Tools · Free
Betting tools that help you price the bet.
Free calculators and handicapping tools from OutpriceTheBook. No login, no account, no email — open a tool and use it.
OTB signature tools
Tools for the work around the bet: the weather, your own number, variance, exposure and discipline.
- Free
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Football Weather Impact
Game-time forecast for NFL and college stadiums, translated into what the conditions may mean for football.
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Signature tool
Build Your Own Fair Line
Add up your own adjustments into your own spread, then compare it with the sportsbook line.
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Signature tool
Losing Streak & Drawdown Simulator
Simulate thousands of betting runs to see how deep drawdowns and losing streaks can go — even with an edge.
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Signature tool
Daily Risk & Exposure
See your open exposure as a share of bankroll before you add another bet — against limits you set.
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Signature tool
Bet Quality Check
A pre-bet checklist that flags missing information, price problems and risk issues before you bet.
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Betting math
The arithmetic behind every price: odds formats, implied probability, the vig and expected value.
- Free
Betting math
Odds Converter
Convert American, decimal and fractional odds and see the implied probability.
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Betting math
No-Vig / Fair Odds
Remove the sportsbook's margin from a two-way (or three-way) market to get fair probabilities and odds.
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Betting math
EV & Break-Even
Expected value, expected ROI and break-even probability at your own win-probability estimate.
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Price first, then the pick
Every sportsbook price implies a probability. These calculators turn odds into implied probability, strip out the vig to find fair odds, and show the expected value of a bet at your own estimate — the basic checks behind any bet worth making.
Plan for the swings
Variance is part of betting. The drawdown simulator shows how deep losing streaks can run even with an edge, the risk calculator keeps exposure inside limits you set, and the weather and fair-line tools help you build your own number before you compare it with the market.
Every tool runs on your own inputs and textbook betting math. None of them use, reveal or approximate the private OutpriceTheBook model, and nothing you type in a calculator is stored.