Posize is a simple yet powerful crypto position size calculator created to help traders manage their risk with precision. In a market where emotional trading can lead to heavy losses, Posize offers a data-driven way to calculate exactly how much to invest per trade — whether you’re going long or short.
The crypto space moves fast — and so do emotions. Many traders jump into trades without understanding how much of their account they’re risking. Our goal with Posize was to create a free, no-login, browser-based tool that instantly calculates:
These simple, actionable calculations allow you to trade smarter, not harder — and avoid the #1 reason traders fail: poor risk management.
Posize is designed for both beginner and experienced crypto traders. Whether you scalp altcoins or hold long-term trades on platforms like Binance, Bybit, KuCoin, or Coinbase, this tool adapts to your strategy. It's also helpful for those who use stop-loss levels consistently and follow a fixed risk percentage per trade.
Posize started as a side project to help a few friends trade smarter. Now, it’s helping thousands of traders worldwide. And it’s just getting started. In the near future, we aim to add:
If you have feedback, suggestions, or want to contribute, feel free to reach out. Posize is made by traders, for traders.