Gold value calculator

Calculate an estimated gold content value using weight, unit, karat and a transparent USD-per-troy-ounce reference.

Gold value estimateLoading market reference…

Gold details

Enter the weight and hallmark. Buyer offer is optional.

Weight

Gold purity

Non-gold weight

grams

Optional buyer offer

Market reference

$USD / troy oz

You can replace this number

Metal content estimate before buyer costs.

Reference valueNot a purchase offer

Pure gold content0 g

Value per item gram$0

70% payout reference$0

90% payout reference$0

For collectible coins, branded jewelry, antiques or gemstones, metal value may be only one part of total value.

Karat describes how much pure gold is present in an alloy. Select the hallmark stamped on the item when available.

Weight in grams × purity × (USD gold price per troy ounce ÷ 31.1034768)

The result estimates only the contained gold value. It does not establish the retail price, resale price or amount a buyer must pay.

Use a calibrated scale, verify the hallmark, subtract stones and non-gold parts, and confirm the displayed market reference before making a decision.