Updated: 2026-02-20
Estimate per-interval and total funding costs for perpetual futures so you know your carry drag before you hold. The calculator is free and intentionally simple so you can plan trades quickly without skipping risk logic.
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Estimate per-interval and total funding costs for perpetual futures so you know your carry drag before you hold.
Note
Outputs are only as accurate as your inputs.
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$ funding-rate
−$22.5 paid
Enter your inputs before you place the trade, not after. Pre-trade planning is where calculators create value.
Use realistic values based on your actual execution conditions. If you understate slippage, fees, or stop distance, output quality collapses.
Document the result inside your journal so you can compare planned vs realized outcomes during review.
Perpetual futures have no expiry date. To keep the contract price anchored to spot, exchanges charge funding — a periodic payment between longs and shorts. When funding is positive, longs pay shorts. When negative, shorts pay longs.
Most exchanges settle funding every 8 hours (3× per day). The rate fluctuates based on the premium between perp price and spot index. During strong trends, funding can spike and become a material cost.
Funding is a carry cost (or carry income). It is small per interval, but it compounds when you hold positions through multiple windows. Log funding separately so you can distinguish strategy edge from carry drag.
Most preventable losses come from skipping one simple calculation when markets move fast. This tool enforces the minimum math needed for disciplined execution.
The value compounds when used consistently. One correct risk decision rarely changes a year; repeated correct decisions usually do.
Tie calculator output to your strategy tags so you can evaluate whether your planning assumptions match live performance.
Use this tool at planning time, then compare outcome quality in weekly review sessions.
If planned and realized values diverge, investigate execution behavior before adjusting strategy logic.
Pair this with one behavior correction each week for compounding improvement.
Using unrealistic inputs because they feel better emotionally.
Changing parameters mid-trade to justify staying in a bad position.
Treating one output as a signal to trade rather than a risk filter.
Yes. The calculator is free and available without signup.
Funding is roughly notional × funding rate per interval. If you hold through multiple funding windows, multiply by the number of intervals. Log funding separately so you can distinguish strategy edge from carry drag.
Not always. If your edge is larger than the expected funding cost, holding can still be rational. The key is to quantify it: compare expected edge in dollars versus expected funding plus fees for the holding period.
Positive funding means longs pay shorts — the perp trades at a premium to spot. Negative funding means shorts pay longs — the perp is at a discount. The direction flips based on market sentiment and demand imbalance.
Most exchanges (Binance, Bybit, OKX) charge every 8 hours — 3 intervals per day. Some venues use 1-hour or 4-hour intervals. Check your exchange's docs because interval frequency directly multiplies your carry cost.
Yes. If you are on the receiving side — for example, short when funding is positive — you collect funding payments. Some strategies (funding-rate arbitrage) are built specifically around capturing carry by hedging spot against perps.
Usually yes, but it may be shown separately. Many exchanges fold funding into realized PnL. This calculator isolates funding so you can see its impact independently of trade PnL.
Outputs are only as accurate as inputs. Use realistic assumptions and review planned vs realized values weekly.
Yes. You can pair tool outputs with your review workflow and setup tags for better post-trade diagnostics.
See plans and run one weekly review loop with Tiltless: edges, leaks, and enforceable next actions.
