Free Trading Calculators

Odds Converter

Converts odds between American, decimal and fractional formats.

Betting Odds Calculator

Shows what a bet pays at its odds, or the stake you need to win a set amount.

Implied Probability Calculator

Turns American, decimal or fractional odds into the chance of winning they imply.

Vig Calculator

Shows how much margin (juice) a sportsbook builds into the odds of a line.

No-Vig Calculator

Strips the sportsbook margin out of a market to find the fair odds of each side.

Parlay Calculator

Shows the combined odds and payout of a parlay from American odds for each leg.

Accumulator Calculator

Shows an acca's combined odds, total return and profit from decimal odds.

Round Robin Calculator

Shows every parlay of a round robin, its total stake and its payouts.

Teaser Calculator

Shows an NFL teaser's payout and the win rate each leg needs to break even.

Lucky 15 Calculator

Shows what all 15 bets of a Lucky 15 return for the selections that win.

EV Calculator

Shows whether a bet wins or loses money in the long run at your probability.

Value Bet Finder Workflow

Takes one bet from the bookmaker's odds to fair odds, expected value and a Kelly stake.

Kelly Criterion Calculator

Sizes a bet from your edge and the odds as a share of your bankroll.

Bankroll Management Calculator

Sizes your bets with a staking plan and projects how your bankroll grows.

Masaniello Calculator

Works out each stake of a Masaniello series of N bets that needs K wins.

Win Rate Calculator

Compares your win rate with the one you need to break even at your odds.

Betting ROI Calculator

Shows the return on everything you have staked and your profit per bet.

Hedge Bet Calculator

Finds the hedge stake that locks in a profit or cuts the loss on an open bet.

Arbitrage Bet Calculator

Splits stakes between two bookmakers so every outcome returns the same profit.

Dutching Calculator

Splits one stake across several selections so any winner pays the same profit.

Lay Bet Calculator

Shows a lay bet's liability and the profit it makes on an exchange after commission.

Matched Betting Calculator

Finds the lay stake that turns a qualifying bet or free bet into a near-equal result.

Wagering Requirements Calculator

Shows how much a bonus makes you wager and whether it is worth taking.

Sports Betting Tax Calculator

Estimates the federal and state tax you owe on sports betting winnings.

Each Way Bet Calculator

Shows an each-way bet's return if your horse wins, places or loses.

Horse Racing Calculator

Prices exacta, trifecta and superfecta tickets and estimates win, place and show payouts.

Poisson Distribution Calculator

Turns each team's expected goals into 1X2 odds and the likeliest scorelines.

Over/Under Goals Calculator

Turns expected goals into the probability and fair odds of over or under a goal line.

Martingale Calculator

Shows the capital each level of a martingale ladder needs as the price falls.

Anti-Martingale Calculator — Pyramid Winners

Shows how a position grows when you add to it after wins, and what a loss costs.

Monte Carlo Trading Simulator

Simulates thousands of trade sequences to show your odds of profit and of ruin.

ROI Calculator — Return on Investment

Shows the return on an investment in total and per year.

Betting ROI Calculator

Shows the return on everything you have staked and your profit per bet.

Break-Even Calculator

Finds the sales volume at which revenue covers fixed and variable costs.

Sharpe Ratio Calculator

Rates a strategy's return against the volatility it took to earn it.

Futures P&L Calculator

Works out the profit or loss of a futures position in points and dollars.

Options Profit Calculator

Shows a stock option's profit or loss, break-even and maximum profit and loss.

Position Size Calculator

Finds the lot size that risks exactly the share of your account you choose.

Risk Reward Calculator

Shows what a trade can win for each dollar it risks and the win rate it needs.

Forex Compounding Calculator

Projects month by month how your account grows when gains are reinvested.

Pip Calculator

Tells you what one pip is worth in your account currency for any pair and lot size.

Stop Loss Calculator

Places your stop-loss so a losing trade costs no more than you choose to risk.

Fibonacci Retracement Calculator

Lists the Fibonacci retracement levels between a swing high and a swing low.

Drawdown Calculator

Shows the gain you need to win back what a drawdown took from your account.

Forex Profit Calculator

Works out the profit or loss of a forex trade in your account currency.

Carry Trade Calculator

Shows the interest a carry trade earns per day, month and year.

Forex Margin Calculator

Shows the margin a forex position ties up and the free margin you have left.

Swap / Rollover Calculator

Shows the overnight swap a forex position pays or earns each day you hold it.

Forex Spread Calculator

Turns a spread in pips into what it costs you per trade and per year.

ATR Calculator

Turns the Average True Range into stop-loss distances that fit the market's volatility.

Forex Correlation Calculator

Shows how closely two currency pairs move together before you trade both.

Impermanent Loss Calculator

Shows how much a liquidity position trails simply holding the two tokens.

Yield Farming Calculator

Projects what a yield farming position earns per day and over any period.

Liquidation Price Calculator

Finds the price at which a leveraged crypto position gets liquidated.

Wei to ETH Converter

Converts amounts between wei, gwei and ETH in any direction.

Crypto Profit Calculator

Works out the profit or loss of a crypto trade after fees, and its break-even price.

Crypto Capital Gains Tax Calculator

Estimates the tax owed on a crypto gain under US, UK and other countries' rules.

DCA Calculator

Shows your average cost and return when you buy crypto on a fixed schedule.

Bitcoin Mining Calculator

Shows whether mining bitcoin pays once electricity costs are counted.

Staking Rewards Calculator

Projects the rewards a staked coin earns per day, month and year.

Crypto Funding Rate Calculator

Shows the funding a perpetual futures position pays or receives while you hold it.

Ethereum Gas Fee Calculator

Shows what an Ethereum transaction costs in ETH and dollars at the current gas price.

Crypto Options P&L Calculator

Shows a crypto option's profit or loss, break-even and maximum profit and loss.

Token Vesting Schedule Calculator

Shows how many tokens unlock each month under a cliff and vesting schedule.