Car Depreciation Calculator

Car Depreciation is evaluated from Current or Purchase Price, Current Age of Vehicle and Project Value This Many Years Ahead. The calculation reports Estimated Future Value, Total Depreciation and Avg Annual Depreciation.

Results

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About the Car Depreciation Calculator

Car Depreciation is treated here as a quantitative relation between Current or Purchase Price, Current Age of Vehicle, Project Value This Many Years Ahead and Vehicle Type and Estimated Future Value, Total Depreciation, Avg Annual Depreciation and Value Retained.

The calculator uses a multi formula configuration. Each reported value is read as a direct evaluation of the stored rules with the declared field formats and units.

Formula basis:
Year 1 depreciation: 15 - 25% based on vehicle type
Subsequent years: 12 - 18% declining balance per year
Future value = purchase price x (1 - year1 rate) x (1 - annual rate)^(remaining years)
Note: these are averages. Actual depreciation depends on: mileage, condition, color, option packages, local market, and timing. Use Kelley Blue Book (KBB) or Edmunds for real-time values.

Interpret the outputs in the order shown by the result fields. Optional inputs affect only the outputs that depend on those variables.

Formula & How It Works

The calculation applies the following relations exactly as recorded in the metadata:

Year 1 depreciation: 15 - 25% based on vehicle type
Subsequent years: 12 - 18% declining balance per year
Future value = purchase price x (1 - year1 rate) x (1 - annual rate)^(remaining years)
Note: these are averages. Actual depreciation depends on: mileage, condition, color, option packages, local market, and timing. Use Kelley Blue Book (KBB) or Edmunds for real-time values.

Each output field is produced by substituting the supplied inputs into the relevant relation and then applying the declared rounding or text format.

Worked Examples

Example 1: New Toyota RAV4: $35,000, project 5 years ahead (mainstream SUV)

Inputs

purchase_price: 35000 age_years: 0 years_ahead: 5 vehicle_type: Mainstream sedan/SUV (Toyota, Honda, Subaru)
Estimated Future Value: $14,616. Total Depreciation: $20,384. Avg Annual Depreciation: $4,077/yr. Value Retained: 41.8%

With Current or Purchase Price = 35,000, Current Age of Vehicle = 0, Project Value This Many Years Ahead = 5 and Vehicle Type = Mainstream sedan/SUV (Toyota, Honda, Subaru) as the stated inputs, the result is Estimated Future Value = $14,616, Total Depreciation = $20,384 and Avg Annual Depreciation = $4,077/yr. Each value corresponds to the declared output fields.

Example 2: BMW 5 Series (new): $65,000, project 5 years (luxury)

Inputs

purchase_price: 65000 age_years: 0 years_ahead: 5 vehicle_type: Luxury/German (BMW, Mercedes, Audi, Cadillac)
Estimated Future Value: $23,510. Total Depreciation: $41,490. Avg Annual Depreciation: $8,298/yr. Value Retained: 36.2%

With Current or Purchase Price = 65,000, Current Age of Vehicle = 0, Project Value This Many Years Ahead = 5 and Vehicle Type = Luxury/German (BMW, Mercedes, Audi, Cadillac) as the stated inputs, the result is Estimated Future Value = $23,510, Total Depreciation = $41,490 and Avg Annual Depreciation = $8,298/yr. Each value corresponds to the declared output fields.

Example 3: Ford F-150 pickup: $45,000 new, project 3 years

Inputs

purchase_price: 45000 age_years: 0 years_ahead: 3 vehicle_type: Truck (Ford F-150, RAM, Silverado, Tundra)
Estimated Future Value: $27,878. Total Depreciation: $17,122. Avg Annual Depreciation: $5,707/yr. Value Retained: 62%

With Current or Purchase Price = 45,000, Current Age of Vehicle = 0, Project Value This Many Years Ahead = 3 and Vehicle Type = Truck (Ford F-150, RAM, Silverado, Tundra) as the stated inputs, the result is Estimated Future Value = $27,878, Total Depreciation = $17,122 and Avg Annual Depreciation = $5,707/yr. Each value corresponds to the declared output fields.

Example 4: 3-year-old Honda Civic: $18,000 current value, project 4 more years

Inputs

purchase_price: 18000 age_years: 3 years_ahead: 4 vehicle_type: Mainstream sedan/SUV (Toyota, Honda, Subaru)
Estimated Future Value: $9,396. Total Depreciation: $8,604. Avg Annual Depreciation: $2,151/yr. Value Retained: 52.2%

With Current or Purchase Price = 18,000, Current Age of Vehicle = 3, Project Value This Many Years Ahead = 4 and Vehicle Type = Mainstream sedan/SUV (Toyota, Honda, Subaru) as the stated inputs, the result is Estimated Future Value = $9,396, Total Depreciation = $8,604 and Avg Annual Depreciation = $2,151/yr. Each value corresponds to the declared output fields.

Common Use Cases

  • Estimate car resale value after 3, 5, or 10 years
  • Calculate annual depreciation cost of owning a vehicle
  • Compare depreciation between new vs used car purchases