Cannabutter Ratio Chart: How Much Butter for 2g of Weed?

For 2 grams of weed, 1/4 US cup of butter is a small-batch example: 4 tablespoons, about 57 g, or half a US stick. Want a more dilute batch? Use 1/2 cup (8 tablespoons, about 113 g). The right amount depends on your flower's THC percentage and how much infused butter your recipe will use.

A mixing ratio is not a serving size. At 20% THC and an assumed 90% decarb efficiency, 2 g contains an estimated 360 mg of activated THC before additional extraction losses. In a finished 1/4-cup batch, that works out to about 30 mg per teaspoon — far too much to describe as a beginner spoonful.

Check your own batch in the cannabutter calculator, or jump to the small-batch chart, potency math, or cost per batch.

How much butter for 2 grams of weed or "za"?

If you searched "how much butter to put for 2 grams of za," za is slang for cannabis — it is not a THC percentage. Use the tested potency on your flower's label rather than assuming that a name or price tells you how strong it is.

With the same 2 g of flower, changing the butter changes the concentration, not the starting amount of THC:

Butter in the finished batch	US tablespoons	Estimated THC per teaspoon
1/4 cup (about 57 g)	4	30 mg
1/2 cup (about 113 g)	8	15 mg
1 cup (about 227 g)	16	7.5 mg

These estimates assume 20% THC flower, 90% decarb efficiency and no additional extraction loss. None of these rows is a recommended dose. Straining can remove both butter and cannabinoids, so weigh or measure the recovered butter and treat the result as an estimate, not a lab measurement.

Cannabutter ratio chart for 1g, 2g, 3.5g and 7g

Use this chart to scale a batch, not to choose how much to eat. All cups, tablespoons and sticks below are US measures: 1 cup = 16 tablespoons = 48 teaspoons = 2 sticks. Butter weights are approximate.

Flower	Example butter amount	Butter weight	Estimated THC per teaspoon
1 g	2 tablespoons (1/8 cup)	28 g	30 mg
2 g	4 tablespoons (1/4 cup)	57 g	30 mg
3.5 g (an eighth)	8 tablespoons (1/2 cup)	113 g	26 mg
7 g (a quarter ounce)	16 tablespoons (1 cup)	227 g	26 mg

The same 20% THC and 90% decarb assumptions apply, with finished yield equal to the listed butter amount. For comparison, 3.5 g in a full cup is about 13 mg per teaspoon, and 14 g in a full cup is about 53 mg per teaspoon. "Less concentrated" does not mean a whole teaspoon is a low dose.

Very small batches are harder to recover accurately because some butter stays in the plant material and strainer. Use a suitably small vessel and enough fat to wet the flower; if the batch is too concentrated for your recipe, mix it thoroughly with measured plain butter. For the cooking process, use our step-by-step cannabutter guide.

How to estimate THC per teaspoon

The planning formula is:

Estimated activated THC (mg) = flower grams x (THC percentage / 100) x 1,000 x decarb efficiency.

Estimated mg per teaspoon = estimated THC in the recovered butter / finished teaspoons of butter.

For the 2 g example: 2 x 0.20 x 1,000 x 0.90 = 360 mg. A quarter cup contains 12 teaspoons, so 360 / 12 = 30 mg per teaspoon before accounting for additional extraction losses. At 10% THC, the same example is 15 mg per teaspoon; at 25%, it is 37.5 mg.

The 90% figure is a planning assumption for decarboxylation, not a claim that 90% of the flower's THC reaches your butter. Infusion, straining and uneven mixing introduce more uncertainty. The decarboxylation guide explains activation; the potency-estimation guide explains why a homemade estimate can differ from the finished batch.

Choose the concentration for your recipe, not the other way around

Suppose a recipe uses 1/2 cup of butter and makes 24 equal pieces. If you use 1/2 cup of the example 7 g-per-cup infusion, the estimate is 630 mg across the recipe, or about 26 mg per piece. A familiar-looking cookie can contain much more THC than intended.

Plain butter lets you keep the recipe's fat content while reducing the infused portion. As an arithmetic example, 2 teaspoons of an estimated 30 mg-per-teaspoon infusion contain 60 mg. Add 22 teaspoons of plain butter to reach the recipe's 1/2 cup, mix evenly, then divide into 24 equal pieces: the estimate is 2.5 mg per piece. Actual potency and distribution can differ; this is not a guarantee of a safe dose.

Use the cannabis dosage calculator for your recipe's portions. Health Canada's edible-cannabis guidance advises people new to edibles to choose 2.5 mg THC or less and wait up to 4 hours for the full effects before taking more. Do not drive after consuming cannabis, and keep labeled infusions away from children and pets.

Does more flower always make stronger butter?

More flower can increase the potential THC available, but it does not guarantee a proportional increase in the finished infusion. There is no universal "one ounce per cup" saturation ceiling established by this guide. Flower potency, extraction conditions, mixing and recovered yield all affect the result.

Reducing butter increases concentration only if the same amount of THC is recovered. It does not create extra THC or solve poor extraction. Choose a batch you can mix and measure reliably rather than chasing the strongest possible butter.

What a batch of cannabutter actually costs

Compare the cost of a small batch with a full cup, keeping modeled yield separate from measured potency. These examples use flower at $10/g and butter at $3 per cup; energy, equipment and supplies are extra. The 2 g example costs $20 for flower plus $0.75 for butter.

Flower + butter	Batch cost	Estimated THC	Cost per mg
2 g + 1/4 cup	$20.75	360 mg	5.8 cents
3.5 g + 1 cup	$38	630 mg	6.0 cents
7 g + 1 cup	$73	1,260 mg	5.8 cents
14 g + 1 cup	$143	2,520 mg	5.7 cents

The estimates again use 20% THC and 90% decarb efficiency, before additional extraction losses. If less THC reaches the recovered butter, the real cost per mg is higher. Compare local flower prices and measured potency rather than assuming a stronger or more expensive flower is better value.

Store and label the batch you actually made

Label the container with the date, recovered butter amount and estimated potency. Refrigerate it, keep it separate from ordinary butter and portion it before freezing. Our cannabutter fridge and freezer storage guide explains storage and spoilage; the edibles storage guide covers finished baked goods.

Using oil instead? The same concentration arithmetic applies, but butter weights are not oil weights. See the cannabis coconut oil recipe and use the oil calculator for that batch.

FAQ

How much butter should I use for 2 grams of weed?

A small-batch example is 2 grams of flower with 1/4 US cup of butter: 4 tablespoons, about 57 g or half a US stick. With 20% THC flower and a 90% decarb assumption, that is an estimated 360 mg in the batch, or 30 mg per teaspoon if the finished yield is 1/4 cup. That is concentrated butter, not a single-serving recommendation. Using 1/2 cup instead halves the estimated concentration to 15 mg per teaspoon.

How much butter for 1 gram, 3.5 grams, or 7 grams?

Example batch ratios are 1 g of flower to 2 tablespoons of butter, 3.5 g to 1/2 cup, or 7 g to 1 cup. These are mixing ratios, not serving sizes. Choose the final concentration for your recipe and check the flower's THC percentage; the same ratio can produce very different potency.

Is a teaspoon of cannabutter a beginner dose?

Not necessarily. Even 3.5 g of 20% THC flower in a full cup of butter gives about 13 mg per teaspoon under the guide's assumptions. Measure by estimated milligrams, not spoonfuls, and remember homemade estimates are not lab results. Health Canada advises 2.5 mg THC or less for people new to edible cannabis and waiting up to 4 hours for the full effects before taking more.

Can I use less butter to make cannabutter stronger?

For the same amount of extracted THC, less finished butter means more THC per teaspoon. It does not create more THC in the batch. Too little fat can make it difficult to wet the flower and recover the infusion after straining; adding plain butter afterward is a simpler way to adjust concentration.

Is there a fixed maximum of one ounce of weed per cup of butter?

There is no universal flower-per-cup saturation limit established by this guide. Flower potency, extraction conditions and the amount of butter recovered all matter. Adding more flower does not guarantee proportionally stronger finished butter, and a ratio chart cannot establish the batch's actual THC content.

How much does a small batch of cannabutter cost?

At an illustrative $10 per gram of flower and $3 per cup of butter, 2 g with 1/4 cup costs about $20.75 before energy and supplies. Under the 20% THC and 90% decarb assumptions, the estimated 360 mg batch works out to about 5.8 cents per estimated mg. Extraction losses increase that cost; this is not a measured yield or a recommended serving.