THE COLLECTOR’S TIME MACHINE
Metal through time.
A small stack. A different year. Explore how the value of the metal itself has changed.
Every number needs a source.
Choose your inputs above. Verified historical data or your own two prices will give this story its numbers.
Estimated metal value
Not your realized investment return.
Two value snapshots on the same zero-based scale. This is not a price-history chart.
See the calculation and source observations
A CLEARER PICTURE
Metal value.
Nothing hidden.
Understand the two moments.
A historical annual average is a reference for an entire year, not the price on the day you bought. A latest monthly average is dated historical data, never a live spot quote.
Keep the metal in focus.
Quantity held keeps your fine-metal weight constant. Amount spent estimates a hypothetical fine-metal quantity. Neither mode includes collectible premiums, dealer spreads, fees, shipping, taxes, storage, condition, or selling costs.
Get the units right.
A troy ounce is 31.1034768 grams. An ordinary pound is 453.59237 grams. Fineness is applied only to gross alloy weight. Values are nominal US dollars, without inflation or exchange-rate adjustments.
Data provenance, refresh policy & privacy
World Bank Commodity Price Data (The Pink Sheet). Annual averages: 1960–2025. Comparison: October 2026 monthly average, published November 3, 2026; retrieved November 4, 2026. This is a reviewed snapshot, not a live feed.
Adapted by Collect Silver from World Bank data and the original providers listed below. Source observations are unchanged; calculations and unit conversions are ours. No World Bank endorsement is implied.
World Bank commodity data · Dataset catalog · CC BY 4.0 · World Bank terms
Copper: Copper (LME), grade A, minimum 99.9935% purity, cathodes and wire bar shapes, settlement price. Sources: Bloomberg Finance L.P.; Engineering and Mining Journal; Platts Metals Week; Thomson Reuters Datastream; World Bank.
Gold: Gold, spot average of daily rates, from June 2025; previously (UK), 99.5% fine, London afternoon fixing, average of daily rates. Sources: Bloomberg Finance L.P.; Kitco.com; International Monetary Fund, International Financial Statistics; London Bullion Market; Metals Week; Platts Metals Week; Shearson Lehman Brothers, Metal Market Weekly Review; Thomson Reuters Datastream; World Bank.
Platinum: Platinum, 99.95% minimum purity, plate or ingot form, spot average of daily rates, from June 2025; previously, (UK), 99.9% refined, London afternoon fixing. Sources: Bloomberg Finance L.P.; London Platinum & Palladium Market; Platts Metals Week, CRB Commodity Yearbook; Thomson Reuters Datastream; World Bank.
Silver: Silver (UK), 99.9% refined, London afternoon fixing; prior to July 1976 Handy & Harman. Grade prior to 1962 unrefined silver.. Sources: American Metal Market; Australian Mineral Economics Pty. Ltd.; Bloomberg Finance L.P.; London Bullion Market; Metals Week; Metals Statistics; Platts Metasl Week; The Silver Institute, Silver World Supply & Demand; Thomson Reuters Datastream; World Bank.
Gold and platinum benchmark definitions change from June 2025; early silver definitions also differ. General World Bank terms include third-party caveats; no specific exception for these four series was found in the catalog or source workbooks. Dataset reuse does not grant access to the underlying provider feeds.
Calculations stay in your browser. This calculator sets no cookies and sends no analytics. It loads a data snapshot from this website. The theme button saves your appearance choice in this browser, using the same preference as the rest of the site. Your calculation inputs are not stored or uploaded. Creating a share link puts your selected amounts and prices into its URL fragment. Anyone you send the link to can read those inputs. Do not share information you want to keep private.
Values are rounded only for display. This tool is educational, not a valuation, trading quote, authentication service, or financial advice. Past price changes do not predict future prices.