Currency Financing Charges Calculator

Find out the financing charges you pay or earn when you hold a currency position over a period of time.

  1. Select your primary currency.
    (This is the currency the tool will use to show the calculated financing.)
  2. Choose the position's currency pair.
    (The current exchange rates and financing are then filled in.)
  3. Choose the action (the type of trade, buy or sell).
  4. Type in the number of units held.
  5. Type in the number of hours the position will be held.
  6. Use the Calculate button.
    (The financing charge you'll receive or pay is shown in the financing field. Negative values indicate financing must be paid.)

You can embed the financing calculator on your own site by copying and pasting the code below.


This tool calculates the financing charges gained or owed when buying or selling a specific number of units of a currency pair. It calculates this value in the primary currency (as chosen by the user).

It uses the following formulas.

For a long position:

  1. Financing Charges on Base = units * ({BASE} Interest Rate %) * (Time in years) * ({BASE}/Primary Currency)
  2. Financing Charges on Quote = (converted units) * ({QUOTE} Interest Rate %) * (Time in years) * ({QUOTE}/Primary Currency)
  3. Total Financing = Financing Charges on Base - Financing Charges on Quote

For a short position:

  1. Financing Charges on Quote = (converted units) * ({QUOTE} Interest Rate %) * (Time in years) * ({QUOTE}/Primary Currency)
  2. Financing Charges on Base = units * ({BASE} Interest Rate %) * (Time in years) * ({BASE}/Primary Currency)
  3. Total Interest = Financing Charges on Quote - Financing Charges on Base

This is for general information purposes only - Examples shown are for illustrative purposes and may not reflect current prices from OANDA. It is not investment advice or an inducement to trade. Past history is not an indication of future performance.

Trading FX and/or CFDs on margin is high risk and not suitable for everyone. Losses can exceed investment.