Find your perfect forex lot size

Stop blowing accounts. Your position sizing automatically accounts for slippage, spread, and commissions so your risk stays accurate.

Features

Seamless - right in your browser

Instantly calculate correct forex lot size right inside your browser — no switching tools.

You control everything

Works for live accounts, demos, evaluations, and prop firm challenges with strict drawdown limits.

Consistent risk

Accurately factors slippage, spread and commissions — so your risk stays truly correct.

Correct lot size. Every trade. Zero excuses.

Add dynapips to your Chrome browser and calculate lot sizes with confidence.

Add to Chrome