Estimate how much a perpetual futures funding rate will cost or pay you over a holding period, a cost that quietly adds up on leveraged positions. Enter your position size in dollars, the funding rate per interval as a percent, how many hours each interval lasts, and how many hours or days you plan to hold. The tool multiplies the rate by the number of intervals and your notional to show the total funding, and whether you pay it or receive it. On most venues funding is charged every eight hours, and a rate that looks tiny per interval can become meaningful over a week of holding a large position. Longs usually pay shorts when funding is positive, and the reverse when it is negative. All calculations run locally in your browser, so your position details are never sent anywhere.
It multiplies your position size by the funding rate for each interval. Longs pay shorts when the rate is positive, and the reverse when negative.
Perpetual funding is charged per interval, often every 8 hours, so a longer holding period across more intervals raises the total cost or income.
No. A negative funding rate means shorts pay longs, so a long position earns funding instead of paying it.
Estimate how much a perpetual futures funding rate will cost or pay you over a holding period, a cost that quietly adds up on leveraged positions. Enter your position size in dollars, the funding rate per interval as a percent, how many hours each interval lasts, and how many hours or days you plan to hold.
Yes. Funding Rate Calculator is completely free, with no sign-up and no usage limits.
Yes. Funding Rate Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Funding Rate Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.