
100% PerfectOdds
Betfair
Bet Hero Sports
BetMetrics.app
BetMines Football Betting Tips
Bettingsuretips
BettorEdge
Eight free sports betting calculators — parlay, odds converter, hedge, Kelly, expected value, arbitrage and no-vig — connected to a bet slip that tracks your session.

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Website, pricing, platforms and company facts side by side.
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| Website | sharpoddsiq.com | opalstack.com |
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| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


SharpOddsIQ is a free set of eight sports betting calculators built to work together. Calculate parlay payouts, convert odds between American, decimal and fractional formats, find hedge amounts, size bets with the Kelly Criterion, check expected value, spot arbitrage, and remove the vig to find...
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As answered by people managing SharpOddsIQ and Opalstack.
SharpOddsIQ's answer
Save any calculation to a bet slip that follows you across every tool and tallies your running profit and loss.
Every calculator accepts American, decimal and fractional odds. Switch the format with a single tap.
Every tool shows the real math behind it with a clear, step-by-step numerical example.
No sign-up, no paywalls, no limits. Fast, accurate tools that work instantly in your browser.
SharpOddsIQ's answer
It's completely free, does not require any login, and it has a saving function called a bet slip that follows you across every tool and tallies your running profit and loss.
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