Swap / Rollover Calculator
Estimate the overnight cost of holding a position open.
Swap rates vary daily by broker and pair. Use your broker’s published rate for accuracy.
Understanding Forex Swap and Rollover Costs
Holding a forex position open past the daily market close triggers a swap, also called a rollover — an interest adjustment based on the difference between the two currencies’ interest rates. This swap calculator estimates that overnight cost or credit across the nights you plan to hold a position.
Why swap can be positive or negative
If you’re long the higher-yielding currency in a pair, swap can actually pay you; if you’re long the lower-yielding currency, you typically pay swap instead. This is why the same pair can have very different swap rates depending on trade direction.
Why this matters for longer-term positions
Swap costs are small per night but accumulate for swing or position traders holding for weeks — factoring this into your overall trade cost is easy to overlook if you’re used to closing trades same-day.
