Free tools
Free trading calculators and tools
Nine tools for the numbers behind a trade: how much to risk, what an edge is worth, where the levels are and when the market is open. No sign-up, nothing saved.
Each tool sits at the top of its page, followed by a short guide: how to use it, the formula in plain words and a worked example with real numbers. The lessons explain the ideas in depth, and the trading glossary defines every term.
The tools are for learning and planning. They do the arithmetic on the numbers you enter; they cannot tell you whether a trade will work.
Risk and position sizing
Size each trade so a losing streak stays survivable.
- Position size calculatorShares to buy from your account, risk % and stop.Open the tool →
- Kelly criterion calculatorFull, half and quarter Kelly from your win rate and payoff.Open the tool →
- Trading expectancy calculatorExpected value per trade in $ and R, with a sample-size check.Open the tool →
- Risk of ruin calculatorOdds of a deep drawdown, from 3,000 simulated trade sequences.Open the tool →
Chart analysis
Turn a swing on the chart into price levels.
Options
See a long option’s payoff before you buy it.
Investing
Long-term growth and your average cost per share.
Market hours
Know when US stocks trade, in your time zone.
Every tool runs in your browser. Nothing you type is saved or sent anywhere.
UpTickFlow is our product. These guides are education, not financial advice. Trading involves a substantial risk of loss.