Crypto futures calculators
Quick arithmetic for perpetual futures, with the formulas shown. Nothing here predicts price; it tells you what a position costs and where it breaks.
Edge or Not? Guess the verdict
Seven popular crypto trading claims - Uptober, the rainbow chart, shorting pumps. Guess which passed a real test.
QuizHow fast would you get liquidated?
Coin, side, leverage, holding time: how often real price moves would have liquidated that position. A 20-second test.
Leverage testLiquidation price calculator
Where an isolated-margin long or short gets liquidated, for any entry and leverage, with the maintenance margin you choose.
OpenFunding fee calculator
What holding a perpetual costs (or pays) over hours or days, using the live rate from Binance, Bybit, OKX or BingX.
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