Get the number.
Then keep it.
Position sizing, expectancy, R-multiples, earnings and macro calendars. Every tool answers in one screen with no account. Log the trade in Sutekka and the same math starts running on your real fills.
The options suite lives on the app.
Build multi-leg positions — spreads, condors, butterflies, ratios — and see max profit, max loss, breakevens, and the full payoff curve before you place the trade. No spreadsheet.
13 tools, no account.
A calculator answers once.
You size the position, close the tab, and the number is gone. Sutekka keeps it, so the same math runs on your actual fills instead of a hypothetical.
Size it here
Free, instant, no account. Get the share count, the R:R, the breakeven win rate.
Log it there
Under 30 seconds, or auto-imported from 10+ brokers. Every fill scored in Rs automatically.
Read it back
100 trades in, your expectancy stops being an estimate. Win rate by setup, time of day, max drawdown.
Keep the tools. Take the journal too.
30 trades a month on the free tier. Sign up in under 60 seconds — no card.
Every tool, one by one.
13 free tools: no login, no paywall, no email gate, and a shareable URL on every calculator. The options strategy suite is the one exception — it runs on the Sutekka app.
Calendars
Risk & sizing
How many shares (or contracts) to buy, given your account, entry, stop, and risk %.
Entry, stop, target → R:R ratio and the win rate you need to break even.
Win rate, average win, average loss → expected value per trade.
Optimal bet sizing: f* = W − (1 − W) / R. Most traders use a fraction of full Kelly.
Performance & growth
Entry + target → exact P&L for stocks, crypto, options, and futures.
How many Rs (units of initial risk) a closed trade actually made or lost.
A 50% drawdown needs a 100% gain to recover. See the full curve.
Starting capital, return rate, number of periods → final value and growth curve.
Compound annual growth rate between a starting and ending account value.