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Straight-Line Depreciation Calculator

Allocate an asset's depreciable amount evenly over its useful life.

Runs locally

Inputs and results stay in this browser. Currency symbols are illustrative; use any consistent currency.

Annual depreciation$9,000.00
Accumulated depreciation$18,000.00
Closing book value$32,000.00

Understand Straight-line depreciation

One idea, three depths

Choose how deeply to explain Straight-line depreciation

Straight-line depreciation: Allocate an asset's depreciable amount evenly over its useful life.

Age 5Explain it to a 5-year-oldStart with a picture

Imagine using Straight-line depreciation to answer this question: allocate an asset's depreciable amount evenly over its useful life? Enter Asset cost, Residual value, Useful life, and 1 other input; the calculator shows Annual depreciation. For example: A $50,000 asset with $5,000 residual value and five-year life depreciates by $9,000 annually. The answer tells you Annual depreciation.

Age 15Explain it to a 15-year-oldConnect it to the formula

Straight-line depreciation recognises an equal expense in each full period when consumption is expected to be even. The rule is Annual depreciation = (Asset cost − residual value) ÷ useful life. Its input values are Asset cost, Residual value, Useful life (years), Years depreciated (years), and the main result is Annual depreciation. For example: A $50,000 asset with $5,000 residual value and five-year life depreciates by $9,000 annually.

CollegeExplain it at college levelState the model precisely

This calculator evaluates one accounting relationship within a consistent entity, currency, reporting period and recognition policy. The implemented relation is Annual depreciation = (Asset cost − residual value) ÷ useful life, evaluated from Asset cost, Residual value, Useful life (years), Years depreciated (years) to produce Annual depreciation. Straight-line depreciation recognises an equal expense in each full period when consumption is expected to be even. Recognition, measurement, tax, consolidation, foreign-currency and disclosure rules may require adjustments under the accounting framework that applies to the entity.

What this accounting tool does

Allocate an asset's depreciable amount evenly over its useful life.

Why the relationship works

Straight-line depreciation recognises an equal expense in each full period when consumption is expected to be even.

The accounting formula

Annual depreciation = (Asset cost − residual value) ÷ useful life

Inputs and period consistency

This model uses Asset cost, Residual value, Useful life, Years depreciated. Use the same reporting period, currency, entity boundary and accounting policy for every input.

What the result means

The primary output is Annual depreciation; supporting outputs include Accumulated depreciation, Closing book value. Trace each amount back to the relevant ledger or statement line before relying on it.

Worked accounting example

A $50,000 asset with $5,000 residual value and five-year life depreciates by $9,000 annually.

Limits of this compact model

The calculator teaches one relationship. Recognition, measurement, tax, consolidation, foreign-currency and disclosure rules may require additional adjustments under the framework that applies to the entity.

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Supporting sourcesAcademic referencesPrimary standards, textbooks and complete citations

Standards, reading and academic references

Use the calculator as the worked interaction, then consult the primary standards and academic textbooks listed below. MW SysArc links to the original sources; the explanation on this page is original and does not reproduce them.

Principles of Accounting, Volume 1: Financial Accounting

Read the free OpenStax financial accounting textbook
Cite this book
APA 7
Franklin, M., Graybeal, P., & Cooper, D. (2019). Principles of accounting, volume 1: Financial accounting. OpenStax. https://openstax.org/books/principles-financial-accounting/pages/1-why-it-matters
MLA 9
Franklin, Mitchell, et al. Principles of Accounting, Volume 1: Financial Accounting. OpenStax, 2019, https://openstax.org/books/principles-financial-accounting/pages/1-why-it-matters.
Chicago author-date
Franklin, Mitchell, Patty Graybeal, and Dixon Cooper. 2019. Principles of Accounting, Volume 1: Financial Accounting. Houston, TX: OpenStax. https://openstax.org/books/principles-financial-accounting/pages/1-why-it-matters.

OpenStax entries are free to read online. Follow the licence shown on each linked source before redistributing or adapting its content.

Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS

These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.

Organizational author: MW SysArc. Published:. Canonical page:https://accounting.mwsysarc.com/straight-line-depreciation.

APA 7

MW SysArc. (2026, July 21). Straight-Line Depreciation Calculator. MW SysArc Tools. https://accounting.mwsysarc.com/straight-line-depreciation

MLA 9

MW SysArc. “Straight-Line Depreciation Calculator.” MW SysArc Tools, 21 July 2026, https://accounting.mwsysarc.com/straight-line-depreciation. Accessed 26 Aug. 2026.

Chicago 17

MW SysArc. “Straight-Line Depreciation Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed August 26, 2026. https://accounting.mwsysarc.com/straight-line-depreciation.

Harvard

MW SysArc (2026) ‘Straight-Line Depreciation Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://accounting.mwsysarc.com/straight-line-depreciation (Accessed: 26 August 2026).

BibTeX and RIS records

BibTeX

@misc{mwsysarc_straight_line_depreciation_2026,
  author = {{MW SysArc}},
  title = {Straight-Line Depreciation Calculator},
  howpublished = {MW SysArc Tools},
  year = {2026},
  url = {https://accounting.mwsysarc.com/straight-line-depreciation},
  note = {Published July 21, 2026; accessed August 26, 2026}
}

RIS

TY  - ELEC
AU  - MW SysArc
TI  - Straight-Line Depreciation Calculator
T2  - MW SysArc Tools
PY  - 2026
DA  - 2026-07-21
Y2  - 2026-08-26
UR  - https://accounting.mwsysarc.com/straight-line-depreciation
N1  - Published July 21, 2026
ER  -

Clear answers

Frequently asked questions

What does the Straight-line depreciation do?

Allocate an asset's depreciable amount evenly over its useful life.

How does the Straight-line depreciation work?

The calculator applies Annual depreciation = (Asset cost − residual value) ÷ useful life. Straight-line depreciation recognises an equal expense in each full period when consumption is expected to be even.

What can I learn from the Straight-line depreciation?

You will connect Asset cost, Residual value, Useful life, Years depreciated to Annual depreciation, then see how the relationship belongs in the accounting process.

Does MW SysArc receive or store what I enter?

No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.

How should I use the result?

Use the result as an educational or reconciliation reference. Confirm the reporting period, accounting policy and source records before relying on it.

Last reviewed . Calculations tested .

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