Currency Converter Calculator
Convert between two currencies using the exchange rate you enter, in both directions.
Last updated · View algorithm, constants and default inputs (JSON)
About this calculator
Exchange rates move constantly, so this converter uses the rate you supply rather than a stored one — useful for checking a rate you were quoted, or for planning at a fixed budget rate.
Worked example
calculated with the default values below
Amount to convert 100 · Exchange rate (target per 1 source) 0.92 Converted amount 92.00 · Inverse rate 1.086957
General background references
Disclaimer
These calculators give estimates for general information only. They are not financial, tax or investment advice and do not take your personal circumstances into account. Before borrowing, investing or filing, confirm the numbers with a qualified adviser in your jurisdiction.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
Y = A × R
- A
- Amount
- R
- Exchange rate
Inverse rate = 1 ÷ R (0 if R = 0).
Frequently asked questions
Why does the converter rely on the exchange rate I enter?
The tool multiplies your amount by the exchange rate you supply and shows the inverse, so it is a checking tool rather than a live feed. At the default 0.92, 100 units become 92 with an inverse of 1.087. Because the rate is fixed input, the same figure can model a quoted rate, a budget rate, or a historical rate with no external data.