Swap (or rollover) is the interest credited or charged each night you hold a position, based on the interest-rate gap between the two currencies. Because the rate is set by your broker per symbol, this calculator uses the swap figure you enter from your broker's contract specifications.
Swap calculator
Overnight swap
Use your broker's swap figure for the symbol and direction (it can be positive or negative). The rollover day usually charges triple swap.
How it works
total swap = swap per lot per night × lots × nights held
Find your symbol's swap (long or short) in the broker's contract specifications, in your account currency per lot per night, and the calculator multiplies it by your size and the nights held. Remember the triple-swap day (usually Wednesday) counts as three nights to cover the weekend.
The swap rate changes by broker, symbol, and direction, and brokers can adjust it — always use the live figure from your broker's contract specs. Swap-free (Islamic) accounts avoid overnight interest, sometimes for an admin fee instead. This is a planning tool, not financial advice, and most retail traders lose money.
Check swap on a free demo
Open a free MT4 demo and view each symbol's swap in its contract specifications with virtual money before trading live.
⚠ Trading forex and CFDs is high-risk and most retail traders lose money. This is not financial advice.
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Related tools & guides
Add it to your profit estimate, see the swap definition, and learn about hedging and using MT4.
Frequently asked questions
What is swap in forex?
Swap (or rollover) is the interest you're charged or paid for holding a position overnight, reflecting the interest-rate difference between the two currencies. It can be negative (a cost) or positive (a credit), and it's applied each night the trade is open.
How is swap calculated?
Your broker publishes a swap figure per lot, per night, for each symbol and direction (long or short). Total swap = that rate × your lots × the number of nights held. Because the rate is broker- and symbol-specific, this calculator asks you to enter it.
What is triple swap?
To account for the weekend, when markets are closed but interest still accrues, brokers usually charge or credit three times the normal swap on one day of the week — most often Wednesday. So a position held over that day incurs three nights of swap at once.
How do I avoid paying swap?
Close positions before the daily rollover to avoid overnight swap, or use a swap-free (Islamic) account, which many brokers offer without overnight interest — sometimes with an administration fee instead. Check the broker's terms and your symbol's swap in its contract specifications.
Trading foreign exchange and contracts for difference (CFDs) carries a high level of risk and may not be suitable for all investors. Leverage can work against you as well as for you. You could lose some or all of your deposited funds; do not trade with money you cannot afford to lose. Past performance is not indicative of future results. Nothing on MT4Download.com is financial, investment, or trading advice. Consider your circumstances and seek independent advice if needed.