How the estimate works
Funding is charged on notional position size at each funding interval. The calculator multiplies your position size by the funding rate per interval, by the number of intervals per day, by the days you hold — giving the total funding paid or received.
Sign follows the funding rate and your side: a long pays when funding is positive and receives when it is negative, and a short is the mirror. The tool also shows the daily cost and an annualized rate so you can compare carry across positions.
This estimate assumes a constant funding rate over the holding period. Real funding varies every interval, so treat the output as a planning figure rather than an exact charge.
Estimate only
Funding rates change every interval; this assumes a constant rate and is an educational estimate, not the exact amount your exchange will charge. This is not financial advice.