Free tools
Three small tools. No account.
Arithmetic on numbers you type in, for the decisions that come before a trade and the one that comes after it. The two calculators run entirely in your browser: nothing you enter is sent anywhere, stored, or used to follow you.
The tools
Before the trade
Position size calculator
How many shares or contracts keep a losing trade inside the risk you set. Handles CAD and USD accounts and instruments, with the exchange rate you supply.
Computes size, dollars at risk, position value, share of account.
Open the calculator →
Planning the trade
Risk-reward and R-multiple calculator
The ratio of a planned trade, the win rate it needs to break even, your result in R, and the expectancy of a set of trades.
Computes risk-reward, break-even win rate, result in R, expectancy.
Open the calculator →
After the week
Rule Check
Guess how often you kept your trading rules last week, then count, and see the gap between the two. About a minute.
Computes your guessed adherence against your counted adherence.
Take the check →
What leaves your device
Nothing, unless you choose to.
The two calculators
Each is one page and one script served from this site. The script makes no network request, writes nothing to storage and sets no cookie. Close the tab and the numbers are gone.
Rule Check
Your answers stay in the tab. The one thing that can leave it is an email address, and only if you type one in to be told when the app ships.
Educational only, not financial advice. The tools do arithmetic on what you enter; they do not know the market, your broker’s fills, or whether a trade is a good idea.