge. This makes it easier to compare a genuine everyday value with a temporary sale price.
Is high-strength CBD oil a better value?
High-strength CBD oil often has the lowest price per milligram, but that does not automatically make it the right bottle for every shopper. A smaller bottle may make more sense when you are trying a formula or flavor for the first time, want a lower upfront price, or do not need a high total milligram amount.
A larger bottle may make more sense when you already know the formula you want and care most about reducing the long-term cost per milligram. The product label—not the price table—should guide how the product is measured and used. Do not measure a more concentrated bottle as though it were the same strength as a lower-concentration option.
How to find good CBD oil prices online
Use the same checklist at any online cannabis dispensary:
- Confirm the total CBD in the bottle. Do not confuse total milligrams with milligrams per serving.
- Calculate the price per milligram. Divide the regular bottle price by total CBD.
- Compare like with like. Evaluate isolate against isolate, broad-spectrum against broad-spectrum, and full-spectrum against full-spectrum.
- Check the product details. Review ingredients, flavor, bottle information, and available strengths.
- Review available lab information. Match the report to the product or batch rather than relying on a generic testing statement.
- Confirm live availability. A price is only useful when the desired strength and flavor can actually be ordered.
- Calculate the final cart cost. Apply valid discounts and add shipping or tax before making the final comparison.
This process gives you a clearer answer than choosing the cheapest bottle on the page. It also makes it easier to see why a stronger oil can cost more upfront while delivering more CBD for each dollar.
CBD oil price FAQ
What is a good price per milligram for CBD oil?
There is no single number that fits every formula. The most useful benchmark is the cost per milligram among oils with the same extract type and similar product information. Plain Jane's currently available examples range from about 0.79 to 2.90 cents per milligram, depending on the formula and strength.
Why does 10,000 mg CBD oil cost less per milligram?
The bottle contains more CBD, while many fixed production and packaging costs do not increase at the same rate. That can reduce the cost assigned to each milligram even though the total bottle price is higher.
Does a higher CBD oil price mean better quality?
Not by itself. Price can reflect strength, formula, ingredients, testing, packaging, and brand overhead. Compare the product details and available batch information instead of using price as a shortcut for quality.
What is the cheapest Plain Jane CBD oil?
At the time of this update, available CBD oil options start at $26.99. Prices and inventory can change, so visit the CBD oil collection for the current lineup.
Where can I compare Plain Jane CBD oils?
The Plain Jane CBD oil collection shows current isolate, broad-spectrum, and full-spectrum options. Open the individual product page to compare available strengths, flavors, ingredients, pricing, and lab information.