Swap and overnight financing calculator
Cost or credit of holding a position overnight, triple rollover included.
Example inputs, not market prices: change them to your trade.
Result
How it is computed
Per night = Swap points × Tick size × Contract size × Volume, or Value × Annual rate ÷ Days per year
Brokers show the swap either in points or as an annual financing rate. The calculator turns either into an amount per night, and counts the triple rollover that covers the weekend when you give dates.
Worked example
Inputs
- Instrument
- EURUSD
- Account currency
- USD
- Direction
- Buy (long)
- Volume (lots, contracts or shares)
- 1
- Swap type
- Swap in points
- Swap long (points)
- −6.5
- Swap short (points)
- 1.2
- Nights charged
- 7
Result
Total
−$45.50
- Per night
- −$6.50
- Nights charged
- 7
Computed on the server by the same code as the form above (calculator table 2026-10-04.1).
Questions
What is the triple rollover?
One rollover a week counts three nights to cover the weekend: Wednesday on most forex pairs, often Friday on CFDs.
Why is my swap positive?
When the interest of the currency you hold is above the one you borrow, after the broker's fee, the swap is a credit.
Where do I find the swap points?
In the specification of the symbol on your platform: swap long and swap short.
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A calculation, not a forecast. Not investment advice.