A boat's value is best estimated by comparing the year, make and features to other boats of similar status within a defined geographical area. Kelley Blue Book has an estimator for boat values under Personal Watercraft Values. Nadaguides.com has an estimate calculator that accounts for boats with special features and extra equipment.
The American Boating Association recommends NADAGuides for the most accurate estimates. To use the NADAGuides estimate calculator, first input your ZIP code, then select the boat's manufacturer followed by year and model. Next, there is a choice between continuing to the estimate for the basic model or selecting additional features to get a more accurate estimate. Such features include electronics, optional equipment for entertainment or comfort, canvas accessories and jet drive. To get the most accurate estimate, provide as much information about features and equipment as possible.
The Kelley Blue Book estimate calculator has fewer manufacturer options and does not allow users to input additional features or equipment.
NADAGuides provides estimates for boats in new, good, and poor condition, where good reflects a reasonable trade-in or resell value, and poor reflects only potential resell value and should not be considered a trade-in value. As of 2015, Kelley Blue Book lists estimates only for boats in good condition.