Free tools · no sign-up · nothing leaves your browser
Do the arithmetic before the market does.
Three calculators that do one job each. Everything runs locally in your browser; nothing you type leaves your device.
Calculators
Calculator
Position Size Calculator
Convert a risk percentage into a number of units, given where your stop sits.
Use it: Before every trade — the one number that decides how much a wrong idea costs.
Open the calculator →
The lesson behind it: Position sizing explainedCalculator
Risk/Reward Calculator
Turn an entry, a stop and a target into a ratio — and into the win rate that ratio would need to break even.
Use it: When deciding whether a setup is worth taking at all, given how often you are right.
Open the calculator →
The lesson behind it: Risk/reward and expectancyCalculator
Trading Fee Calculator
Estimate what a round trip costs, and how far price must move before you are back to flat.
Use it: When choosing an exchange, and before any strategy that trades small and often.
Open the calculator →
The lesson behind it: The costs of a round trip
Self-checks, finders and reference
Self-check · 5 minutes
Beginner assessment
Six questions that point you at the right first course — and the ones you can skip.
Open →
Questionnaire
Exchange finder
Where you live, what you trade, how much you know — one best fit, its weakness, and an alternative.
Open →
Table
Exchange comparison
Fees, demo accounts, proof of reserves and who each exchange will not accept, side by side.
Open →
Reference
Glossary
Every term in the courses, in a sentence or two, searchable.
Open →