Financial Tool

Activity Depreciation Calculator

Calculate depreciation based on actual usage or production rather than time.

Σ The Formula

Depreciation = ((Cost - Salvage) / Total Activity) * Period Activity

Real World Examples

Delivery Van
A van costs $30k, salvage $5k, expected life 100k miles. In year 1, it drives 15k miles. Depreciation = (($30k-$5k)/100k) * 15k = $3,750.
Factory Machine
Machine costs $100k, salvage $10k, life 1 million units. Monthly production: 50k. Depreciation = $4,500.

# About This Calculator

Activity-based depreciation (also known as the Units-of-Production method) calculates an asset's loss in value based on how much it is actually used, rather than how much time has passed. This is ideal for equipment like vehicles (measured in miles) or machinery (measured in units produced).

This method matches the expense more accurately with the revenue the asset helps generate. If a machine is used heavily in Year 1 and sits idle in Year 2, the activity method will assign higher depreciation to Year 1, reflecting the actual "wear and tear."

To use this method, you need the asset's total purchase cost, its estimated salvage value (amount you expect to sell it for at the end of its life), and the total estimated capacity of the asset over its entire useful life.

Our calculator provides a clear breakdown of the depreciable base and the per-unit rate, helping business owners and accountants perform more precise financial reporting.

How To Use

  1. Enter the asset's original Cost.
  2. Enter the estimated Salvage Value.
  3. Enter the Total Lifetime Activity (e.g., total miles or total units).
  4. Enter the Current Period Activity to see the depreciation for that specific period.

Frequently Asked Questions

When should I use activity depreciation instead of straight-line?+

Use activity depreciation when an asset's value decreases primarily due to usage rather than obsolescence or the passage of time. Examples include fleet vehicles, mining equipment, and high-output manufacturing tools.

Can I switch depreciation methods mid-way?+

Generally, yes, but accounting standards (like GAAP) usually require a valid justification for the change and may require you to apply the new method prospectively.

What is the 'Depreciable Base'?+

It is the total amount of value that can be depreciated over the asset's life (Cost minus Salvage Value).

Is Activity Depreciation Calculator free to use?+

Yes, Activity Depreciation Calculator on Matheric is completely free to use. We believe in accessible education and utility for everyone.

How accurate is Activity Depreciation Calculator?+

We use standard mathematical formulas and high-precision computing algorithms to ensure results for Activity Depreciation Calculator are accurate for academic and professional use.

Can I use Activity Depreciation Calculator on my phone?+

Yes! Activity Depreciation Calculator is fully responsive and optimized for all devices, including smartphones, tablets, and desktops.

About

Activity-based depreciation (also known as the Units-of-Production method) calculates an asset's loss in value based on how much it is actually used, rather than how much time has passed. This is ideal for equipment like vehicles (measured in miles) or machinery (measured in units produced).

This method matches the expense more accurately with the revenue the asset helps generate. If a machine is used heavily in Year 1 and sits idle in Year 2, the activity method will assign higher depreciation to Year 1, reflecting the actual "wear and tear."

To use this method, you need the asset's total purchase cost, its estimated salvage value (amount you expect to sell it for at the end of its life), and the total estimated capacity of the asset over its entire useful life.

Our calculator provides a clear breakdown of the depreciable base and the per-unit rate, helping business owners and accountants perform more precise financial reporting.

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