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Compare odometer readings

Enter dated readings from documents you already hold. Spot possible mileage reversals or unusually large jumps before buying. No vehicle database is checked.

Your evidence, not official verification: All readings are entered by you. Mileage differences can result from unit changes, replacement instruments, mistaken dates, input errors or repairs. Neither a warning nor a lack of warnings proves odometer fraud or a clean history. Your readings stay in this browser tab and are not saved or sent to our servers.

Documented readings

Enter 2–12 observations with the date, amount, unit and where you read it. Enter the value printed on the original document; the calculation converts miles to kilometres automatically.

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Add readings and select Compare readings. Your entries are not retained after leaving this page.

The threshold for an unusually large jump is an illustrative 100,000 km per year, not a legal standard or proof of a defect. Short time intervals can produce misleading annualized rates. Verify documents independently.

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