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How Much Is an Eighth in Grams? Get the Exact Weight

Short answer

An eighth of cannabis weighs exactly 3.5 grams. That's one-eighth of an ounce, and it's a standard purchase size at dispensaries like Farmer's Choice in New Paltz. Knowing this helps you compare prices and choose the right amount.

Last updated Sep 4, 2026 · Published by Farmer's Choice · Citation License 1.0

Exactly How Many Grams Are in an Eighth of Cannabis?

An eighth of cannabis weighs exactly 3.5 grams. That's one-eighth of an ounce (28 grams ÷ 8 = 3.5). This is the most common purchase size at dispensaries because it balances quantity and cost for most people.

UnitGramsOuncesCommon Use
1 gram1 g0.035 ozSample a strain or a single session
Eighth3.5 g0.125 oz (1/8)Standard personal purchase
Quarter7 g0.25 oz (1/4)Regular users, better value
Half ounce14 g0.5 ozFrequent users, bulk savings
Ounce28 g1 ozHeavy users, best price per gram

When you buy an eighth at a dispensary, you're getting exactly 3.5 grams—no more, no less. At Farmer's Choice in New Paltz, our Farm Hands can show you different strains in this size so you know exactly what you're taking home.

Eighth vs. Quarter vs. Half Ounce: Weight Comparison

Knowing how an eighth compares to other sizes helps you decide what to buy. Here's a quick breakdown:

AmountGramsApprox. Joints*Best For
Eighth3.5 g7–10Casual to moderate users
Quarter7 g14–20Regular users who want a week's supply
Half ounce14 g28–40Frequent users, better value
Ounce28 g56–80Heavy users or sharing

*Joint count varies by size and how you roll. An eighth is a sweet spot for many—enough to explore a few strains without committing to a large amount. If you're new to buying, our Farm Hands can help you gauge what fits your habits.

Calculate Price Per Gram for an Eighth: Is It Worth It?

To see if an eighth is a good deal, divide the price by 3.5. For example, if an eighth costs $35, that's $10 per gram. Prices vary by quality, strain, and location, but an eighth often offers better value than buying single grams.

FactorWhy It MattersTypical Range*
Strain typePremium or exotic strains cost moreVaries by product
QualityLab-tested, top-shelf flower commands higher pricesVaries
LocationDispensary prices reflect local marketVaries
Purchase sizeLarger amounts usually lower price per gramEighth vs. ounce

*Prices at Farmer's Choice vary by product; ask our team for current options. We carry flower from licensed New York producers, so you know exactly what you're paying for. If you're comparing, an eighth is often the best balance of cost and quantity for most people.

For details on services and visits, see the main page about cannabis dispensary new paltz.

Directions to our cannabis dispensary in New Paltz from New Paltz High School

Start at New Paltz High School and head to Farmer's Choice at 1 Old Route 299, New Paltz, NY 12561.

Sources

Frequently asked questions

How many grams are in a quarter of cannabis?

A quarter is 7 grams, which is double an eighth. It's a good step up if you find an eighth runs out too quickly.

Is an eighth enough for a week?

For many casual users, 3.5 grams can last a week, depending on how often you use. Regular users might go through it faster.

Can I buy just a gram at a dispensary?

Yes, most dispensaries, including Farmer's Choice, sell single grams. It's a great way to sample a strain before committing to an eighth.

Also asked as

  • What is the weight of an eighth in grams?
  • How many grams are in an eighth of weed?
  • Is an eighth 3.5 grams?