Free quant toolkit
Quant Trading Calculators
Open-formula calculators for the numbers you should know before a strategy touches real capital.
These are free, browser-only calculators for the risk and performance figures a systematic trader checks before deploying a strategy: position size, liquidation price, grid profit after fees, perpetual funding cost, Kelly fraction, risk of ruin, compound growth, and leveraged PnL. Every formula is printed on the page, nothing is sent to a server, and no account is required.
Risk & sizing
Position Size Calculator
Size the trade from the stop, not from the balance. The leverage is an output, never an input.
Open calculatorLiquidation Price Calculator
Long and short liquidation levels for an isolated-margin position, with the distance in percent.
Open calculatorCrypto PnL Calculator
Leveraged profit and loss for long and short, with return on equity and round-trip fees separated out.
Open calculatorRisk of Ruin Calculator
The chance a strategy hits your drawdown limit before its edge has time to show up.
Open calculatorStrategy design
Grid Trading Profit Calculator
Profit per completed grid net of round-trip fees, and the fee rate at which the configuration stops working.
Open calculatorFunding Rate Calculator
Perpetual funding converted into cash per interval, per day, per holding period — and annualised.
Open calculatorKelly Criterion Calculator
The growth-optimal bet fraction, with the half and quarter positions most practitioners actually run.
Open calculatorPerformance & growth
Educational calculator. Outputs describe arithmetic under the assumptions you enter — they are not a forecast, a recommendation, or investment advice. Quantitative trading can lose money.
Take the number into a terminal that enforces it
Position caps, drawdown stops, and liquidation distance are limits QANTERION applies while a strategy runs — not figures you re-check by hand.