About TradeCalc
A free online tool for calculating position size, stop-loss, take-profit levels and risk/reward ratio.
What TradeCalc does
TradeCalc is a set of free calculators for traders working with cryptocurrencies and stocks. The tool computes the optimal position size based on account balance, risk percentage, entry price and stop-loss level. Beyond sizing, the calculator also determines the stop-loss level from a percentage price move, builds multiple take-profit levels, and evaluates the risk/reward ratio for each target. All calculations follow standard risk-management formulas.
Main features
- Position size calculator for crypto and stocks
- Risk calculation as a percentage or absolute value
- Stop-loss calculator — by price, by percentage price move, or via the ATR method
- Take-profit level calculator — any number of levels, with individual share of the position
- Risk/reward ratio calculator for each take-profit target
- Breakeven win rate — the minimum win rate required for the strategy to be profitable
- Exchange fees taken into account — percentage or fixed per trade
- Live prices from Binance, Bybit and OKX
- Available in 4 languages: Ukrainian, Russian, English, Czech
Our principles
- Fully free — no PRO tiers, no paid features
- No signals, forecasts or recommendations on specific assets
- All formulas are open and documented in the guides
- Your data never leaves your browser — no registration, no servers, no tracking of trades
Formulas we use
All calculations are based on standard risk-management formulas used in professional trading:
Defines how many coins or shares to buy so that the loss on stop-loss equals exactly the specified risk in dollars.
The risk/reward ratio. The minimum acceptable R:R for most strategies is 1:2, a healthy range is 1:3 or higher.
Used when the trader sets the stop-loss as a percentage move from the entry price, rather than a specific level.
Shows the minimum percentage of winning trades required to break even at a given R:R. For example, at R:R 1:2 you need at least ~33% winners.
Who is it for
TradeCalc works for traders across different styles and experience levels:
- Spot crypto traders on Binance, Bybit, OKX and other exchanges
- Futures traders using leverage — the calculator shows real risk regardless of leverage
- Stock traders — both US markets and local exchanges
- Beginners who don't yet know technical analysis — the percentage stop-loss mode doesn't require knowledge of support levels
- Swing and day traders — any timeframe, from minutes to weeks
Why correct position sizing matters
Most traders lose money not because of poor market forecasts, but because of incorrect position sizing. Risking 10–20% of the account per trade means that a streak of three losing trades is enough to wipe out half the capital. The 1–2% rule lets you survive even a prolonged drawdown and stay in the market. A calculator isn't a substitute for a strategy — it's a tool that protects you from mistakes in the most critical component of trading: capital preservation.
Learning resources
Educational guides on risk management:
- How to calculate position size
- Risk management for traders
- How to set a stop-loss correctly
- All trader guides
Contact
For questions, suggestions or bug reports, email contact@tradecalc.app.
Disclaimer
TradeCalc is an educational tool, not financial advice. Trading involves the risk of total capital loss. Never trade with money you cannot afford to lose. TradeCalc is not responsible for trading decisions made based on calculator outputs.
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