Crypto Funding Rate Calculator
See what holding a perpetual position costs in funding, in money, as a share of the position and as a share of your margin.
Calculate FundingPerpetual futures have no expiry date, so exchanges need another way to keep the contract price close to the spot price. They use funding: at fixed times, traders on one side of the market pay traders on the other side. When the rate is positive, longs pay shorts. When it is negative, shorts pay longs. On most exchanges the payment moves between traders rather than going to the exchange, but check how your own venue describes it.
Funding looks small on the screen. A rate of 0.01% sounds like nothing, but it is charged on the full position value at every funding time, which is often every 8 hours. On a position worth 10,000 held for 30 days that is 90 payments of 1.00 each, 90 in total, or 0.9% of the position. If that position was opened with 10x leverage, the margin behind it is 1,000, so the same 90 is 9% of the capital you actually put up.
For a trade that lasts a few hours, funding barely matters. For a swing trade held for days or weeks it can rival the trading fees, and in a crowded market the rate can stay high for a long time. Knowing the number before you open the position lets you decide whether the trade still makes sense after you pay it.
The calculator takes the rate you see on the exchange, how often it is charged and how long you plan to hold. It does not know what the rate will be later, so treat the result as the cost if the rate stayed where it is. For the other costs of a trade, use the trading fee calculator, and to see where a leveraged position gets closed out, use the liquidation price calculator.
What funding costs a $10,000 long
Total funding paid by a long position worth 10,000 when the rate is paid every 8 hours and stays the same. A positive number is a cost.
| Rate per 8 hours | Annualized | 1 day | 7 days | 30 days |
|---|---|---|---|---|
| 0.005% | 5.5% | 1.50 | 10.50 | 45.00 |
| 0.01% | 11.0% | 3.00 | 21.00 | 90.00 |
| 0.03% | 32.9% | 9.00 | 63.00 | 270.00 |
| 0.1% | 109.5% | 30.00 | 210.00 | 900.00 |
Illustration with a constant rate. Real rates change at every funding time and can be negative, in which case longs receive instead of pay.
Example — not your data
Example: a 10,000 long held for 7 days at 0.03% per 8 hours with 5x leverage
Funding payments
7 days at 3 payments a day
21
Each payment
10,000 × 0.03%
3.00
Total funding paid
63.00
Share of the position
0.63%
Share of the margin
The margin is 2,000 with 5x leverage
3.15%
A worked example with made-up numbers, not a forecast. Real rates change at every funding time.
The formula
Funding per payment = position value × funding rate
Payments = holding days × 24 ÷ interval in hours
Total funding = funding per payment × payments
Share of margin = total funding ÷ (position value ÷ leverage)
A positive rate means longs pay and shorts receive. A negative rate reverses that. The rate applies to the position value, not to your margin.
Holdy Lab content is educational and is not financial advice. Results describe the data you provide; they do not predict future results.
You pay in funding
21.00
Funding payments (21)
−1.00 each
Per day
−3.00
Of the position value
0.210%
Annualized, on the position
−11.0%
Assumes the rate stays the same. Real rates change at every funding time. On most perpetual contracts a positive rate means longs pay shorts. Where a sign is shown, a minus means money leaves your balance and a plus means it arrives.
This is what funding costs on paper. Your own trade history shows what fees and funding actually took, and where.
Analyze my tradesWhat the numbers mean
Position value, not margin
Funding is charged on size times price. Leverage does not change the amount paid, but it makes the same amount a bigger share of the capital you put in.
The interval
Many contracts charge every 8 hours, but some use shorter intervals. A shorter interval with a smaller rate can add up to the same daily cost, so enter both exactly as your exchange shows them.
The rate keeps moving
The rate is recalculated from market conditions and can flip sign. The result here is the cost if today's rate stayed constant, which is rarely what happens over weeks.
What is not included
Trading fees, spread and slippage are separate costs. Funding is one line of the bill, so add the others from the trading fee calculator to see the full cost of the trade.
Frequently asked questions
What is a funding rate in crypto perpetual futures?
It is a periodic payment between long and short traders that keeps the perpetual contract price near the spot price. The rate is set by the exchange from the gap between the two prices, and the sign decides which side pays.
Do I pay funding if I close the position before the funding time?
On most exchanges funding is charged only to positions that are open at the moment of the funding time, so closing just before it avoids that payment. Rules differ between venues and contracts, so confirm in your exchange's documentation.
Can I earn funding instead of paying it?
Yes, when the rate is negative for longs or positive for shorts, you receive the payment. The price move on the position is usually far larger than the funding amount, so it rarely makes sense to trade for funding alone without understanding that risk.
Where do I find the current funding rate?
On the contract page of your exchange, normally with a countdown to the next funding time. The rate can differ between contracts and between exchanges, and many sites also show a predicted next rate that can change before the payment.
Does this include trading fees?
No. It covers funding only. Trading fees, spread and slippage are separate, and the trading fee calculator shows what the entry and exit fees add on top of the funding you see here.
Keep going
Holdy Lab content is educational and is not financial advice. Results describe the data you provide; they do not predict future results.