Exchange rates move every day, so a rate you saw last week is a poor guide for a price you are quoting today. Kwebby's Currency Converter turns an amount in one currency into another. The menus put 15 popular currencies, including USD, EUR, GBP, INR, JPY, and AUD, at the top, followed by every other currency in the rate feed (166 codes when we checked). Enter an amount, pick a From and a To currency, and click Convert. This page does not print any exchange rates, because every rate on it would go out of date.
Key Takeaways
- Kwebby's Currency Converter has an Amount box, a From menu, a swap button, a To menu, and a Convert button.
- The menus list 15 popular currencies first (USD, EUR, GBP, CAD, AUD, INR, JPY, CNY, CHF, SGD, AED, PKR, MXN, BRL, and KRW), then every other currency in the feed, more than 160 in total.
- Rates come from the free feed of ExchangeRate-API, which updates once a day. The page shows when the rates were last updated and states they are not suitable for financial transactions, so treat results as reference figures.
- Converted amount = your amount multiplied by the rate for that pair. Rates change, so a result is only correct for the moment it was calculated.
- A bank, card, or transfer service adds a fee or a markup, so what you actually receive is usually less than the converter shows.
- The tool is free and needs no account.
What Is the Kwebby Currency Converter?
Kwebby's Currency Converter is a free online tool that converts an amount from one currency to another using published exchange rates. You choose the amount and the two currencies, and the page returns the converted value. It suits travel budgets, price checks on overseas stores, quotes for international clients, and quick comparisons.
Currencies are identified by three-letter codes, such as USD for the US dollar and EUR for the euro. These are the codes that appear in the From and To menus.
Key Features and How It Works
Amount, From, To, and Convert
The Amount box takes the number to convert, and decimals are allowed. The From menu sets the currency you hold, and the To menu sets the currency you want. The swap button between them reverses the pair. The Convert button, or the Enter key, runs the calculation. The result shows the converted amount to up to four decimal places and the rate for one unit to six decimal places. If the rate feed is down, the page shows an error message instead of a result.
160+ Currencies, Popular Ones First
Both menus list the same currencies, each with its code and name. The first group holds these 15 popular currencies:
| Region | Currencies |
|---|---|
| Americas | USD, CAD, MXN, BRL |
| Europe | EUR, GBP, CHF |
| Asia and the Pacific | JPY, CNY, INR, SGD, KRW, PKR, AUD |
| Middle East | AED |
The second group lists every other code in the rate feed in alphabetical order, 166 codes in total when we checked. If the full list cannot load, the menus fall back to the 15 popular currencies.
The Rate Source
Rates come from open.er-api.com, the free open access feed of ExchangeRate-API, and the page carries the provider's "Rates By Exchange Rate API" credit link. The provider's documentation says the free feed updates once per day, so a displayed rate can be up to a day old. Kwebby's server caches the feed for up to an hour and calculates every pair from the US dollar rates. Below the result, the page shows when the rates were last updated and when the next update is due, in UTC. Use the results for planning and estimates, not for settling a payment.
Free and Simple
The page states that the tool is free and that no account is needed. A "Report if not working" button sits on the page if a result looks wrong.
Why Converting at a Reference Rate Matters
Prices abroad mean little until you see them in your own currency. A hotel at 12,000 yen, a software plan at 49 euros, or a freelance quote at 80,000 rupees all need translating before you can compare them.
The next problem is that there is no single exchange rate. A reference rate is a market midpoint. Banks, card networks, and transfer services quote their own rates, often with a markup. Wise, for example, describes the mid-market rate as the rate without a markup and says banks and traditional providers often add costs by marking up the exchange rate.
The Formula
Converted amount = amount × rate. The rate tells you how many units of the To currency one unit of the From currency buys. Here is a worked example with a made-up rate and fictional currencies, so it cannot be mistaken for a real quote:
| Step | Example |
|---|---|
| Amount | 250 units of currency A |
| Made-up rate | 1 A = 0.80 B |
| Result | 250 × 0.80 = 200 units of currency B |
| Reverse rate | 1 ÷ 0.80 = 1.25 A per 1 B |
Many converters store every rate against one base currency and calculate other pairs by dividing one rate by another. The calculation gives the cross rate for that pair.
How to Use the Currency Converter
Follow these steps.
- Enter the amount. Type the number you want to convert in the Amount box.
- Choose the From currency. Select the currency you hold.
- Choose the To currency. Select the currency you want to see.
- Click Convert. The page shows the converted value.
- Add a margin for fees. Compare the result with the quote from your bank, card, or transfer service, and expect the final figure to be lower.
Best Practices for Currency Conversion
Treat the Result as a Reference
The page itself says the rates are not suitable for financial transactions. Use the output to plan a budget or compare prices. Confirm the exact rate with your provider before you send or exchange money.
Compare the Amount You Receive
The U.S. Consumer Financial Protection Bureau says that before you pay for a money transfer, you must see the exchange rate, the fees and taxes, and the amount that will be received. Compare that last line across providers. A good headline rate with a high fee can cost more than a modest rate with no fee.
Convert Again Before You Pay
If you check a price today and pay next week, run the conversion again on the day. Rates drift, and a small change adds up on a large amount.
Round at the End
Keep full precision while you work and round only the final figure. Rounding each step introduces small errors.
Common mistakes to avoid:
- Using an old screenshot of a rate.
- Mixing up the From and To menus, which gives the inverse result. Check the pair before you copy a figure.
- Ignoring card or transfer fees.
- Using a reference rate to set a contract price without a rate-change clause.
Common Use Cases
Travel Budgets
Convert your daily budget into the local currency before a trip, and convert big purchases back to your own currency to check what they cost.
Online Shopping
Check the home-currency price of a product from a foreign store. Remember that your card may add a fee on top.
Freelancers and Agencies
Translate a quote or invoice into a client's currency. If you earn from ads, the AdSense Calculator estimates earnings that you can then convert.
Business Reporting
Convert amounts into one currency before you total them. The Average Calculator can then find the mean or median of the converted figures.
Crypto Holdings
Use the Bitcoin Price Calculator to value a coin in a fiat currency, then move that figure into another currency here.
Related Kwebby Tools
The Currency Converter is part of Kwebby's Calculators and Utilities collection. These tools work well with it:
- Bitcoin Price Calculator converts BTC, ETH, BNB, SOL, and XRP into fiat currencies.
- AdSense Calculator estimates ad revenue from traffic.
- Average Calculator finds the mean, median, and mode of a list of numbers.
- Numbers to Words writes an amount out in words for invoices and contracts.
Frequently Asked Questions (FAQs)
How does a currency converter work?
It multiplies the amount you enter by the exchange rate for the pair of currencies you choose. Kwebby's converter gets its rates from open.er-api.com and returns the result when you click Convert.
How often are the exchange rates updated?
The rates come from open.er-api.com, the free feed of ExchangeRate-API. Its provider says the free feed updates once per day, so a rate can be up to a day old. The page shows the time of the last update. Rates move all the time, which is why the page says results are not suitable for financial transactions.
Which currencies can I convert?
Every currency in the rate feed, more than 160 codes. The 15 popular ones (USD, EUR, GBP, CAD, AUD, INR, JPY, CNY, CHF, SGD, AED, PKR, MXN, BRL, and KRW) sit at the top of both menus. Any of them can be the From or the To currency.
Why is the rate different from my bank's?
Banks and transfer services use their own rates, which often include a markup, and they may add fees. A reference rate, like the one this tool uses, does not include those costs. Compare the final amount you would receive, since the rate is only part of the cost.
Are these rates safe to use for payments?
No. The page states that the rates are not suitable for financial transactions. Use them for estimates, and get an exact quote from your bank or payment provider before you move money.
Is the currency converter free?
Yes. The tool is free and needs no account.
Final Thoughts
A currency converter gives you a fast, rough answer, and that is the right way to use it. Kwebby's tool converts between more than 160 currencies from a free daily rate feed, so it works well for budgets, price checks, and quotes. Run your conversion, remember that rates change, and confirm the exact figure with your bank or payment provider before you pay. For more number and money tools, browse the Calculators and Utilities collection.