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The same line math behind every CFB read we post. Convert odds, strip the vig, size a bet honestly, and check whether you beat the close. Every formula is shown and every calculation runs in your browser. Market-neutral: these compute numbers, they do not predict outcomes.

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Free · no login · shareable result De-vig calculator Paste both sides of a two-way market, get the fair line, the implied probability per side, and the vig. One dedicated page, built to share. Open →

Core math

Odds converter American, decimal, fractional, and implied probability. Type in any field, the rest follow. Open → No-vig / de-vig Strip the book’s vig to a fair implied probability. Handles 2-way and 3-way markets, shows the hold. Open → Expected value (EV) Turn a win probability into a decision. EV per dollar and per stake at the price you are offered. Open → Parlay Combine legs into one ticket: payout, combined true probability, and the total edge if any. Open →

Sizing

Hedge Size a hedge on the other side to lock a profit or cap a loss across two books. Open → Arbitrage Detect a 2-way arb, size both legs, and show the guaranteed profit percent if it exists. Open → Kelly stake Full and fractional Kelly sizing for an edge you actually believe in. As good as your estimate. Open → Bankroll / unit sizing Set a unit as a percent of bankroll, then size any play in units against it. Open →

Edge & proof

CLV tracker Enter your bet odds and the closing odds. We de-vig both and show whether you beat the close, by how much. Open →

These are market-neutral utilities. They reduce the vig you pay and size a bet you have already decided on. They are not predictions and not a guarantee of profit. Compare lines across books. 21+ · research, not advice.