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Life Span of Machine Formula

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Life Span (in Hours) refers to the usage period or total life of a machine. Check FAQs
Ls=0.9⋅CbvDh
Ls - Life Span?Cbv - Book Value?Dh - Hourly Depreciation?

Life Span of Machine Example

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With units
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Here is how the Life Span of Machine equation looks like with Values.

Here is how the Life Span of Machine equation looks like with Units.

Here is how the Life Span of Machine equation looks like.

179.9105Edit=0.9⋅4000.01Edit20.01Edit
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HomeIcon Home » Category Engineering » Category Civil » Category Construction Practice, Planning and Management » fx Life Span of Machine

Life Span of Machine Solution

Follow our step by step solution on how to calculate Life Span of Machine?

FIRST Step Consider the formula
Ls=0.9⋅CbvDh
Next Step Substitute values of Variables
∴ Ls=0.9⋅4000.0120.01
Next Step Prepare to Evaluate
∴ Ls=0.9⋅4000.0120.01
Next Step Evaluate
∴Ls=647677.781109445s
Next Step Convert to Output's Unit
∴Ls=179.910494752624h
LAST Step Rounding Answer
∴Ls=179.9105h

Life Span of Machine Formula Elements

Variables
Life Span
Life Span (in Hours) refers to the usage period or total life of a machine.
Symbol: Ls
Measurement: TimeUnit: h
Note: Value should be greater than 0.
Formulas to find Life SpanOpen Variable
Book Value
Book Value refers to the value of machine which includes cost of equipment, taxes, insurance and carriage charge.
Symbol: Cbv
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Formulas to find Book ValueOpen Variable
Hourly Depreciation
Hourly Depreciation is the depreciation value of new machines chargeable to the work on an hourly basis.
Symbol: Dh
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Formulas to find Hourly DepreciationOpen Variable

Other formulas in Management of Construction Equipment category

​Go Hourly Depreciation
Dh=0.9⋅CbvLs
​Go Book Value for New Machine
Cbv=Dh⋅Ls0.9
​Go Average Investment when Salvage value is 0
Ia=(1+n2⋅n)⋅PCapital
​Go Capital Cost when Salvage Value is 0
PCapital=2⋅n⋅Ia1+n

How to Evaluate Life Span of Machine?

Life Span of Machine evaluator uses Life Span = 0.9*Book Value/Hourly Depreciation to evaluate the Life Span, The Life Span of Machine formula is defined as the period where the machine or the equipment can be used, or it is serviceable or otherwise the period till which the machine fulfils its purpose. Life Span is denoted by Ls symbol.

How to evaluate Life Span of Machine using this online evaluator? To use this online evaluator for Life Span of Machine, enter Book Value (Cbv) & Hourly Depreciation (Dh) and hit the calculate button.

FAQs on Life Span of Machine

What is the formula to find Life Span of Machine?
The formula of Life Span of Machine is expressed as Life Span = 0.9*Book Value/Hourly Depreciation. Here is an example- 0.05 = 0.9*4000.01/20.01.
How to calculate Life Span of Machine?
With Book Value (Cbv) & Hourly Depreciation (Dh) we can find Life Span of Machine using the formula - Life Span = 0.9*Book Value/Hourly Depreciation.
Can the Life Span of Machine be negative?
No, the Life Span of Machine, measured in Time cannot be negative.
Which unit is used to measure Life Span of Machine?
Life Span of Machine is usually measured using the Hour[h] for Time. Second[h], Millisecond[h], Microsecond[h] are the few other units in which Life Span of Machine can be measured.
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