Get a quick planning value from price new, age, engine hours and condition. It is a starting point, not an appraisal: confirm it with J.D. Power values and recently sold boats.
Estimate a planning value from price new, age, engine hours and condition, then check it against J.D. Power and sold listings
Enter what the boat and engine cost new, the model year, typical engine use and condition. The calculator applies a fixed depreciation curve, then adjusts for engine hours, condition, a documented repower and saltwater use. It shows a planning value, an illustrative ±12% private-sale band and a trade-in figure at 80% of the planning value.
It does not look up your make and model or read sales data. If you do not know the original price, find the MSRP for the same model year and engine package first.
When people search "boat blue book" or "KBB boat values", the guide most buyers, sellers and lenders mean is J.D. Power's marine values, formerly NADA Guides. Kelley Blue Book is known for cars, so start with J.D. Power for a boat. Listing marketplaces such as Boat Trader also offer price checkers built from their listing data.
A guide value is still an average for a typical boat. Engine hours, maintenance records, hull condition, electronics and local demand can move a real sale price well above or below it.
Share of the original price kept before condition and hours adjustments. These are planning assumptions, not measured market data.
| Boat age | Value kept | Example: $40,000 new |
|---|---|---|
| 1 year | 85% | $34,000 |
| 3 years | 74% | $29,400 |
| 5 years | 62% | $24,800 |
| 10 years | 47% | $18,800 |
| 15 years | 40% | $15,800 |
| 20 years | 32% | $12,800 |
| 32+ years | 20% floor | $8,000 |
Popular models with strong local demand can hold value better; neglected boats or discontinued engines can fall faster.
These are fixed assumptions to compare scenarios, not verified market premiums.
Engine hours and service records matter most to buyers, followed by hull and deck condition (soft spots, blisters, stress cracks), upholstery, electronics and the trailer. A survey that finds a wet transom or stringers can erase thousands of dollars from any guide value.
Guide values usually price the boat and engine. A trailer is often valued separately, so add a road-ready trailer's value on top when it is included in the sale. Use the Boat Trailer Value Calculator to estimate that part, and decode its trailer VIN to confirm the year.
A dealer trade-in is usually below a private sale because the dealer takes on reconditioning, holding cost and risk. The calculator models trade-in at 80% of the planning value and a private-sale band of ±12%. Real offers vary widely by dealer, season and how quickly you need to sell.
Decode the HIN for the builder and model year, and note the engine make, horsepower and hours. A value for the wrong year or engine package is meaningless.
Use this calculator for a quick range, then look up the same boat and engine in J.D. Power (formerly NADA Guides).
Compare three or more similar boats that actually sold nearby, not just asking prices. For purchases, financing or insurance, a marine survey gives the defensible number.
Start with this calculator for a planning range, then check J.D. Power values for the same model year and engine, and compare boats that recently sold nearby. Condition, engine hours and records usually decide where in the range your boat lands.
Kelley Blue Book is known for car values. For boats, the commonly used guide is J.D. Power (formerly NADA Guides), which many lenders and dealers reference.
They are a useful average for a typical boat with a typical engine. They cannot see your boat’s condition, hours or local demand, so treat them as a reference point and confirm with sold comparables or a survey.
Most of the drop happens in the first few years. This calculator assumes 15% in year one and about 38% by year five, then a slower decline. Actual depreciation varies by brand, type and market.
Yes. Buyers compare hours to the boat’s age. Around 25 to 75 hours a year is often treated as typical; very high hours or no hour meter usually lower offers unless there are service records or a recent repower.
Often not. Many guides value the boat and engine, so a trailer is added separately. Estimate it with the boat trailer value calculator.
For any significant purchase, yes. A survey checks hull, structure and systems, and lenders and insurers often require one. See the boat survey cost guide for what it usually includes.
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Reviewed by Premium Boatcare Team