Online Calculators

Straight Line Depreciation Calculator

Straight Line Depreciation
Placed in service:

Calculator Use

Use this calculator to calculate the simple straight line depreciation of assets. Create and print deprciation schedules.


Asset Cost
the original value of your asset or the depreciable cost; the necessary amount expended to get an asset ready for its intended use
Salvage Value
the value of the asset at the end of its useful life; also known as residual value or scrap value
Useful Life
the expected time that the asset will be productive for its expected purpose
Placed in Service
select the month and enter the year the asset started being used for its intended purpose
enter 1 or 4 digits; enter a four digit year to use your actual years OR enter a 1 to list years using digits 1 through the last year
Fiscal Year
The starting and ending months for your fiscal year, your tax year. For personal tax filing with the IRS, your likely fiscal year is Jan-Dec, a regular calendar year. Some companies may have fiscal years that run, for example, Sep-Aug. The US Government fiscal year is Oct-Sep.
choose Full-Month, Mid-Month, Mid-Year or Mid-Quarter Convention; if you don't know, keep it at the common Full-Month

Sample Full Depreciation Schedule

Cost: $11,000.00, Salvage: $1,000.00
Life: 5 years, Convention: Full-Month
First Year: 8 months

Depreciation Schedule
Book Value
Year Start
Book Value
Year End

Straight-Line Depreciation Formula

The straight line calculation, as the name suggests, is a straight line drop in asset value.  The depreciation of an asset is spread evenly across the life.

  • Depreciation in Any Period = ((Cost - Salvage) / Life)
  • Partial year depreciation, when the first year has M months is taken as:
    • First year depreciation = (M / 12) * ((Cost - Salvage) / Life)
    • Last year depreciation = ((12 - M) / 12) * ((Cost - Salvage) / Life)
    • And, a life, for example, of 7 years will be depreciated across 8 years.

Straight-Line Depreciation Example

Suppose an asset for a business cost $11,000, will have a life of 5 years and a salvage value of $1,000.

  • Depreciation in Any 12 month Period = (($11,000 - $1,000) / 5 years) = $10,000 / 5 years = $2,000/ year.

Microsoft® Excel® Functions Equivalent: SLN

The Excel equivalent function for Straight-Line Method is SLN(cost,salvage,life) will calculate the depreciation expense for any period.  For a more accelerated depreciation method see, for example, our Double Declining Balance Method Depreciation Calculator.

(Microsoft® and Excel® are registered trademarks of Microsoft Corporation)


Cite this content, page or calculator as:

Furey, Edward "Straight Line Depreciation Calculator" at https://www.calculatorsoup.com/calculators/financial/depreciation-straight-line.php from CalculatorSoup, https://www.calculatorsoup.com - Online Calculators

Last updated: August 19, 2023

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