Cannabis Weights and Prices Explained: Grams, Eighths, Ounces and Pounds

An ounce of cannabis is 28 grams, a half-ounce is 14g, a quarter is 7g and an eighth is 3.5g. Price per gram drops sharply as quantity rises — buying an ounce typically costs 40–60% less per gram than buying single grams. A pound is 448–454g, made up of 16 ounces.

The complete weight conversion table

Common name	Grams	Ounces	Approx. joints (0.5g)
Gram	1g	0.035 oz	2
Eighth	3.5g	1/8 once	7
Quarter	7g	1/4 once	14
Half ounce	14g	1/2 once	28
Ounce	28g	1 once	56
Quarter pound (QP)	113g	4 oz	226
Half pound (HP)	227g	8 oz	454
Pound	454g	16 oz	908

A technical note: a true imperial ounce is 28.35g, but the cannabis industry universally rounds to 28g. Similarly a pound is 453.6g, commonly sold as 448g (16 × 28g). Both conventions are standard and not a shortfall.

How the price per gram scales

Exact prices vary by grade and retailer, but the shape of the discount is consistent across the industry:

Quantity	Typical price/gram vs. single gram	Why
1g	Baseline (highest)	Packaging and handling cost spread over 1g
3.5g	~20–30% lower	Standard retail unit
7g	~30–40% lower	Fewer transactions per gram
14g	~40–50% lower	Bulk handling begins
28g	~45–60% lower	Standard bulk unit
113g+	~60–75% lower	Wholesale tier

The economics are straightforward: packaging, labour, payment processing and livraison cost roughly the same whether a customer buys 1g or 28g. Larger orders spread those fixed costs across more product.

How long does each quantity last?

Based on typical consumption patterns:

Usage	Approx. per week	An eighth lasts	An ounce lasts
Occasional (1–2×/week)	~1g	3–4 weeks	~6 months
Moderate (3–4×/week)	~3.5g	~1 week	~8 weeks
Daily (once)	~5–7g	3–4 days	4–5 weeks
Heavy daily	~14g+	1–2 days	~2 weeks

The freshness constraint matters more than the discount. If an ounce would take you six months to finish, a half-ounce bought twice is often the better purchase — you drink the savings back in quality. Properly stored flower holds up for around six months; beyond that, terpenes fade noticeably.

Ways to lower cost per gram beyond quantity

• Smalls. Smaller buds from the same plants as full-size flower — identical strain, potency and terpenes, priced lower purely for size. If you grind anyway, this is essentially free savings.
• Value grades. AA and AAA cost substantially less than AAAA, and the practical gap narrows once ground.
• Mix-and-match ounces. Build a 28g order from several strains at ounce pricing — variety without losing the discount.
• Ounce specials and BOGO deals. Rotating offers frequently beat standard bulk pricing.
• Shake and popcorn. Smaller fragments at the lowest per-gram cost; fine for edibles or casual smoking.

Yield: what you actually get

• Joints: a 0.5g joint from an eighth yields about 7; a 1g joint yields about 3–4.
• Bowls: a typical bowl holds 0.25–0.5g, so an eighth gives roughly 7–14 bowls.
• Edibles: 7g of 20% flower contains roughly 1,400mg THC before losses. Realistic infusion efficiency is 50–70%, so expect 700–1,000mg of usable THC.
• Loss to grinding and handling: budget 3–5% as kief and residue. A grinder with a kief catch recovers some of it.

Buying checklist

1. Work out your realistic weekly consumption in grams.
2. Buy about three months’ worth — the sweet spot between price and freshness.
3. Choose grade by use case: AAAA to savour, AAA for everyday, AA for volume or edibles.
4. Check whether smalls are available in the strain you want.
5. Split the purchase into multiple sealed jars with humidity packs on arrival.

Questions fréquemment posées

How many grams are in an ounce of herbe?
28 grams. A half-ounce is 14g, a quarter is 7g and an eighth is 3.5g.

How many joints are in an ounce?
Roughly 56 at half a gram each, or about 28 at a full gram each.

Why is buying an ounce cheaper per gram?
Fixed packaging, handling and delivery costs are spread across far more product.

How long does an ounce last?
About 4–5 weeks for a daily user, 8 weeks for moderate use, and several months for occasional use.

What is a QP of weed?
A quarter pound — 113 grams, or four ounces.

Are smalls worth buying?
Yes if you grind your flower. Same plants, same potency, lower price; the only difference is bud size.

Is an ounce 28 or 28.35 grams?
Technically 28.35g, but the industry standard is 28g. That rounding is normal, not short weight.

Shop by weight with same-day Toronto delivery

Tropic Exotic sells from single grams to full pounds. Compare ounce specials for the best per-gram value, browse all flower, or go wholesale with bulk orders. Same-day delivery across Toronto and the GTA.