Calculate closing line value from your inputs, with a result breakdown and worked steps.
Closing Line Value Formula and Method
Price CLV = (bet decimal odds / closing decimal odds − 1) × 100
Compare the decimal price accepted with the closing price on exactly the same selection and line. Price-based CLV divides the earlier price by the closing price and subtracts one. A larger earlier price creates a positive percentage because it provides a larger return per unit stake.
How to Use This Calculator
Select the result and any applicable method before entering the visible values. Check the selected record, unit and scoring conventions before calculating. Review the primary result and its breakdown, then open the calculation steps to see how the inputs were used.
Worked Example
With the example inputs in the table, the result is 10%. A positive value means your entered price pays more than the closing price on the same selection.
Input and Example Guide
| Input or category | Example or weight | Entry guidance |
|---|---|---|
| Price when placed (decimal odds) | 2.2 | Use the stated unit; retain available precision. |
| Closing price for the identical selection (decimal odds) | 2 | Use the stated unit; retain available precision. |
| Price-based closing-line value | 10% | Calculated result for the entered example. |
Interpreting the Result
The separate implied-probability movement subtracts the reciprocals in percentage-point terms. It is not the same percentage as price CLV. A changed handicap, total, overtime rule or market margin can make the comparison misleading. CLV describes prices, not the profit actually settled on the ticket.
Compare identical lines and settlement terms. Unadjusted closing odds include margin; price CLV is not realized ROI or an estimate of true expected value.
Assumptions and Common Input Errors
A positive value means your entered price pays more than the closing price on the same selection. Keep the same currency and settlement conditions throughout a scenario. Displayed currency amounts are rounded to two decimals; calculations retain precision unless cent allocation is explicitly described.
Saving and Revising a Scenario
A successful calculation is saved in this browser and can be restored on the next visit. Editing an input clears the old result so it is not mistaken for an updated calculation. Reset returns the example inputs and clears the saved result.
Sources
Betfair Help, Decimal Odds and Stake-Inclusive Returns, reviewed 2026. Arithmetic and scenario assumptions are specified above.