Each calculator, on its own page
Same tools, with the maths explained and the questions answered.
- Position size calculator — Account, risk %, stop → the exact size to trade.
- Risk / reward calculator — Entry, stop, target → the ratio and the win rate it needs.
- Compound growth calculator — Average gain per trade → the curve and the ending balance.
- Drawdown recovery calculator — A loss → the gain needed to get back to even.
Position Size & Risk Calculator
Work out exactly how big your trade should be so a stop-out only costs your planned risk.
$
%
$
$
Position size—
Amount at risk—
Risk per unit (entry → stop)—
Position value—
Formula: position size = (account × risk %) ÷ distance to stop. Risk a fixed small % (pros use 1–2%).
Risk / Reward Calculator
See your reward-to-risk ratio and the win-rate you’d need just to break even.
$
$
$
Reward : Risk—
Risk (entry → stop)—
Reward (entry → target)—
Breakeven win-rate needed—
Aim for at least 1:1 — ideally 1:2 or better. Breakeven win-rate = 1 ÷ (1 + reward-to-risk).
Compound Growth
See how a steady average gain (or loss) per trade compounds over time.
$
%
Ending balance—
Total return—
Profit / loss—
Compounding cuts both ways — a steady negative edge shrinks the account just as fast. This assumes a constant average; real results vary trade to trade.
Drawdown Recovery
The brutal math: a loss needs a bigger gain to get back to even.
%
Gain needed to recover—
Formula: required gain = drawdown ÷ (1 − drawdown). This is why protecting capital beats chasing gains.
Like these tools? Get the Trading Journal.
The RiskFirst Trader’s Edge: Risk & Strategy Journal turns these numbers into a daily habit — a 64-page workbook plus an auto-calculating spreadsheet to plan, size, log and review every trade. Built to pair with this toolkit.
See the Journal →Or grab the free 2-page cheat sheet (PDF) — no email needed.