Polymarket Position Size Calculator

Calculator

Private browser calculation — values are not sent to us.

Calculating with the shown values…

Prefill from a link

Use the labeled field names as query parameters, such as ?cents=63. Only one finite value within each field’s displayed range is accepted; unknown, duplicate, and invalid parameters are ignored.

On this page

Use a simple risk cap. Position sizing cannot remove the possibility of loss.

How it works

The calculator takes the smaller of the entered risk percentage of bankroll and optional exposure cap, then divides it by the entry price.

Related tools

Expected Value Calculator · Portfolio Exposure Calculator

Use the result in context

Read a market page before relying on a number

Check the exact question, resolution rules and available market activity before using a calculator result for a real-world decision.

Frequently Asked Questions

Can position sizing remove the possibility of loss?

No. It applies the risk limit you enter; it cannot guarantee execution or protect a position from loss.

Should I use the result without reading the market?

No. Check the exact market, resolution rules and available prices before using any numerical estimate.