Calculate the total cost or income from perpetual futures funding rates over time. Estimate how funding payments affect your position profitability.
Perpetual futures contracts use a funding rate mechanism to keep their price aligned with the spot market. When the perpetual price is above spot (bullish), longs pay shorts. When below spot (bearish), shorts pay longs. These payments happen every 8 hours on most exchanges.
Funding rates may seem small (0.01% per 8 hours is typical), but they compound significantly over time. A 0.01% rate applied three times daily equals approximately 10.95% annually. During volatile or trending markets, funding rates can spike to 0.1% or higher per period, costing traders 1% or more per day.
This calculator estimates the total funding cost or income for your position over a specified holding period. Understanding funding impact is essential for anyone holding perpetual futures positions for more than a few hours.
Crypto traders, long-term holders, and DeFi participants benefit from transparent crypto funding rate impact calculations when planning entries, exits, or portfolio rebalances. Revisit this calculator whenever market conditions shift to keep your strategy grounded in accurate data.
Many traders underestimate how much funding rates eat into their profits. A seemingly profitable trade can become a net loss after accounting for cumulative funding payments. This calculator shows you the true cost of holding a perpetual futures position, helping you decide optimal hold times and position sizes. Real-time recalculation lets you model different market scenarios quickly, so you can act with confidence rather than relying on rough mental estimates.
Funding Payment per Period = Position Size × Funding Rate Total Funding = Position Size × Rate × Periods per Day × Days Annualized Rate = Rate × Periods per Day × 365 × 100
Result: Total Funding: $210
With a $50,000 position and 0.01% funding rate per 8 hours (3 times daily) for 14 days: Total = $50,000 × 0.0001 × 3 × 14 = $210. This represents a 0.42% cost on the position. Annualized, this 0.01% rate equals approximately 10.95% — a meaningful drag on returns.
New crypto traders often overlook funding rates because each individual payment is small. But these payments occur 1,095 times per year (3 per day × 365 days). At the baseline 0.01% rate, that's approximately 10.95% annually — more than most savings accounts yield. During bullish periods, the effective annual rate can exceed 50-100%, making long-term holding of leveraged longs extremely expensive.
Extreme funding rates signal market extremes. Very high positive funding (>0.05%) indicates excessive bullish leverage — often preceding corrections. Very negative funding (<-0.03%) indicates excessive bearish positioning — often seen near bottoms. Sophisticated traders use funding rates as a contrarian indicator.
Check funding rates before entering trades. If positive funding is high and you want to go long, consider waiting for a funding reset or using quarterly futures instead. If funding is negative and you're long, you're actually getting paid to hold — consider extending your position duration to collect income.
Most exchanges charge funding every 8 hours (3 times per day) — typically at 00:00, 08:00, and 16:00 UTC. Some exchanges like dYdX charge hourly. The rate shown is per period, so you need to multiply by the number of periods to get the daily cost.
The baseline rate is usually 0.01% per 8 hours (about 10.95% annually). During bullish markets, it can spike to 0.05-0.3% per period. During bearish periods, it can go negative (-0.01% to -0.1%). Sustained rates above 0.05% usually don't last long.
When the funding rate is positive, longs pay shorts. When negative, shorts pay longs. The exchange doesn't take the funding — it's a direct transfer between traders. This mechanism incentivizes the underrepresented side and keeps perpetual prices near spot.
Absolutely. If you hold a long position for weeks during high funding rates, the cumulative cost can easily exceed your unrealized profit. For example, at 0.05% per 8 hours, holding for 30 days costs 4.5% of your position — a substantial amount that can turn a winning trade into a loser.
When funding rates are high positive, you can buy spot (or on low-leverage margin) and simultaneously short perpetual futures. You collect funding payments while being market-neutral. This is a popular low-risk strategy that captures the spread between spot and perpetual prices.
Funding is charged on the total position size, not your margin. At 10x leverage with $5,000 margin, your position is $50,000 and funding is charged on $50,000. Higher leverage means proportionally higher funding costs relative to your capital.