Depreciation Calculator
Calculate asset depreciation using multiple methods including Straight-Line, DDB, and SYD
Equal depreciation expense each year. Most commonly used method.
Asset Details
Estimated value at end of useful life
Depreciation Schedule
Enter asset details and click Calculate
Depreciation schedule will appear here
Depreciation Methods Explained
Straight-Line Depreciation
Formula: (Cost - Salvage Value) / Useful Life
The simplest and most commonly used method. Allocates an equal amount of depreciation expense each year. Best for assets that lose value steadily over time.
Double Declining Balance (DDB)
Formula: 2 × Straight-Line Rate × Book Value
An accelerated method that recognizes more depreciation in early years. Common for assets that lose value quickly (vehicles, technology). Switches to straight-line when beneficial.
Sum of Years Digits (SYD)
Formula: (Remaining Life / Sum of Years) × Depreciable Base
Another accelerated method. Uses a fraction that decreases each year. Provides more moderate acceleration than DDB. Good for assets with predictable declining utility.
Units of Production
Formula: (Units Produced / Total Units) × Depreciable Base
Based on actual usage rather than time. Best for manufacturing equipment, vehicles, or any asset where wear is related to production or usage.