Depreciation CalculatorZero Dependencies·Offline Ready

🏭 Asset Depreciation Calculator

📖 Depreciation Methods Explained

Straight-Line Method

Annual depreciation = (Cost - Salvage Value) / Useful Life. Same amount each year. Simplest method, suitable for assets that lose value evenly, like office furniture and buildings.

Double Declining Balance (DDB)

Accelerated depreciation: Annual depreciation = Beginning Book Value × (2 / Useful Life). More depreciation in early years, less later. Switches to straight-line in final two years. Ideal for technology that becomes obsolete quickly.

Sum-of-Years-Digits (SYD)

Annual depreciation = (Cost - Salvage Value) × (Remaining Life / Sum of Years). Sum of Years = n(n+1)/2. Depreciation decreases each year, but more gradually than DDB.

❓ FAQ

What is depreciation?

Depreciation is the systematic allocation of a fixed asset's cost over its useful life. It reflects the gradual loss of value as the asset is used over time.

How is straight-line depreciation calculated?

Annual depreciation = (Cost - Salvage Value) / Useful Life. The same amount is depreciated each year.

How is double declining balance calculated?

Annual depreciation = Beginning Book Value × (2 / Useful Life). More depreciation in early years, switches to straight-line in final two years.

How is sum-of-years-digits calculated?

Annual depreciation = (Cost - Salvage Value) × (Remaining Life / Sum of Years). Sum of Years = n(n+1)/2. Depreciation decreases gradually.

Is my data secure?

Completely secure. All calculations are done locally in your browser. No data is sent to any server.