Funding costs, calculated.
Project funding paid or received from your position value, signed rate and settlement interval. A current rate is an input, not a forecast.
What is a funding rate?
A positive funding rate means longs pay shorts; a negative rate reverses the payment. Receiving funding does not remove price, liquidation, execution or counterparty risk.
A fixed-rate funding budget
For a linear position valued at margin × leverage, an assumed 0.01% funding rate every 8 hours equals 0.1% of margin per settlement at 10×: 0.3% per day, 2.1% per seven days and 9% per 30 days. At 50× the same assumptions give 1.5% per day. These figures apply to the paying side only while rate, position value and interval stay constant; a negative rate reverses the payer. Shorter intervals only increase the projection if the same per-interval rate is retained. Actual rates and mark prices change, and venues debit collateral according to their own rules. This budget is neither settled history nor a prediction that every position will eventually be liquidated.
The live picker covers only the venues and contracts shown in the interface. If your venue or contract is absent, enter its official signed funding rate and settlement interval manually, with the correct position and settlement units. A preset for another market is not its quote; this calculator does not retrieve your private account or historical funding payments.
How to keep funding costs down
Compare the native rate, interval and contract at the same position value. Lower leverage reduces funding only if it also reduces that value; adding collateral to the same position does not reduce its funding payment. Future rates can change.
Frequently Asked Questions
What is a funding rate?
A periodic payment between long and short traders that keeps a perpetual contract's price anchored to the spot index. Perps have no expiry, so funding is the mechanism that pulls the contract back toward the underlying price.
Who pays whom?
A positive funding rate means longs pay shorts; a negative rate reverses the payment. Receiving funding does not remove price, liquidation, execution or counterparty risk.
How often is funding charged?
Funding intervals vary by venue and contract and can change. Check the current interval and next settlement time in the contract's official funding information. This calculator uses the interval supplied with the selected market; for a manually entered rate, select the matching interval. A rate quoted for one interval must not be used as if it were quoted for another.
Why does funding eat margin so fast at high leverage?
For a linear position valued at margin × leverage, an assumed 0.01% funding rate every 8 hours equals 0.1% of margin per settlement at 10×: 0.3% per day, 2.1% per seven days and 9% per 30 days. At 50× the same assumptions give 1.5% per day. These figures apply to the paying side only while rate, position value and interval stay constant; a negative rate reverses the payer. Shorter intervals only increase the projection if the same per-interval rate is retained. Actual rates and mark prices change, and venues debit collateral according to their own rules. This budget is neither settled history nor a prediction that every position will eventually be liquidated.
What does a negative funding rate mean for me?
A positive funding rate means longs pay shorts; a negative rate reverses the payment. Receiving funding does not remove price, liquidation, execution or counterparty risk.
How can I reduce funding costs?
Compare the native rate, interval and contract at the same position value. Lower leverage reduces funding only if it also reduces that value; adding collateral to the same position does not reduce its funding payment. Future rates can change.
Methodology, checks and sources
Educational scenarios for linear USDT/USDC and inverse coin-margined contracts. These are not exchange-specific liquidation engines or forecasts.
For derivatives, leverage is notional exposure divided by initial margin. At 8×, 1 unit of margin backs 8 units of exposure; this does not itself create a loan. Spot margin borrowing is a different product.
- Maintenance is fixed at entry. Cross margin models one position backed by the entered wallet balance. Fees, funding, changing risk tiers, other positions and collateral haircuts are excluded. Actual venues can use different formulas and mark-price triggers.
- Size targets a planned loss at an exact stop fill. Fees, funding, gaps and slippage are excluded. The bankruptcy boundary is not the actual liquidation trigger; maintenance and costs can cause earlier liquidation.
- The projection holds rate, position value, mark price and interval constant. It does not model changing rates or actual settlement timestamps. Kraken accrues funding continuously; its hourly equivalent is a comparison basis.
- Annualized % = native rate % × 24 ÷ interval hours × 365. This is simple annualization without compounding, not a promised yield. Missing quotes are not zero rates.
Worked verification examples
- Isolated USDT: entry 65,000, margin 1,000, 10×, maintenance 0.5% → long 58,825; short 71,175.
- The same position with cross collateral 2,000 USDT → long 52,325 USDT.
- Inverse BTC: entry 65,000 USD, margin 0.01 BTC, 10×, maintenance 0.5% → long 59,360.73 USD.
- USDT account 10,000, planned risk 1%, stop distance 5%, 5× → notional 2,000, margin 400, planned loss 100 USDT.
- USDT margin 1,000, 10×, constant 0.01% per 8 hours for 7 days → long pays 21 USDT; short receives the same amount.
Zero entry prices, zero stop distances and maintenance at or above collateral cannot define a valid position. Zero funding produces zero cost; negative funding reverses payer and recipient.
Primary sources
- Bybit · Liquidation rules
- Bybit · Funding fee calculation
- Binance API
- Bybit API
- OKX API
- KuCoin API
- Kraken API
Responsible publisher: MN Media s.r.o.
Model and source checks: . Calculation tests and source review; not an independent financial certification.