Funding Rate Cost Calculator
Funding is charged every few hours. Held over weeks on the crowded side, it becomes a significant cost before price does anything.
Runs entirely in your browser. Nothing you type is sent anywhere.
Which side pays
If the perpetual trades above spot, longs pay shorts. In a strong bull market that is continuous, which is why a leveraged long held for a month can cost several percent in funding alone.
Common questions
What is a funding rate?
A periodic payment between longs and shorts that keeps a perpetual tethered to spot. If you are on the crowded side you pay it continuously.
Is funding charged when I am in profit?
Yes. It is charged on position size regardless of whether the position is up or down.
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Risk warning: crypto is highly volatile and largely unregulated. This is an information tool, not financial advice.