Gold Calculator Blog

How Gold Price Per Gram Is Calculated

The full method: troy ounce to gram, karat purity to decimal, and the three mistakes that throw estimates off by 10-40%.

A repeatable process for pricing a mixed bag of broken jewelry, from sorting by karat to walking in with a documented number.

What each karat contains, what it is worth per gram at the same spot price, and which one actually suits what you own.

Exact conversion factors for every unit gold is traded in, and the ounce mix-up that inflates estimates by nearly 10%.

Where the gap between melt value and your cash offer actually goes, and the percentage bands that count as fair by buyer type.

The five places you can sell gold, what each typically pays, and the preparation that moves an offer by 20-40%.

What each home test actually proves, which ones are worthless, and the two that will not lie to you.

A complete decoder for the numbers and letters stamped on gold, including the marks that mean it is not gold at all.

18K holds 28.6% more gold per gram. 14K survives daily wear better. Here is how to decide which matters more.