What is Gold Price Per Gram?
Gold Price Per Gram is a free, ad-supported web tool that converts the live XAU/USD spot price into per-gram prices for 10K, 14K, 18K, 21K, 22K, and 24K gold, updated every 30 seconds. It covers three calculators: a single-item gold value calculator, a scrap calculator for multiple pieces across different karats, and a pawn shop estimator with an adjustable buyer-payout slider. Supporting tools include a hallmark lookup covering stamps from 333 to 999, a price history chart with daily OHLC data, and a methodology page that documents the exact constants used so any result can be verified independently. No signup is required.
Why Gold Price Per Gram works
Many gold price sites quote per troy ounce, a unit that does not match what most people actually own. Gold Price Per Gram converts the spot price directly to grams and karats, so a seller can enter the weight from a scale and the stamp from the jewellery and get a melt value tied to today's market rate. The payout slider and scrap calculator let sellers model a buyer's actual offer rather than comparing raw spot prices, and the methodology page shows every constant and step so the numbers are auditable rather than opaque.
Gold Price Per Gram features
- Live per-gram prices by karat. Spot price updates every 30 seconds and converts to per-gram figures for all six common karats from 10K to 24K, plus pennyweight and troy ounce views.
- Single-item gold value calculator. Enter a gross weight, subtract non-gold weight such as stones or clasps, select a karat, and set a buyer-payout percentage to see both melt value and estimated offer.
- Scrap gold calculator. Add multiple items across different karats and weights in one session, with a lot summary showing total fine gold, total melt value, and an estimated payout at any buyer percentage.
- Pawn shop estimator. Enter a weight and karat, then set the shop's quoted percentage of melt value to see the estimated offer next to the full melt value.
- Hallmark lookup and price history. A hallmark guide lists stamps from 333 to 999 with per-gram prices and common origins. A price history page shows charts and daily OHLC tables with CSV export.
Who Gold Price Per Gram is for
- People selling jewellery or scrap gold who want to know the melt value of a piece before visiting a pawn shop or refiner so they can evaluate any offer against the current spot price.
- People sorting a mixed pile of gold items across several karats who need one combined melt value without pricing each piece separately.
- Collectors and investors checking live per-gram prices in the unit they actually weigh and hold gold, rather than converting from troy ounces.
- People trying to identify a hallmark stamp on a piece of jewellery and see its karat, purity, and current per-gram price before deciding whether to sell.
Similar micro SaaS ideas you can build
- Scrap metal multi-material calculator. A calculator for sellers with mixed lots of gold, silver, and platinum that combines live spot prices across metals into one total melt value, monetized through display advertising or a paid bulk-export feature for dealers.
- Jewellery buyback price tracker. A tool for frequent sellers that logs past sales alongside the spot price on the day of sale so users can see whether they consistently got a fair percentage of melt, sold to independent sellers as a simple spreadsheet-backed web app.
- Gold savings tracker. An app for people buying small gold items over time that tracks accumulated fine-gold weight and current melt value against the purchase cost, sold as a one-time purchase or low-cost subscription for retail gold buyers.
