We start with a conversion scale of 3.5 grams to an eighth. That makes it easy to solve, how many grams in an ounce? If an ounce is eight eighths, that’s 3.5 grams x 8, or 28 grams in an ounce ...

Now you know how to convert ounces of weed to pounds and, importantly, converting to grams. That last conversion will be crucial for using a good digital scale to accurately measure your weed.

One troy ounce is equal to 31.1034768 grams, and 12 troy ounces make up one troy pound. Instead of oz, which represents the avoirdupois ounces, the abbreviation for a troy ounce is ozt.

A troy ounce is a unit of measurement for precious metal weight that dates to the Middle Ages. One troy ounce is equal to 31.10 grams.