Skip to content
Hull Gauge
Sheet 1015 · recomputed 5 Nov 2026, 03:30 UTC

12.3 m motor yacht by Formula · built 1999–2019 (boats seen)

Formula
400 Super Sport used price guide

Gauge Value
Firm · 25+ boats
£154,500€180,000$204,500

Middle half £107,500€125,500$144,000 – £230,500€269,000$298,500

median asking price of 44 boats listed since Mar 2021, in today's prices · asking, not sold

Watch

12.27 mbeam 3.35 mdraft 0.91 mfull specification

A used Formula 400 Super Sport asks a median of £154,500€180,000$204,500 across 44 boats listed since Mar 2021, in today's prices. Half sit between £107,500€125,500$144,000 and £230,500€269,000$298,500, and each year of age takes about 6.8% off.

01

The field

Each number is one boat: its asking price in thousands of pounds, at today's market level, set above the year it was built. The orange line is the model's middle price for its age; the shaded band holds the middle half. Tap a number to see the boat behind it. The price scale is logarithmic: each step up is the same percentage.

43 boats by year built · asking prices in £ thousands, in today's prices · listed since Mar 2021 · asking, not sold · log scale · middle line fitted on 43 boats
43 boats · fill in Your boat below to place yours on the field. 1 boat without a build year is not drawn.
02

Your boat

Estimated from the boats above. No email, no broker call.

Listed in
optional, in pounds
Gauge Estimate · Indicative
£134,000€156,500$180,000

Likely range £106,500€124,000$142,500 – £155,000€180,500$204,500

19 comparable boats built 2003–2009 · hours not given · all markets · asking, not sold

Add your asking price to see where it sits among boats like yours.

03

By year built

Median from five boats; middle half from ten. Below that we print nothing rather than a guess. Linked years have their own page with that year's boats. The spread is drawn on the field's logarithmic scale, in pounds.

YearBoatsMedianMiddle halfSpread
20192—too few boats
20181—too few boats
20172—too few boats
20162—too few boats
20151—too few boats
20141—too few boats
20132—too few boats
20122—too few boats
20112—too few boats
20100—none listed
20092—too few boats
20083—too few boats
20074—too few boats
20064—too few boats
20052—too few boats
20043—too few boats
20031—too few boats
20020—none listed
20013—too few boats
20003—too few boats
19993—too few boats

Across boats built 1999 to 2019, each year of age takes about 6.8% off the asking price.

04

What moves the price

Each factor compares boats of the same age, so a newer boat's premium isn't counted twice. Five boats or more on each side, or we say so.

Age

Each year of age takes about 6.8% off the asking price. This is the biggest single factor.

−6.8%per year of age · fitted on 43 boats
Diesel or petrol

Diesel boats ask about 4.5% more than petrol ones, age for age.

+4.5%Diesel 6 boats · against petrol 34

Asking prices, not sold. Factors can overlap, so treat these as a guide to what the market asks, not a formula.

05

Time to sell

36days

listed so far: the median of 36 boats seen on two or more dates

5.7%

have cut their asking price: 2 of 35 boats seen at least 14 days apart

—

median size of a cut · withheld: fewer than five cuts to measure

These are asking prices, and asking is not selling. Days listed so far is not time to sell: a boat still listed has not sold, and we do not yet record when a listing ends. We have not measured how far sale prices land below asking; the methodology says what we can and cannot measure.

06

Cost to keep

A year on a South Coast marina berth, insured at the Gauge Value, in pounds. An estimate from published rates, not a quote.

Depreciation£10,4506.8% a year of age on the fitted curve, at the Gauge Value
Berthing£6,900annual band for the region, Lake Yard marina berth, 12-15 m; Marina berth, South Coast · Lake Yard price list 2026 · BerthFinder
Maintenance and repairs£11,6005% to 10% of a value of £154,500 a year (maintenance, older boats) · Boatsetter
Lift-out and antifoul£60012.3 m at the cited rate per metre (Lake Yard: lift, hold, pressure wash, relaunch, plus antifoul labour) · Lake Yard price list 2026
Insurance£1,5500.5% to 1.5% of a value of £154,500 a year · Velos Insurance; Admiral Yacht Insurance
Engine servicing—not estimated: labour rates are cited, but no source publishes the hours a service takes
A year of ownership£31,100 £2,590 a month

Fuel is not included: no cited source gives the engine hours a typical owner runs in a year.

08

Questions about the Formula 400 Super Sport

How much is a used Formula 400 Super Sport worth?

The median asking price is £154,500, from 44 boats listed since Mar 2021, in today's prices; half sit between £107,500 and £230,500. Each year of age takes about 6.8% off. For a specific boat, use Your boat above.

How long does a Formula 400 Super Sport stay on the market?

We do not measure time to sell yet. Across 36 boats seen on two or more dates, the median time between first and last sighting is 36 days so far. 5.7% of 35 boats seen at least 14 days apart have cut their asking price.

How fast does a Formula 400 Super Sport lose value?

About 6.8% of its asking price for each year of age, fitted on 43 boats built 1999 to 2019. On a boat at the median that is about £10,450 a year.

Are these sold prices?

No. They are asking prices observed on public listings, restated at today's market level. We have not yet measured how far sale prices land below asking, so we do not publish a figure for it.

09

About the Formula 400 Super Sport

The boats behind this page were built between 1999 and 2019 and have been listed since Mar 2021, most often in the US market. 5.7% of the boats seen at least 14 days apart have cut their asking price.

How we measure: we read public listings from brokers and marketplaces, count a boat once when it appears on several sites, store its asking price each time it changes, and restate older asking prices at today's market level. We never republish a listing, a photograph or a seller. Every figure is recomputed nightly and dated; below five boats we publish nothing. The 44 boats here were listed in the US. Full methodology

Length overall
12.27 mfrom listings · 35 boats
Beam
3.35 mfrom listings · 42 boats
Draft
0.91 mfrom listings · 18 boats
Built
1999–2019from listings · 43 boats
Type
Motor yachtour classification