Engine Displacement Calculator
Engine size in cc & L.
Open →Estimate a car’s value after any number of years.
| Total lost | — |
|---|---|
| % of original | — |
| Purchase price | — |
| Years | — |
A car loses value fastest early on. This calculator uses the declining-balance method: each year the car keeps the same percentage of the previous year’s value, so a 15%-a-year rate leaves a $30,000 car worth about $13,300 after five years. New cars often drop 20% or more in the first year alone.
Actual depreciation depends on the make, mileage, condition and market, but a steady annual percentage is a reasonable planning estimate.
value = price × (1 − annual rate)^years
Often 15–20% a year, and 20%+ in the first year. A $30,000 car at 15%/year is worth about $13,300 after five years.
Each year the car keeps the same percentage of the prior year’s value, so the dollar loss shrinks over time.
Trucks and some SUVs and brands known for reliability depreciate more slowly. Luxury cars and EVs often drop faster.
Engine size in cc & L.
Open →Static compression ratio.
Open →ET & trap speed.
Open →Pressure vs temperature.
Open →HP → torque.
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