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Sailboat Specifications

J/37

Fractional Sloop · Fin W/Spade Rudder

Designed by Rod Johnstone · First built 1987

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LOA 37.00 ft  ·  Beam 12.08 ft  ·  Displacement 12,000 lb  ·  Sail Area 641 ft²  ·  Fractional Sloop  ·  Fin W/Spade Rudder
About the J/37 Sailboat

Designed by Rod Johnstone and introduced in 1987, the J/37 represents a refined blend of offshore performance and comfortable cruising capability from one of America's most respected sailboat lineages. Built in fiberglass with a fin keel and spade rudder configuration, this fractional sloop was produced in limited numbers through 1991, with only 52 hulls completed — making it a relatively rare find on today's used boat market. The J/37's sail area-to-displacement ratio points to a lively, responsive performer that rewards active sailors, while its comfort ratio suggests it can handle offshore passages without beating its crew into submission. The ballast-to-displacement proportion provides a confidence-inspiring stability margin for coastal and bluewater sailing alike. Its hull speed indicates the potential for strong passage times, consistent with the performance-oriented DNA found throughout the J/Boats lineup. With its wide beam contributing to both interior volume and initial stability, the J/37 appeals to sailors seeking a boat equally at home in weekend racing and extended coastal cruising. Its rarity, pedigree, and capable specifications make it worth serious consideration for buyers who want genuine offshore ability without sacrificing spirited sailing performance.

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Market Price Estimate Beta
Small sample size. This estimate is based on fewer than 5 listings and may not be representative of the true market. Use with caution.
$45,000 – $80,000
typical asking price
Median $80,000  ·  3 listings used
All listings
$45,000 – $80,000 3
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Dimensions & Specifications
LOA (Length Overall) 37.00 ft / 11.28 m
LWL (Waterline Length) 30.75 ft / 9.37 m
Beam 12.08 ft / 3.68 m
Max Draft 6.50 ft / 1.98 m
Displacement 12,000 lb / 5,443 kg
Ballast 4,800 lb / 2,177 kg
Sail Area (Reported) 641 ft² / 59.55 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Rod Johnstone
First Built 1987
Last Built 1991
Number Built 52
Related Sailboats X 372 · X 372 Sport · C&C 37 · Passport 37 · Swan 371
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Frequently Asked Questions

What is the J/37's sail area to displacement ratio?

The J/37 has a Sail Area to Displacement ratio (SA/D) of 19.43. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the J/37's comfort ratio?

The J/37 has a Ted Brewer Comfort Ratio of 28.95. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the J/37 safe for offshore sailing?

The J/37 has a Capsize Screening Formula value of 1.67. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the J/37?

The theoretical hull speed of the J/37 is 8.73 knots, calculated from its waterline length.

How much does a J/37 weigh?

The J/37 has a displacement of 12,000 lb and a length overall (LOA) of 37.00 ft.

How much does a used J/37 cost?

Based on 3 recent market listings, used J/37 sailboats typically sell for between $45,000 and $80,000, with a median asking price of $80,000. Price varies significantly based on year, condition, location, and included equipment.

Who designed the J/37?

The J/37 was designed by Rod Johnstone, first built in 1987.