How do you calculate capital equipment depreciation allocated to production?

Multiply the number of depreciable machines by the annual depreciation per machine, multiply by the production allocation share, then add disposal and removal cost. With 6 machines at $42,000/yr each, 85% allocation, and $15,000 disposal, the total is $229,200.

What is the difference between fixed and variable depreciation here?

The variable portion ($214,200 in the example) scales with machine count and allocation share, while the disposal and removal cost is treated as a fixed adder ($15,000) that you incur regardless of utilization.

What is depreciation cost per unit in this calculator?

It is total allocated depreciation divided by machine count. In the worked example, $229,200 across 6 machines is $38,200 per machine, which you can then convert to a per-part charge using each machine's annual output.

Should disposal cost be included in depreciation?

Economically, yes. Removal, decommissioning, and disposal are real end-of-life costs of owning the asset, so this calculator adds them as a fixed adder to give you a fully loaded ownership figure rather than book depreciation alone.

What is a good production allocation share?

It should reflect the fraction of machine availability dedicated to billable production versus R&D, maintenance trials, or idle standby. Many job shops run 80-90%; the default 85% is a realistic figure for a well-utilized cell.

Is this book depreciation or tax depreciation?

It is a cost-accounting figure for internal rate-setting, using a straight-line annual charge. Tax depreciation (MACRS or your local equivalent) follows statutory schedules and will differ year to year, so do not file this number with your return.

Manufacturing Project Portfolio & Capex calculator

Capital Equipment Depreciation Calculator

Capital equipment depreciation is the systematic write-down of machine value over its useful life, allocated to the production cost it actually supports. Plant controllers, cost accountants, and operations managers use it to load machine-hour rates, justify capex, and price work so that every part carries its fair share of the asset base. On a multi-machine cell it matters because depreciation is often the single largest fixed cost after labor, and mis-allocating it quietly distorts every quote you send out. This calculator splits the annual charge across your machines, applies a production allocation share, and adds end-of-life disposal cost so you see the true sunk burden.

What this calculator does

Estimate the depreciation expense your capital equipment fleet loads onto a manufacturing program over a year.
A plant controller allocating machine depreciation to a product line to confirm the capex burden is recovered in the standard cost.
Computes total production-allocated capital equipment depreciation by multiplying machine count by the annual per-machine charge times the allocation share, then adding disposal and removal cost.

Formula used

Allocated depreciation = machines x annual charge per machine x allocation% + disposal adder
Depreciation per machine = total allocated depreciation / machine count

Inputs explained

Depreciable asset count: Number of capital machines or lines being depreciated
Annual depreciation per machine: Straight-line yearly depreciation charge per asset
Production allocation share: Percent of depreciation charged to this product or job
Asset disposal and removal cost: One-time end-of-life removal or write-off adder

How to use the result

Use it when building machine-hour rates, evaluating a capex proposal, or reconciling fixed overhead against the asset register at fiscal year-end.
It uses a straight-line annual charge per machine and a single allocation percentage, so it will not reflect accelerated tax depreciation schedules, mid-year asset additions, or assets with materially different lives.

Common questions

How do you calculate capital equipment depreciation allocated to production? Multiply the number of depreciable machines by the annual depreciation per machine, multiply by the production allocation share, then add disposal and removal cost. With 6 machines at $42,000/yr each, 85% allocation, and $15,000 disposal, the total is $229,200.
What is the difference between fixed and variable depreciation here? The variable portion ($214,200 in the example) scales with machine count and allocation share, while the disposal and removal cost is treated as a fixed adder ($15,000) that you incur regardless of utilization.
What is depreciation cost per unit in this calculator? It is total allocated depreciation divided by machine count. In the worked example, $229,200 across 6 machines is $38,200 per machine, which you can then convert to a per-part charge using each machine's annual output.
Should disposal cost be included in depreciation? Economically, yes. Removal, decommissioning, and disposal are real end-of-life costs of owning the asset, so this calculator adds them as a fixed adder to give you a fully loaded ownership figure rather than book depreciation alone.
What is a good production allocation share? It should reflect the fraction of machine availability dedicated to billable production versus R&D, maintenance trials, or idle standby. Many job shops run 80-90%; the default 85% is a realistic figure for a well-utilized cell.

Last reviewed 2026-05-12.