Random World Currency

Every Currency Has a Code

The ISO 4217 standard assigns a unique three-letter code to every currency in the world. The first two letters typically match the country's ISO 3166 code, and the third letter is the currency initial: USD is the United States Dollar, JPY is the Japanese Yen, GBP is the Great British Pound. The standard also includes codes for precious metals (XAU for gold, XAG for silver) and supranational currencies (EUR for the Euro, XOF for the West African CFA franc shared by eight nations). Your browser recognizes approximately 160 of these codes through its built-in Intl API.

Zero Shipped Data

This tool ships no currency database. Every code, name, and symbol is resolved by Intl.supportedValuesOf('currency') and Intl.DisplayNames, APIs built into your browser as part of the JavaScript internationalization standard. The browser vendor maintains the data. When a country redenominates its currency (as Mauritania did in 2018, changing from MRO to MRU), browser updates carry the change automatically. This page delivers the generation logic. Your browser supplies the knowledge.

Collecting Currencies

How many draws until you have seen every available currency? The answer follows the coupon collector's problem. For N currencies, the expected number of draws is N × H(N), where H(N) is the Nth harmonic number. With approximately 160 currencies, you need roughly 160 × 5.66 ≈ 905 draws to expect a complete set. The first 100 unique currencies arrive in about 200 draws. The last 10 take another 250. The coverage chart above tracks your progress toward a complete collection.

Surprising Discoveries

Drawing currencies at random surfaces names most people have never encountered. The Bhutanese Ngultrum (BTN), the Vanuatu Vatu (VUV), the Swazi Lilangeni (SZL), and Chile's Unidad de Fomento (CLF, a daily inflation-indexed unit used alongside the peso) each tell a story about economic history, colonial legacy, and monetary policy. The tool becomes a casual geography lesson. Each draw is an invitation to learn about a country's economic identity.

In the Classroom

Economics and geography teachers can use this tool as a warm-up exercise: draw a random currency at the start of class, locate the country on a map, and discuss one fact about its economy. Over a semester, the collection grid fills up, and students build a visual map of the world's monetary systems. The tool runs entirely in the browser, requires no accounts, stores no student data, and works on any device with a modern browser.

Private by Architecture

The server delivers this page. Your browser supplies the currency data and generates every random selection. Your draw history lives in localStorage on your device. The server keeps no accounts, stores no results, and sets no tracking cookies.