Free Tools

Free DFS & betting calculators

No signup, no paywall — the math tools serious players keep open in another tab. Every one runs entirely in your browser.

Implied Team Totals Free

Split a game total by the spread to find the best stack spots.

Bankroll Calculator Free

Size entries and cap daily risk so variance never busts you.

EV / ROI Calculator Free

Convert odds to probability and check if a bet is +EV.

Lineup CSV Converter Free

Format a lineup into a contest-ready DK/FD upload row.