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Field Guide 07 · The limits

How much weed can you buy at once?

Straight answer

The most common limit is 1 ounce of flower per trip, about 28 grams or eight eighths (8 of the 20 adult-use states on Alexis 420). The range runs from 1/2 oz in Connecticut to 3 oz in Missouri and New York. Concentrates and edibles get their own smaller caps, and some states count everything against one limit. The register does the math for you.

By Alexis 420October 18, 20266 min read
Alexis gesturing toward the page
Alexis is AI-generated.
01

Your state's limit, drawn

Pick a state. Each jar is an eighth (3.5 grams), the most common size on the shelf.

Pick a state to see its flower limit in eighths, plus the caps on concentrates and edibles.

02

Build a cart

Tap items into your bag and watch the limit fill. Go over, and the register would stop you.

Your bag is empty.

Alexis holding a small glass jar of flower at a dispensary counter
Eight eighths make an ounce. That's the cap in a lot of states.Alexis 420, on purchase limits
AI image
03

The map

Adult-use flower limits by state. The darker the gold, the more you can buy in one go.

Tap a stateAdult-use flower purchase limits by state
  • Under 1 oz
  • 1 oz
  • 1.5 to 2 oz
  • 2.5 oz
  • 3 oz
  • No adult-use sales
04

Sizes, decoded

Gram1 g · A gram, a pre-roll
Eighth3.5 g · 1/8 oz
Quarter7 g · 1/4 oz, a quad
Half14 g · 1/2 oz, a half
Ounce28 g · 1 oz, a zip

Pre-rolls are usually half a gram or a gram. A vape cart is typically half a gram or a gram of oil, and it counts as concentrate. Edibles are counted in milligrams of THC, usually 5 to 10 mg a serving and 100 mg a pack.

Alexis of Alexis 420
Alexis saysAn ounce is a lot. If it's your first time, an eighth or a couple of pre-rolls is plenty.
05

How limits really work

  • Per transaction or per day. Some states cap each sale, others cap what you buy in a day. A few only say you can't be sold past the legal possession limit.
  • One cap or several. In states like Colorado, Massachusetts and New Jersey, flower, concentrate and edibles are equivalents of one limit, so a cart and an eighth both eat into it. In others, like California and Minnesota, each type gets its own cap.
  • The register tracks it. Licensed stores log every sale. You don't need to do the math, but you do need to know the bag can't be bigger than the law.
  • Patients often get more. Medical limits are usually higher. Here's rec vs. medical.

Visiting? Illinois is the one state that gives visitors a smaller limit. The rest are in where tourists can buy. First trip ever? Read first time at a dispensary.

Quick answers

People also ask

How much weed can you buy at a dispensary?

The most common adult-use limit is 1 ounce of flower per transaction or per day. Missouri and New York allow up to 3 ounces; Connecticut caps a sale at half an ounce. Concentrates and edibles have their own caps.

How many grams is an eighth?

An eighth of an ounce is 3.5 grams. Eight eighths make an ounce, about 28 grams.

How many carts can you buy at once?

It depends on the state's concentrate limit, because vape carts count as concentrate and most hold 0.5 or 1 gram. California and Minnesota allow 8 g a day or sale, so about 8 one-gram carts; New Jersey allows 4 g; Missouri allows 24 g.

Do edibles and vapes count toward the limit?

Yes. States cap concentrates (including vape carts) in grams and edibles in milligrams of THC. In some, like Colorado and Massachusetts, all of it counts against one shared limit.

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