Luminus

Currency Converter

Convert between 28 world currencies with live, daily-updated exchange rates.

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Understand your result

Not sure what the numbers mean? Echo reads your result and explains it in plain words — then suggests a sensible next step.

Description

The Currency Converter translates amounts between world currencies using up-to-date exchange rates sourced from a free public API that refreshes daily. Enter an amount, select your source currency and target currency from a comprehensive list covering major, minor, and emerging-market currencies, and the tool returns the converted value instantly. You can swap the direction with one click to see the reverse conversion, and change either currency at any time without re-entering the amount. The rates displayed are mid-market reference rates — the midpoint between buy and sell prices on the interbank market — which represent the fairest benchmark before any bank or service adds its own markup or fees. This makes the converter ideal for checking the true value of a transfer before committing to a provider, comparing quoted rates from banks or remittance services against the real mid-market rate, budgeting for international travel, invoicing clients in foreign currencies, and doing quick sanity checks on e-commerce prices listed in another currency. The converter is useful for freelancers billing overseas clients, travelers planning expenses, importers and exporters estimating costs, finance students studying exchange rate mechanics, and anyone who regularly deals with more than one currency. While the exchange-rate lookup requires an internet connection, the conversion arithmetic itself runs in your browser and your amount is never logged or stored. The tool has no account requirement, no per-day conversion limit, and no hidden fees — it simply shows you the rate and the math. Bookmark it for quick access whenever you need a reliable, ad-light currency reference that respects your privacy and gives you the real mid-market number rather than a marked-up retail quote.

How to use

  1. Enter the amount you want to convert.
  2. Select the source currency and the target currency.
  3. Read the converted value using the latest available daily rate.
  4. Swap the currencies to convert in the other direction.

Why use this tool?

Whether you're budgeting a trip or checking an invoice, you need a quick, current conversion. This tool pulls daily reference rates so your numbers reflect the market rather than a stale figure.

Features

  • Live daily exchange rates from a free public feed.
  • Wide range of world currencies.
  • One-click swap between source and target.
  • Clear display of the rate used for the conversion.
  • Rates are indicative reference values, refreshed daily.

Formula & methodology

Conversions use a cross-rate through a common base currency: converted = amount × (rate_to / rate_from), where each rate is that currency's value against the base. When converting directly to or from the base, one of the rates is simply 1.

Frequently asked questions

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