Gold by DWT
Gold Pennyweight (DWT) Calculator
Free gold pennyweight (DWT) calculator. Estimate gold value per dwt at the live spot price for any karat - the jeweler's standard unit.
Use the calculatorAbout gold by pennyweight (dwt)
Pennyweight (dwt) is the traditional unit U.S. jewelers and gold buyers use for weighing jewelry. There are 20 pennyweights in a troy ounce, so one dwt is exactly 1/20th of a troy ounce, or about 1.555 grams.
This calculator lets you weigh in pennyweight directly. Enter the dwt, choose the karat, and it applies the live gold spot price - no manual conversion needed.
Worked example at an illustrative gold spot of $4,000.00 per troy ounce (use the live price above for current figures):
How to calculate gold by pennyweight (dwt) value
- Weigh the item. Use a digital gram or pennyweight scale. Heavier, solid pieces give the most reliable estimate.
- Select the metal and purity. Pick gold, silver, or platinum, then choose the karat or fineness. Use Custom to enter an exact percentage.
- Confirm the live spot price. The calculator fills in the current spot price automatically. Edit it if you use a different quote.
- Calculate and adjust payout. Press Calculate to see the melt value, then move the payout slider to model a buying offer.
Gold Pennyweight (DWT) Calculator questions
How much is a pennyweight of gold worth?
One dwt of pure gold is worth spot ? 20. At a $4,000 spot that is about $200 per dwt for 24K, or about $116.60 per dwt for 14K (? 0.583).
How many grams is a pennyweight?
One pennyweight is about 1.55517 grams, and there are 20 dwt in a troy ounce.
Why do jewelers use pennyweight instead of grams?
It is a long-standing trade convention in North America. Pennyweight maps cleanly to the troy ounce (20 dwt = 1 ozt) used to quote gold.
Can I switch between dwt and grams?
Yes. The unit dropdown in the calculator converts between grams, pennyweight, and troy ounces instantly.