Free DFS calculators
Know the payout before you build the card.
Use the PrizePicks payout calculator, Underdog flex payout calculator, and DraftKings Pick6 payout calculator to compare Power Play, Flex Play, Standard, Insurance, and fixed multiplier outcomes.
MLB Hitter Range Board
Compare current DraftKings MLB fantasy-point floor, projection, and ceiling estimates. Built for range-aware research, not lineup optimization.
Sports Betting Prompt Builder
Build a structured, skeptical prompt that requires current sources, counterarguments, missing-data disclosure, and a no-action conclusion when evidence is weak.
PrizePicks Payout Calculator
Calculate Power Play and Flex Play payouts for 2-6 picks, including 3/4, 4/5, and 5/6 Flex results.
Underdog Flex Payout Calculator
Check Standard and Flex payouts for 2-8 pick entries, including partial Flex outcomes on larger cards.
Pick6 Payout Calculator
Calculate Pick6 fixed multiplier payouts for 2-6 pick entries and compare the payout chart against other platforms.
Compare payout styles before you compare props.
The calculators answer the mechanical question first: what does this entry return if the card hits? Once the payout structure is clear, use Propeller to research which props deserve a spot on the card.