AutoCalcul

Free calculator · Energy, financing, resale · 2026

Depreciation and resale value calculator

Depreciation is the largest cost item of a car. AutoCalcul’s used-car valuation engine starts from an age curve calibrated on the Belgian market, then adjusts it for mileage, powertrain, body type, brand and condition.

Your parameters

Examples:
€

The brand’s perception on the used-car market modulates depreciation (e.g. Toyota, Dacia, DS).

years
km

Leave blank if you do not know: the full calculation identifies it from its reliability catalogue.

Result

Estimated resale value

€20,937

As a share of the new price
59.8%
Depreciation since new
€14,063
Average annual depreciation
12.1%
Brand perception
Average

Depreciation curve at the same mileage rate

AgeMileageEstimated valueShare of new price
115,000 km€29,05083.0%
230,000 km€25,56473.0%
345,000 km€23,00865.7%
460,000 km€20,93759.8%
575,000 km€19,15754.7%
690,000 km€17,43349.8%
7105,000 km€15,38844.0%
8120,000 km€14,00340.0%
Calculate the full true cost

The full calculation anchors this valuation on the price you actually pay and adds it to energy, taxes and taxation: the true monthly cost.

Worked examples 2026

Calculated by the same engine as the full true cost calculation, never estimated by an AI.

Golf eTSI (€36,840), 4 years, 60,000 km

Estimated resale value

€21,906

As a share of the new price
59.5%
Depreciation since new
€14,934
Average annual depreciation
12.2%

Tesla Model 3 (€35,990), 3 years, 75,000 km

Estimated resale value

€20,883

As a share of the new price
58.0%
Depreciation since new
€15,107
Average annual depreciation
13.9%

Dacia Sandero TCe (€15,890), 5 years, 50,000 km

Estimated resale value

€11,012

As a share of the new price
69.3%
Depreciation since new
€4,878
Average annual depreciation
7.8%

How it is calculated

Base curve: −17% in year 1, −12% in year 2, −10% in year 3, −9% in year 4, then −8.5 to −9% per year (partial years pro rata)
Depreciation multipliers: body type × powertrain × brand × model × reliability × price range × gearbox
Value adjustments: deviation from normal mileage (15,000 km/year), psychological thresholds (100,000 / 150,000 / 200,000 km), condition · floor 6% of new price (min. €500)

The used-car valuation engine starts from a depreciation curve by age, calibrated on thousands of Belgian listings (AutoScout24) and revalidated by an automated benchmark. Each factor (body type, powertrain, brand perception, known engine reliability, price range, gearbox) modulates the annual depreciation rate.

Mileage then acts on the value: a deviation from 15,000 km per year translates into a premium or an additional discount, with steps at the psychological thresholds of 100,000, 150,000 and 200,000 km. General condition and a floor value complete the calculation.

In the TCO, this valuation is anchored on the actual purchase price: resale value = purchase price × valuation at resale / valuation at purchase. When a RestWaardeBox market value is available, it takes priority.

Frequently asked questions

How much does a car lose in the first year?

About 17% of its new price on average on the Belgian market, then 12% in the second year and 10% in the third. After four years, a car is typically worth 55% of its new price; after eight years, about 35%.

Do electric cars depreciate faster?

Not in the first years, according to the 2026 benchmark of Belgian listings: at the new price actually paid, a recent electric car depreciates slightly more slowly than a petrol car up to three years, then at the same pace. The engine applies a multiplier by powertrain that depends on age, and re-accelerates depreciation from eight years, at the typical end of the battery warranty.

What influence does mileage have?

The market values a car relative to 15,000 km per year. Driving 30,000 km per year loses several points of value each year, and crossing 100,000 or 150,000 km causes an additional step in the prices displayed.

Is this estimate as good as an official valuation?

It is a statistical estimate, not an appraisal. In the TCO, it is replaced by the RestWaardeBox market value (private channel) when available, or by the value you enter.