The calculation formula is as follows:

1-Day Swap = Lot Size × Swap Points × Contract Size × Decimal Places

"Decimal Places" (Tick Size) refers to the minimum unit of fluctuation in the exchange rate. For USD/JPY, the rate is displayed up to the third decimal place, so the Decimal Places (Tick Size) is "0.001".

The Contract Size, Decimal Places, and Swap Points can be confirmed through "Specifications" of MT4/MT5.

For example, if you hold a short position of 0.1 lots in USD/JPY, the swap amount would be calculated as follows (assuming Contract Size = 100,000 and Swap = 8.442):

Swap Amount = 0.1 × 8.442 × 100,000 × 0.001 = 84.42 (JPY).

You can calculate currency swaps by entering the instrument and trade size in our Swap Calculator:

Swap Calculator

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