Betting calculators

Free tools for the math behind a bet, built on how often real NFL and college games ended on each exact score. They work out prices. They don't make picks.

• Half-point calculator Is -3 at -120 better than -3.5 at +105? Compare two prices for the same bet.
• Spread to moneyline The fair moneyline for any spread, and whether the spread or the moneyline is the cheaper bet.
• Teaser calculator Each leg's real chance after the points, and whether the teaser price is worth it.
• Alternate lines A fair price for every alt spread and total, and how much your book's price costs you.

4,440 NFL games (2010 on, closing lines from nflverse) and 8,147 college games (2016 on). Past results don't predict future ones. 21+.