Funding Rate Calculator
Calculate what a perpetual futures position pays or earns in funding per interval, per day, and over your holding period.
USD
%
- Payment per interval
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- Payment per day
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- Total over holding period
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- Annualized rate
- 10.95%
How it works
Perpetual futures use periodic funding payments to keep the contract price tied to spot. Each interval (typically every 8 hours, three times per day) one side pays the other: when the rate is positive, longs pay shorts; when negative, shorts pay longs. The payment is the funding rate applied to your position's notional value, not your margin.
Payment per interval = Position notional × Funding rate %
Daily cost = Payment per interval × Intervals per day
Total cost = Daily cost × Days held
Annualized rate % = Funding rate % × Intervals per day × 365The calculator assumes a constant rate and notional; in reality the rate is recalculated every interval. Small rates compound: 0.01% per 8-hour interval is roughly 11% per year on the notional, which matters for leveraged positions held long term.