A “zip” is common cannabis slang for about 28 grams , i.e., roughly one ounce of weed.

Quick Scoop: What is a “zip”?

In most forum discussions and guides, a zip means an ounce of cannabis, and an ounce is standardized at about 28 grams in everyday use. Some sources note the more exact ounce conversion (28.35 grams), but when people say “a zip,” they almost always round it to 28 grams.

In casual convo:
“Copped a zip” ≈ bought an ounce ≈ ~28 g.

How many grams is a zip?

  • 1 zip ≈ 28 grams of cannabis.
  • 2 zips ≈ 56 grams.
  • 16 zips ≈ 1 pound (448 grams).

Many cannabis sites and glossaries agree on this 28 g convention, and it’s how prices, limits, and forum talk usually line up.

How a zip breaks down

People often explain a zip by splitting it into smaller standard amounts:

  • 1 zip = 8 “eighths” (3.5 g each)
  • 1 zip = 4 “quarters” (7 g each)
  • 1 zip = 2 “halves” (14 g each)

So if someone says they grabbed an eighth , they mean about 3.5 g, and eight of those make up a full zip (28 g).

Why this slang matters

Knowing that “zip = ~28 g” helps in a few ways:

  • Clearer pricing: You can quickly compare cost per gram or per eighth.
  • Legal limits: Many legal markets set purchase/possession limits around an ounce (a zip) per day or per transaction.
  • Avoid confusion: Slang varies, but the 28 g meaning is widely used in online forums and shop blogs.

TL;DR:
If you’re asking “how many grams is a zip?” the practical answer almost everywhere is: 28 grams.

Information gathered from public forums or data available on the internet and portrayed here.