Funding Fee Calculator

Work out exactly what you'll pay - or receive - in funding on a perpetual futures position. Free, instant, runs in your browser.

How funding fees work

Perpetual futures have no expiry, so exchanges use a funding rate to keep the contract price tethered to spot. Every funding interval - usually every 8 hours - longs and shorts exchange a payment based on the rate:

Funding = Notional × Funding rate, each interval.

When the rate is positive, longs pay shorts (the market is long-heavy). When it's negative, shorts pay longs. A negative output above means you receive funding.

Worked example

A $10,000 long held across three 8-hour intervals at a 0.01% rate:

Small per interval, but it compounds on big or long-held positions. Read what is a funding rate for the full picture.

More calculators

Educational tool, not financial advice. Real funding depends on your exchange's rate and timing.