Free crypto trading tools
Fast, no-signup calculators for perpetual-futures and arbitrage traders — built by the team behind Arbitron's live multi-exchange arbitrage engine.
Arbitrage Calculator
Model a full delta-neutral arbitrage cycle — captured spread, funding paid and received, and taker fees — to get net profit, ROI, annualized APR and the break-even spread.
Open toolFunding Rate APR Calculator
Convert a per-interval funding rate into annualized APR across 1h, 2h, 4h and 8h schedules.
Open toolPosition Size Calculator
Size a position from account risk, entry and stop, with leverage and margin requirements.
Open toolLiquidation Price Calculator
Estimate the liquidation price of a leveraged perpetual position by margin mode and leverage.
Open toolStop calculating by hand
Arbitron scans live spreads and funding across 20 exchanges and executes both legs in parallel — tracking net PnL for you in real time.