How to Calculate Futures Funding Fee: Long and Short Formulas
2026-07-24
Crypto futures trading offers opportunities to profit whether prices rise or fall. However, there is one cost component often overlooked by beginner traders: the futures funding fee.
Understanding how to calculate the funding fee is very important because this cost can affect the final transaction result, especially if the position is held for a long time. Therefore, knowing the funding fee formula and calculation method is essential preparation before opening futures positions.
Key Takeaways
- Funding fees are calculated based on position value and the applicable funding rate.
- A positive funding rate means Long traders pay Short traders, while a negative funding rate works the other way around.
- The larger the position size and leverage, the greater the funding fee amount paid or received.
What Is a Futures Funding Fee?
A futures funding fee is a periodic payment exchanged between traders holding Long positions and traders holding Short positions in perpetual futures contracts.
Unlike trading fees, funding fees do not go to the exchange. This system is designed to keep the price of perpetual contracts close to the spot market price of the asset.
Simply put, funding fees work based on market conditions.
- When the majority of traders open Long positions causing the contract price to be higher than the spot price, the funding rate becomes positive. In this condition, Long traders pay Short traders.
- Conversely, if selling pressure dominates and the contract price is below the spot price, the funding rate becomes negative so Short traders pay Long traders.
This mechanism is used by various crypto futures platforms to maintain balance in the perpetual market.
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Illustration: Generated by AI
Futures Funding Fee Formula
Calculating the funding fee is actually quite simple.
The formula used is:
Funding Fee = Position Value × Funding Rate
Notes:
- Position Value = size of the opened contract (Position Value)
- Funding Rate = percentage of funding applicable during that period
It is important to understand that position value is not the initial capital (margin), but the total transaction value after accounting for leverage.
How to Calculate Position Value
The formula is:
Position Value = Margin × Leverage
Example:
- Margin = 100 USDT
- Leverage = 10x
Then:
Position Value = 100 × 10 = 1,000 USDT
If the funding rate at that time is 0.01%, then:
Funding Fee = 1,000 × 0.01%
= 0.1 USDT
This 0.1 USDT amount is what will be paid or received depending on the direction of the funding rate.
Read Also: How to Trade Futures on Bittime for Beginners
Long and Short Position Funding Fee Calculation Examples
To make it easier to understand, here are some simulations.
Example 1: Positive Funding Rate
Transaction data:
- Margin = 200 USDT
- Leverage = 20x
- Position Value = 4,000 USDT
- Funding rate = +0.02%
Calculation:
Funding Fee = 4,000 × 0.02%
= 0.8 USDT
Because the funding rate is positive:
- Long trader pays 0.8 USDT
- Short trader receives 0.8 USDT
Example 2: Negative Funding Rate
Transaction data:
- Margin = 500 USDT
- Leverage = 5x
- Position Value = 2,500 USDT
- Funding rate = -0.015%
Calculation:
Funding Fee = 2,500 × 0.015%
= 0.375 USDT
Because the funding rate is negative:
- Short trader pays 0.375 USDT
- Long trader receives 0.375 USDT
The funding fee amount is still calculated using the absolute value of the funding rate. Only the paying party changes.
Read Also: Bittime Futures: Complete Guide to Crypto Derivatives Trading in Indonesia
Example 3: Leverage Affects Funding Fee
Suppose two traders use the same margin.
From the example above, it can be seen that the higher the leverage, the larger the position value, so the calculated funding fee also increases.
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Factors Affecting the Amount of Funding Fee
The funding fee amount is not always the same. Several factors influence it.
1. Position Value Size
The larger the opened position size, the larger the funding fee calculated.
2. Funding Rate
The funding rate can change periodically according to market conditions. When volatility increases or one side of the market dominates, the funding rate can also change.
3. Leverage
Leverage does not directly change the funding rate, but it increases the position value so the funding fee amount also increases.
4. Position Holding Duration
Funding fees are charged at each funding period set by the platform. The longer the position is held, the more often traders pay or receive funding fees.
Read Also: Beginners Must Know! These Are the Preparations Before Trading Crypto Futures
Conclusion
The funding fee is an important component in crypto futures trading because it affects the cost of maintaining a position. The way to calculate the funding fee uses a simple formula, namely position value multiplied by funding rate, while position value is obtained from margin multiplied by leverage.
Traders also need to understand the difference between positive and negative funding rates. When the funding rate is positive, Long traders pay Short traders. Conversely, when the funding rate is negative, Short traders pay Long traders.
By understanding this mechanism, traders can estimate potential costs before opening futures positions and develop more mature trading strategies.
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FAQ
What is a futures funding fee?
A futures funding fee is a periodic payment between Long and Short traders on perpetual futures contracts to keep the contract price close to the spot market price.
How do you calculate the funding fee?
The funding fee is calculated using the formula Position Value × Funding Rate. Position value is obtained by multiplying margin by leverage.
Who pays the funding fee?
If the funding rate is positive, Long traders pay Short traders. If the funding rate is negative, Short traders pay Long traders.
Does leverage affect the funding fee?
Yes. Leverage increases the position value, so the funding fee amount paid or received also becomes larger.
Is the funding fee the same as the trading fee?
No. Trading fees are paid to the exchange when making a transaction, while funding fees are exchanged directly between Long and Short traders on perpetual futures contracts.
Disclaimer: The views expressed belong exclusively to the author and do not reflect the views of this platform. This platform and its affiliates disclaim any responsibility for the accuracy or suitability of the information provided. It is for informational purposes only and not intended as financial or investment advice.
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