Calculate asset depreciation using straight-line, double-declining, or sum-of-years methods
Spreads the cost of a fixed asset across its useful life under straight-line, declining-balance, or sum-of-years-digits methods. The method chosen changes the timing of the expense, never the total amount recovered.
Straight line: (Cost − Salvage) / Life Double declining: Book value × (2 / Life) Sum of years digits: (Cost − Salvage) × Remaining life / (Life × (Life + 1) / 2)
Costpurchase price plus costs to put the asset into serviceSalvageestimated resale value at the end of useful lifeLifeuseful life in yearsBook valuecost less accumulated depreciation to dateYes. Depreciation Calculator costs nothing, needs no account, and runs right in your browser. There is no paywall, no watermark on the results, and no limit on how many times you can run the numbers.
Depreciation Calculator uses the standard formula for this kind of calculation, so the output is only as good as the figures you type in. Rates, fees, and rules in finance shift over time, and we review the underlying assumptions on a regular schedule; check the "Last reviewed" date above for the most recent pass. Spotted something off? There's a feedback button in the bottom-right corner.
Treat the output of Depreciation Calculator as a starting point, not final advice. Tax filings, loan approvals, insurance claims, property deals, and legal matters all depend on details a calculator cannot see: your full financial picture, local rules, and the specifics of your paperwork. Run the numbers here, then confirm anything consequential with an accountant, lawyer, or licensed advisor.