Forex swap and rollover calculator
Turn your broker's published swap rate into the real overnight cost or credit of a position, for any lot size and holding period, including triple swap nights.
Last updated: · By Forexuro Desk · Editorial policy
Free on Telegram. Join the free Forexuro Telegram channel for daily gold and forex updates, then size each trade with this calculator.
Free, opens TelegramWhat a swap is
A swap is the overnight financing charge or credit on a position held past the broker's daily rollover, often 5pm New York time. It reflects the interest rate differential between the two currencies plus the broker's markup. Long and short swaps differ, and both can be negative.
Swap rates change as central banks move rates and as brokers update their tables, so this calculator does not guess them. Use the current figure from your own broker's platform.
Points or money
Many platforms quote swaps in points, where a point is one tenth of a pip. On EUR/USD one point on one standard lot is 1 dollar, so a swap of −6.5 points costs 6.50 dollars per lot per night. On USD/JPY a point is 100 yen per lot, and on gold with a 100 ounce lot a point (0.01 dollars) is 1 dollar. The calculator converts the result into your account currency.
Triple swap nights
Spot forex settles two business days after the trade, so the rollover that crosses a weekend is charged three times. Many brokers apply it on Wednesday night for forex, and some use a different day for gold or other CFDs. Enter how many triple nights your trade crosses.
Worked example
0.50 lots of EUR/USD held for five nights including one Wednesday, with a long swap of −6.5 points. Per lot per night that is −6.50 dollars. Nights charged = 5 + 2 = 7. Total = −6.50 × 0.50 × 7 = −22.75 dollars, about −£16.98 at GBP/USD 1.34.
How to calculate a forex swap
- Find the long or short swap rate for the instrument in your broker's contract specification.
- Note whether it is quoted in points per lot or in money per lot.
- Count the nights the trade will be open at rollover, adding two extra nights for each triple swap night.
- Multiply: swap per lot per night × lots × nights charged.
Using trading signals? Each Forexuro signal gives an entry, stop and targets, so you can plug them straight into this calculator. See the forex signals, the gold signals and the daily notes on the free Telegram channel.
Related tools and guides
- Swap (glossary)
- Carry trade
- Spreads and swaps explained
- Central bank rates
- Profit and loss calculator
- All free trading tools
Frequently asked questions
Why do I pay swap on both long and short?
Broker markups can make both sides negative, especially when the two interest rates are close.
When is the triple swap?
Often Wednesday night for forex, but check your broker's table for each instrument.
Do swaps apply to day trades?
Only if the position is open at the rollover time.
Where do I find my swap rate?
In the contract specification or symbol properties on your trading platform.
Calculators are for education and planning. They do not account for your broker's spread, commission, swap or contract terms. Trading forex and CFDs carries a high risk of losing money. Read our risk disclosure.