8K gold melt value calculator
Short answer
8K gold is 33.3 % pure gold (7.99 karat): 0.333 g of fine gold in every gram. Melt value is the weight of metal × 0.333 × the spot price per gram.
8K gold melt value calculator
Enter a weight and a stamp to see the sum.
Today's spot price: LBMA precious metal prices, Kitco live gold or your own dealer's quote. This page never contacts a price service.
Worked examples, with an example price
These figures use the example price of $4,046.30 per troy ounce, a snapshot of 2026-11-10 (source: api.gold-api.com). It is not a live price. Each row was computed by the same engine as the calculator.
| Weight | Fine gold | Melt value (example) |
|---|---|---|
| 1 g | 0.333 g | $43.32 |
| 2 g | 0.666 g | $86.64 |
| 5 g | 1.665 g | $216.60 |
| 10 g | 3.33 g | $433.20 |
| 20 g | 6.66 g | $866.41 |
| 1 troy ounce (31.1035 g) | 10.3575 g | $1,347.42 |
Reading the stamp
See what 8K means on jewelry. A stamp is a statement, not proof: confirm with an assay if the money matters.
Other melt-value pages
9K gold · 10K gold · 14K gold · 18K gold · 22K gold · 24K gold · sterling silver 925 · 800 silver · fine silver 999 · platinum 950 · palladium 950
Frequently asked
How much fine gold is in 8K gold?
0.333 g of fine gold per gram of metal (33.3 %).
How do I calculate the melt value of 8K gold?
Weight of metal × 0.333 × spot price per gram. The spot price per gram is the price per troy ounce divided by 31.1034768. It is melt value, not an appraisal.
How many grams is a pennyweight?
1 dwt = 1.55517384 g exactly (1/20 of a troy ounce).
Sources
- Arithmetic: karats / 24 × 1000 (no external source)
All sources are listed with the method on the sources page.