Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Estimated annual value of line shopping
$344
Value per bet
$1.15
Decimal odds improvement (×100)
4.33
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How to use this
- 1Enter average stake per bet ($).
- 2Enter typical odds you'd get at one book (american).
- 3Enter best odds after shopping (american).
- 4Enter your assumed win rate (%).
- 5Enter bets placed per year.
- 6Read your estimated annual value of line shopping on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
Line shopping means checking multiple sportsbooks before placing a bet and taking whichever offers the best price on the side you want, rather than betting wherever is convenient. The difference between an average price and the best available price is usually small on any single bet, often just a few cents of odds, but it compounds significantly across a full season of betting volume. This calculator estimates the annualized dollar value of consistently getting a specified average odds improvement across your typical betting volume, converting a seemingly trivial per-bet edge into a concrete number that makes the case for maintaining accounts at multiple books. Getting -105 instead of -110 on every bet doesn't feel like much bet to bet, but across hundreds of wagers a year it functions like a permanent improvement to your win-rate requirement, lowering the bar you need to clear to be profitable overall.
Worked example
Using the values the calculator loads with:
Inputs
- Average stake per bet: 50 $
- Typical odds you'd get at one book (American): -110
- Best odds after shopping (American): -105
- Your assumed win rate: 53 %
- Bets placed per year: 300
Results
- Estimated annual value of line shopping: $344
- Value per bet: $1.15
- Decimal odds improvement (×100): 4.33
What each field means
Inputs
- Average stake per bet ($)
- The average stake per bet used in the calculation, measured in $. Starts at 50 $ so you have a working example on load.
- Typical odds you'd get at one book (American)
- The typical odds you'd get at one book (american) used in the calculation. Starts at -110 so you have a working example on load.
- Best odds after shopping (American)
- The best odds after shopping (american) used in the calculation. Starts at -105 so you have a working example on load.
- Your assumed win rate (%)
- The your assumed win rate used in the calculation, measured in %. Starts at 53 % so you have a working example on load. Accepted range: 1–99 %.
- Bets placed per year
- The bets placed per year used in the calculation. Starts at 300 so you have a working example on load.
Results
- Estimated annual value of line shopping
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Value per bet
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Decimal odds improvement (×100)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
Is a 5-cent odds difference (-110 vs -105) really worth tracking accounts at multiple books?
Yes, especially at real volume. A bettor placing 300 bets a year at $50 average stake with a 53% win rate gains real, non-trivial money over a season just from that single 5-cent improvement, since it applies to every single wager rather than being a one-time saving.
How many sportsbooks do serious bettors typically use?
Many volume bettors maintain accounts at 4-8+ books specifically to shop lines, since different books adjust their numbers independently based on their own liability and customer base, meaning the best price on any given bet can come from a different book each time.
Does line shopping matter more for favorites or underdogs?
The dollar impact scales with stake size and bet frequency more than favorite/underdog status, but odds differences tend to be proportionally larger on underdogs (a 10-point swing on a +200 dog is more implied-probability impact than 10 points on a -110 line), so shopping matters across your entire bet mix, not just one bet type.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Arbitrage Stake Split Calculator
Split stakes across two books to lock in profit from a pricing gap.
Closing Line Value (CLV) Calculator
Measure whether you beat the market's final price, independent of the result.
No-Vig Fair Odds Calculator
Strip the sportsbook's hold out of a two-way line to find fair odds.
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Line Shopping Value Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/line-shopping-value-calculator
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/line-shopping-value-calculator" target="_blank" rel="noopener">Line Shopping Value Calculator — RevenueLab</a> (2026).</p>
Source: [Line Shopping Value Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/line-shopping-value-calculator) (2026).