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Independent Float 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

IF 0 = EFT - LST - t activity

IF₀ - Independent Float?EFT - Early Finish Time?LST - Late Start Time?t_activity - Activity Time?

Independent Float Example

With values

With units

Only example

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

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

Here is how the Independent Float equation looks like.

3 = 46 - 23 - 20

3d = 46d - 23d - 20d

3 = 46 - 23 - 20

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Independent Float Solution

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

FIRST Step Consider the formula

IF 0 = EFT - LST - t activity

Next Step Substitute values of Variables

∴

IF 0 = 46d - 23d - 20d

Next Step Convert Units

∴

IF 0 = 4E+6s - 2E+6s - 1.7E+6s

Next Step Prepare to Evaluate

∴

IF 0 = 4E+6 - 2E+6 - 1.7E+6

Next Step Evaluate

∴

IF 0 = 259200s

LAST Step Convert to Output's Unit

∴

IF 0 = 3d

Independent Float 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 Float

Early Finish Time

Early Finish Time is the earliest point in time when the scheduled activity can complete.

Symbol: EFT

Measurement: TimeUnit: d

Note: Value should be greater than 0.

Formulas to find Early Finish Time

Late Start Time

Late Start Time is the latest point in time when the scheduled activity can begin so as not to delay the project completion date or any constraint.

Symbol: LST

Measurement: TimeUnit: d

Note: Value should be greater than 0.

Formulas to find Late Start Time

Activity Time

Activity time is the estimated task duration based on preceding logic and constraints.

Symbol: t_activity

Measurement: TimeUnit: d

Note: Value should be greater than 0.

Formulas to find Activity Time

Other formulas in Time Estimation category

Go Early Finish Time

EFT = EST + S

Go Expected Waiting Time for Customers in Queue

W q = \frac{λ a}{µ \cdot (µ - λ a)}

Go Expected Waiting Time for Customers in System

W s = \frac{1}{µ - λ a}

Go Free Float

FF 0 = EFT - EST - t activity

How to Evaluate Independent Float?

Independent Float evaluator uses Independent Float = Early Finish Time-Late Start Time-Activity Time to evaluate the Independent Float, Independent float is that portion of the total float within which an activity can be delayed for start without affecting the float of the preceding activities. Independent Float is denoted by IF₀ symbol.

How to evaluate Independent Float using this online evaluator? To use this online evaluator for Independent Float, enter Early Finish Time (EFT), Late Start Time (LST) & Activity Time (t_activity) and hit the calculate button.

FAQs on Independent Float

What is the formula to find Independent Float?

The formula of Independent Float is expressed as Independent Float = Early Finish Time-Late Start Time-Activity Time. Here is an example- 3.5E-5 = 3974400-1987200-1728000.

How to calculate Independent Float?

With Early Finish Time (EFT), Late Start Time (LST) & Activity Time (t_activity) we can find Independent Float using the formula - Independent Float = Early Finish Time-Late Start Time-Activity Time.

Can the Independent Float be negative?

Yes, the Independent Float, measured in Time can be negative.

Which unit is used to measure Independent Float?

Independent Float is usually measured using the Day[d] for Time. Second[d], Millisecond[d], Microsecond[d] are the few other units in which Independent Float can be measured.

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Independent Float Formula

Independent Float Example

Independent Float Solution

Independent Float Formula Elements

Other formulas in Time Estimation category

How to Evaluate Independent Float?

FAQs on Independent Float

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