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Funding Fee Calculator

Estimate the perpetual-futures funding fees you pay or earn on a crypto position over a holding period.

Funding per 8h0 USDT
Funding intervals3
Total funding0 USDT

Positive rate = longs pay shorts (a cost for longs). Negative = shorts pay longs.

How to use the funding fee calculator

Perpetual futures have no expiry, so exchanges keep their price close to spot with funding: a payment between longs and shorts at fixed intervals, usually every 8 hours. When the rate is positive longs pay shorts; when it is negative shorts pay longs.

Enter the position value, the funding rate per 8 hours and how long you expect to hold. The calculator shows the payment per interval, the number of intervals and the total.

The rate changes at every interval, so treat the result as an estimate from today's rate. Some contracts settle every 4 hours or every hour; this calculator assumes 8-hour intervals.

The formula

  • Funding per interval = position value ร— funding rate
  • Intervals = holding hours รท 8
  • Total funding = funding per interval ร— intervals

Worked example

Position 5,000 USDT, funding rate 0.01% per 8 hours, held 24 hours.

  1. Funding per interval = 5,000 ร— 0.01% = 0.5 USDT.
  2. Intervals = 24 รท 8 = 3.
  3. Total = 0.5 ร— 3 = 1.5 USDT, paid by a long and received by a short.
  4. At a crowded 0.1% rate the same position pays 15 USDT a day.

Frequently asked questions

Who pays funding, longs or shorts?

With a positive rate longs pay shorts; with a negative rate shorts pay longs. The exchange does not keep it; it passes between traders.

Do I pay funding if I close before the interval?

Funding is charged only to positions open at the funding timestamp. A position closed before it pays or receives nothing for that interval.

What does a very high funding rate tell me?

A high positive rate means many traders are leveraged long and paying to stay there. Crowded positioning like that can unwind sharply, so many traders read it as a warning rather than a signal.

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Estimates for education only โ€” not financial advice. Exchange fees, slippage and funding are not included unless stated.