Trading
Trading Calculators
Free interactive tools for position sizing, risk management, technical levels, and volatility analysis.
Whether you are sizing a trade, setting a stop loss, checking a pivot level, or measuring volatility before an options trade, these free trading calculators give you instant, formula-accurate answers. Every calculator runs entirely in your browser — no account required.
Start with the position size calculator to determine how much to risk per trade, then use the risk management and volatility tools below to refine your setup.
Trading Calculators
Position Sizing & Stops
Position Size Calculator
Calculate the correct position size for each trade based on your risk tolerance and account size.
Use calculator02Risk-Reward Ratio Calculator
Calculate the risk-reward ratio for any trade setup to evaluate whether it is worth taking.
Use calculator03Stop Loss Calculator
Calculate the ideal stop loss price and dollar risk for any trade based on your entry and risk parameters.
Use calculator04Trailing Stop Calculator
Calculate the optimal trailing stop distance and price level for any trade based on ATR or percentage.
Use calculatorLeverage, Margin & Lot Size
Leverage Calculator
Calculate your effective leverage, margin requirements, and potential liquidation price for leveraged trades.
Use calculator02Margin Calculator
Calculate the margin required to open and maintain a leveraged position in forex, stocks, or crypto.
Use calculator03Pip Value Calculator
Calculate the value of a single pip for any forex pair to understand your per-pip dollar exposure.
Use calculator04Lot Size Calculator
Calculate the correct lot size for a forex or commodities trade based on your risk and stop loss distance.
Use calculatorTechnical Levels
Pivot Point Calculator
Calculate classic, Woodie, and Camarilla pivot points with first and second support and resistance levels.
Use calculator02Fibonacci Retracement Calculator
Calculate Fibonacci retracement and extension levels between any two price points on a chart.
Use calculatorSystem & Account Risk
Risk of Ruin Calculator
Calculate the probability of losing your entire trading account based on win rate and risk per trade.
Use calculator02Drawdown Calculator
Calculate the maximum drawdown and drawdown recovery time for a trading account or portfolio.
Use calculator03Trading Expectancy Calculator
Calculate your trading system expectancy to determine if your strategy has a positive edge.
Use calculator04Kelly Criterion Calculator
Calculate the optimal position size percentage using the Kelly Criterion for any trading or betting system.
Use calculatorVolatility
Volatility Calculator
Calculate historical volatility for any asset using standard deviation of returns over a chosen period.
Use calculator02Average True Range Calculator
Calculate the Average True Range (ATR) for any asset to measure volatility and set stop losses.
Use calculator03Implied Volatility Calculator
Calculate implied volatility from an option price using the Black-Scholes model.
Use calculator04Historical Volatility Calculator
Calculate the historical volatility of any stock or asset using closing prices over a selected lookback period.
Use calculatorTrading Costs & Forex
Spread Calculator
Calculate the bid-ask spread cost for any trade to understand your true trading expenses.
Use calculator02Slippage Calculator
Estimate the cost of slippage on your trades based on order size and market liquidity.
Use calculator03Carry Trade Calculator
Calculate the potential profit or loss from a carry trade based on interest rate differential and exchange rate movement.
Use calculator04Swap Calculator
Calculate the overnight swap or rollover cost for holding a forex or CFD position overnight.
Use calculator05Hedge Ratio Calculator
Calculate the hedge ratio between two correlated assets or a futures contract and its underlying.
Use calculatorFrequently Asked Questions
What is a trading calculator?
A trading calculator is an interactive tool that computes key trade metrics — position size, risk-reward ratio, stop loss levels, margin, volatility, and more — from the numbers you enter, using standard trading formulas.
Are these trading calculators free to use?
Yes, all our trading calculators are completely free to use. No account or subscription is required.
Which trading calculator should I use first?
Start with the position size calculator to determine how much to risk per trade, then use the stop loss and risk-reward ratio calculators to evaluate the trade setup before entering.
Do these calculators work for forex, stocks, and crypto?
Yes. Most of these calculators — position size, leverage, margin, stop loss, risk-reward ratio, volatility — apply across asset classes. Pip value and lot size calculators are forex-specific, and carry trade and swap calculators apply to forex and CFD positions.
Can I use these calculators on my phone?
Yes, every trading calculator on this page is fully responsive and works on desktop, tablet, and mobile devices.
Ready to size your next trade?
Start with the position size calculator, then check your risk-reward ratio before entering the trade.