How to use the Depreciation Calculator
Enter cost, expected salvage value, useful life, and years elapsed. This calculator uses straight-line depreciation. Enter values from the same sale, product, price, or accounting scenario so percentages and totals are compared on a consistent basis.
What this calculator does
Calculate straight-line annual depreciation and book value after a number of years. It is intended to make the calculation transparent and repeatable: you provide the known values, the calculator applies the relevant relationship, and the result is shown with the units or labels used by the tool.
When this tool is useful
Use the Depreciation Calculator when you need a quick, repeatable check and already have the inputs requested by the page. It is useful for comparing scenarios, checking hand calculations, planning a task, or understanding how changing one input affects the result.
How the calculation works
Straight-line depreciation is (cost − salvage value) ÷ useful life.
Practical example
For a practical check, enter a small set of values you can verify independently, then compare the calculator’s result with the relationship described above before using it for a larger depreciation problem.
Things to keep in mind
- Taxes, fees, discounts, shipping, overhead, and accounting treatment can change real-world profitability or pricing.
- Businesses and jurisdictions may use different definitions, rounding conventions, or reporting rules.
- Use the result as a planning check and confirm final figures against invoices, accounting records, or applicable rules.