About MoneyWorkLab

What we offer today

The tools are designed as one account and risk management workflow. Three calculators are available now, in English and Korean:

• Kelly Criterion Calculator — turns your win rate and cost-adjusted payoff into Full, Half, and Quarter Kelly risk fractions.
• Position Size Calculator — works out a theoretical quantity, notional exposure, and margin at 1x–10x from your risk budget and stop-loss price.
• Trading Survival Simulator — runs 5,000 simulated accounts to show the range of ending balances and drawdowns over hundreds of trades.

More tools may be added over time. We only list a tool here once it’s actually available.

How the calculators work

Every calculation runs in your browser. There’s no sign-up and no account, and your inputs aren’t sent to our servers. The simulator uses the same random seed and the same win/loss sequence when it compares sizing methods, so results can be reproduced with the same inputs and seed.

You can read more about data handling, advertising, and analytics in our Privacy Policy.

What these tools are — and aren’t

They’re educational calculators. They show what follows from the assumptions you enter; they don’t analyze real prices or specific securities, and they don’t give trading signals, recommendations, or pass/fail verdicts on a strategy.

Real markets include things the models leave out, such as price gaps, changing slippage, liquidation rules, and shifting win rates. Results don’t guarantee any investment outcome.