Free trading calculators

Six calculators built around one question: how much can this trade lose, and what does it cost to hold? Every calculation runs in your browser and shows its formula.

• Position Size Calculator — Works out how many coins to buy or sell so that hitting the stop loses only the share of the account you chose to risk, fees included.
• Liquidation Price Calculator — Estimates where a linear (USDT-margined) perpetual position is liquidated, using the maintenance-margin formula exchanges publish. Fees and funding are not included, so the real liquidation price is slightly closer to entry.
• Grid Bot Profit Calculator — Shows the profit each completed buy-sell round earns after fees, and the value of the bot if price falls to the lower bound or rises to the upper bound — the two cases a grid bot does not profit from.
• DCA Average Price Calculator — Combines every buy into one average entry. The average is weighted by coins bought, so equal-sized buys at lower prices pull it down more than a simple average of prices.
• Drawdown Recovery and Compounding Calculator — Losses and gains are not symmetric: a 50% drawdown needs a 100% gain to recover. This calculator shows the recovery gain, the years to recover at an assumed return, and compound growth.
• Funding Fee Calculator — Longs pay shorts when the funding rate is positive and receive when it is negative. This calculator turns a rate and a holding period into money, and links to the recorded funding history of major coins.