Tool // no signup, runs in your browser
Funding rate calculator
Estimate what funding will cost — or pay you — over the life of a perpetual position. Enter the contract size, entry price and the current rate for your funding interval.
// Position inputs
| Per interval | — |
|---|---|
| Per month (30d) | — |
| Per year | — |
| Annualized rate (APR) | — |
notional = size × price
// positive rate: longs → shorts
How to read the result
[PLACEHOLDER: short explainer — green/red sign means receive/pay for your selected side; compare the daily cost against the move your plan requires; funding is paid automatically from your margin balance, so a paying position drifts closer to liquidation even when price is flat.]
Background reading: the full funding rates pillar →
Estimating spot trading costs instead? Use the crypto trading fee calculator →
Frequently asked questions
How is the funding payment calculated?
Payment per interval equals position notional multiplied by the funding rate. With positive funding, longs pay shorts; with negative funding, shorts pay longs. This calculator multiplies the per-interval payment by the number of intervals in a day, month or year.
Does the calculator match my exchange exactly?
No. Real exchanges calculate funding on mark or index prices, apply rate caps and intervals, and may tier margin rules. The result is an educational estimate built on a constant-rate assumption; always verify against the exchange's own contract specifications.
Is a high funding rate a signal to enter a trade?
Not on its own. Funding is a carrying cost and a crowding indicator, not a directional forecast. A position must make sense after subtracting the funding you expect to pay over the holding period.
See live funding on an exchange
Funding rates and countdowns are displayed directly on contract pages. Compare venues on funding caps, interval length and margin rules before opening a position.