How do you calculate swaps in currency pairs (in forex) and for gold/silver?

You can read about the swap charges here.

The swap formula for all forex instruments, including gold and silver, is the following:

lots * long or short positions * point size

Here is an example for EUR/USD:

Client base currency is USD
1 lot buy EUR/USD
Long = -3.68
Because it is a buy position, the system will take the swap rate for long position, which currently is -3.68
Point size = contract size of a symbol * minimum price fluctuation
EUR/USD point size = 100 000 * 0.00001 = 1
If we apply the given numbers in the formula, it will be 1 * (-3.68) * 1 = -3.68 USD.
So for 1 lot buy EUR/USD, if the position is left overnight, the swap calculation for the client will be -3.68 USD.

Here is an example for gold:

Client base currency is USD
1 lot buy gold
Long = -2.17
Because it is a buy position, the system will take the long points, which currently is -2.17.
Point size = contract size of a symbol * minimum price fluctuation
Gold point size = 100 * 0.01 = 1
If we apply the given numbers in the formula, it will be 1 * (-2.17) * 1 = -2.17 USD.
So for 1 lot buy gold, if the position is left overnight, the swap calculation for the client will be -2.17 USD.

Please note that if the base currency of the trading account is in EUR (like in the examples above), the swap calculation will be converted from USD to EUR. The result of the swap calculation is always the secondary currency in a symbol, and the system converts it to the base currency of the trading account.

The examples above only serve as a guide and do not reflect the current charges. Please view the current swap charges for forex instruments here and for gold and silver here.

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