Trading
Risk management, position sizing, growth and edge math for active traders.
Crypto
Crypto-specific tools — fees, exchanges, sizing.
Forex
Pip math and forex-specific sizing.
Journal & Analytics
Log trades, track performance, calculate edge metrics.
Options
Option P&L, break-evens, payoff diagrams.
Position Sizing
How much to put on each trade. The single biggest lever in trading.
Margin & Leverage Calculator
Required margin, capital used, and liquidation distance for any leveraged position.
Average Down / DCA Calculator
Blend multiple buys at different prices into a single average cost basis.
Kelly Criterion Calculator
The mathematically optimal position size based on your win rate and win/loss ratio.
Position Size Calculator
How many shares, units or lots to buy given your account size and risk tolerance.
Returns & Growth
Project where consistent returns compound to over time.
Risk Management
R:R, drawdown recovery, and the math that keeps you in the game.
Risk / Reward Calculator
Compute R:R ratio, break-even win rate, and expected value for any trade setup.
Drawdown Recovery Calculator
See exactly how much gain you need to recover from a drawdown. The asymmetry is brutal.
Sharpe Ratio Calculator
Measure your strategy's risk-adjusted return — the universal trader benchmark.
Trade the math, not the feelings
Profitable trading is mostly risk discipline, and discipline needs numbers. This niche is built for active traders who want to size a position correctly, cap their downside, and understand the real cost of a drawdown before they place an order. These are the calculations that separate a plan from a punt — and they have nothing to do with stock tips.
Start with the Position Size Calculator, which turns your account size and stop distance into the exact share or lot count to risk a fixed percentage. The Risk / Reward Calculator checks a setup is worth taking, and the Drawdown Recovery Calculator shows the brutal math — a 50% loss needs a 100% gain to recover. Forex traders use the Pip Value Calculator; options traders model payoff with the Options Profit Calculator.
What traders compute here:
- Position size for a fixed-percentage risk per trade
- Risk/reward ratio and expectancy of a setup
- Pip value and forex lot sizing
- Options profit/loss and Black-Scholes pricing
- Drawdown recovery, Kelly criterion and Sharpe ratio
No account, no upsell — just the risk math, free in your browser.