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Independent Float used in CPM Formula

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Independent Float is that portion of the total float within which an activity can be delayed to start without affecting the float of the preceding activities. Check FAQs
IF0=FF0-S
IF0 - Independent Float?FF0 - Free Float?S - Slack of an Event?

Independent Float used in CPM Example

With values
With units
Only example

Here is how the Independent Float used in CPM equation looks like with Values.

Here is how the Independent Float used in CPM equation looks like with Units.

Here is how the Independent Float used in CPM equation looks like.

12Edit=18Edit-6Edit
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Independent Float used in CPM Solution

Follow our step by step solution on how to calculate Independent Float used in CPM?

FIRST Step Consider the formula
IF0=FF0-S
Next Step Substitute values of Variables
∴ IF0=18d-6d
Next Step Prepare to Evaluate
∴ IF0=18-6
Next Step Evaluate
∴IF0=1036800s
LAST Step Convert to Output's Unit
∴IF0=12d

Independent Float used in CPM Formula Elements

Variables
Independent Float
Independent Float is that portion of the total float within which an activity can be delayed to start without affecting the float of the preceding activities.
Symbol: IF0
Measurement: TimeUnit: d
Note: Value can be positive or negative.
Formulas to find Independent FloatOpen Variable
Free Float
Free Float is the period by which an activity can shift in its timing without affecting the early start of any succeeding activity or event.
Symbol: FF0
Measurement: TimeUnit: d
Note: Value should be greater than 0.
Formulas to find Free FloatOpen Variable
Slack of an Event
Slack of an Event in a network is the difference between the latest event time and the earliest event time at its terminal point or node.
Symbol: S
Measurement: TimeUnit: d
Note: Value should be greater than 0.
Formulas to find Slack of an EventOpen Variable

Other formulas in Critical Path Method category

​Go Total Float in CPM
TF0=LFT-EFT
​Go Free Float used in CPM
FF0=TF0-S
​Go Interfering Float
IF=TF0-FF0
​Go Slack of Event in CPM
S=TF0-FF0

How to Evaluate Independent Float used in CPM?

Independent Float used in CPM evaluator uses Independent Float = Free Float-Slack of an Event to evaluate the Independent Float, The Independent Float used in CPM formula is defined as the excess time available as the preceding activity ends as late as possible and the succeeding activity starts as early as possible. Here slack is tail event slack. Independent Float is denoted by IF0 symbol.

How to evaluate Independent Float used in CPM using this online evaluator? To use this online evaluator for Independent Float used in CPM, enter Free Float (FF0) & Slack of an Event (S) and hit the calculate button.

FAQs on Independent Float used in CPM

What is the formula to find Independent Float used in CPM?
The formula of Independent Float used in CPM is expressed as Independent Float = Free Float-Slack of an Event. Here is an example- 0.000139 = 1555200-518400.
How to calculate Independent Float used in CPM?
With Free Float (FF0) & Slack of an Event (S) we can find Independent Float used in CPM using the formula - Independent Float = Free Float-Slack of an Event.
Can the Independent Float used in CPM be negative?
Yes, the Independent Float used in CPM, measured in Time can be negative.
Which unit is used to measure Independent Float used in CPM?
Independent Float used in CPM is usually measured using the Day[d] for Time. Second[d], Millisecond[d], Microsecond[d] are the few other units in which Independent Float used in CPM can be measured.
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