Free tool
Line shopping calculator
See exactly how much money you leave on the table by not shopping for the best odds. Even a few cents of difference on every bet adds up to hundreds of dollars over a season.
Line shopping calculator
e.g. what we find
e.g. standard vig
Based on American odds · assumes same win rate across both lines
What it shows
Enter the line you'd take and a better number available elsewhere, plus your typical stake and bet volume. The tool projects the extra profit you'd earn over a season just by always taking the best price.
Why it's the highest-ROI habit in betting
Getting -108 instead of -115 adds about $0.60 per $100, with no extra handicapping skill required. Over hundreds of bets that's real money, and it's the one edge available to every bettor regardless of how good their picks are.
Frequently asked
Why does line shopping matter?
Getting -108 instead of -115 on the same bet adds roughly $0.60 of profit per $100 wagered. Over 500 bets a year that's $300 in extra profit, without winning a single extra game. Shopping for the best available line is one of the highest-ROI habits a sports bettor can build.
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