Free calculator
Half Point Calculator
Is buying a half point worth the extra juice?
Enter the spread, points to buy, and the extra vig to see whether buying the hook is worth it.
Original spread3
Adjusted spread2.5
Win-prob change7.8 pts
VerdictWorth buying
When is buying a half point worth it?
Buying a half point moves the line in your favor for extra juice. It’s only worth it when the half point crosses a “key number” — the margins games land on most often (3 and 7 in the NFL). Off a key number, the extra vig usually costs more than the points are worth.
Sharp App does this automatically across 100+ sportsbooks and apps — see the EV Tracker.
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