MyCalcToolkit
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Currency Converter

Convert between 30+ world currencies with live exchange rates. Swap currencies instantly and see both directions. Works offline with fallback rates.

Converted Amount

920.00 EUR

1,000 USD = 920.00 EUR

Exchange Rate

1 USD = 0.9200 EUR

Inverse Rate

1 EUR = 1.0870 USD

Using fallback exchange rates. Rates may not reflect current market values.

How the Currency Converter Works

This converter fetches live mid-market exchange rates from a reliable API and performs cross-rate calculations. If the API is unavailable, it falls back to stored rates to ensure the tool always works โ€” even offline.

Conversion Formula

Converted Amount = Amount ร— (Target Rate รท Source Rate)

Source Rate = Exchange rate of your starting currency vs USD

Target Rate = Exchange rate of your target currency vs USD

Cross rate = Target/Source when neither currency is USD

Example: USD to EUR

  • Amount: $1,000 USD
  • EUR/USD rate: 0.92 (1 USD = 0.92 EUR)
  • Result: โ‚ฌ920.00 EUR

Tips for Currency Conversion

  • Mid-market rates shown here are reference rates โ€” actual exchange may differ by 1-5%
  • Compare at least 3 money transfer services before sending large amounts
  • Avoid airport currency exchanges โ€” they typically have the worst rates
  • Consider rate trends if you can time a large conversion
  • Digital services (Wise, Revolut) often offer rates closest to mid-market
  • For travel, a no-foreign-transaction-fee credit card often gives near-market rates

Frequently Asked Questions

How are exchange rates determined?

Exchange rates are set by the foreign exchange (forex) market based on supply and demand for currencies. Factors include interest rates, inflation, economic growth, political stability, and trade balances. Rates fluctuate continuously during market hours (24/5). Central banks can also intervene to stabilize rates.

What are fallback rates and when are they used?

Fallback rates are pre-stored exchange rates used when the live rate API is unavailable (network issues, API downtime, or rate limits). They provide approximate conversions so the tool remains functional offline. Fallback rates are updated periodically but may not reflect real-time market movements.

What currencies does this converter support?

This converter supports 30+ major world currencies including USD, EUR, GBP, JPY, AUD, CAD, CHF, CNY, INR, BRL, MXN, KRW, SGD, HKD, SEK, NOK, DKK, NZD, ZAR, and more. It covers all G20 currencies and the most commonly traded forex pairs.

What is the difference between bid, ask, and mid-market rates?

The bid rate is what buyers will pay for a currency; the ask rate is what sellers want. The mid-market rate is the midpoint between bid and ask โ€” this is the "real" exchange rate. Banks and services add a spread (markup) above mid-market. This calculator uses mid-market rates for transparent conversions.

Why does the rate I get at a bank differ from this calculator?

Banks and money transfer services add a markup (spread) of 1-5% above the mid-market rate, plus they may charge flat fees. Airport exchanges have the worst rates (5-10% markup). For the best rates, compare services like Wise, Revolut, or your bank. This calculator shows the mid-market rate as a reference.

How often are exchange rates updated?

When connected to the internet, rates are fetched from a live API and reflect near real-time market data (updated every few minutes). The forex market operates 24 hours from Sunday 5 PM ET to Friday 5 PM ET. Weekend rates remain fixed at Friday closing levels.

What is a currency pair and how do I read it?

A currency pair shows the relative value of two currencies. EUR/USD = 1.08 means 1 Euro buys 1.08 US Dollars. The first currency (base) is what you have; the second (quote) is what you get. To reverse: USD/EUR = 1 รท 1.08 = 0.926.