Slack of Event in CPM Calculator

✖Total float is the period by which an activity can shift its timing without affecting the relevant schedule completion date.ⓘ Total Float [TF₀]			+10% -10%
✖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.ⓘ Free Float [FF₀]			+10% -10%

✖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.ⓘ Slack of Event in CPM [S]

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Formula

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Slack of Event in CPM

Formula

`"S" = "TF"_{"0"}-"FF"_{"0"}`

Example

`"6d"="24d"-"18d"`

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Slack of Event in CPM Solution

STEP 0: Pre-Calculation Summary

Formula Used

Slack of an Event = Total Float-Free Float
S = TF₀-FF₀
This formula uses 3 Variables

Variables Used

Slack of an Event - (Measured in Second) - 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.
Total Float - (Measured in Second) - Total float is the period by which an activity can shift its timing without affecting the relevant schedule completion date.
Free Float - (Measured in Second) - 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.

STEP 1: Convert Input(s) to Base Unit

Total Float: 24 Day --> 2073600 Second (Check conversion here)
Free Float: 18 Day --> 1555200 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S = TF₀-FF₀ --> 2073600-1555200

Evaluating ... ...

S = 518400

STEP 3: Convert Result to Output's Unit

518400 Second -->6 Day (Check conversion here)

FINAL ANSWER

6 Day <-- Slack of an Event

(Calculation completed in 00.004 seconds)

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Credits

Created by Rachana B V

The National Institute of Engineering (NIE), Mysuru

Rachana B V has created this Calculator and 25+ more calculators!

Verified by Ayush Singh

Gautam Buddha University (GBU), Greater Noida

Ayush Singh has verified this Calculator and 100+ more calculators!

< 10+ Critical Path Method Calculators

Earliest Finish Time

Go Earliest Finish Time = Latest Finish Time-Total Float

Total Float in CPM

Go Total Float = Latest Finish Time-Earliest Finish Time

Latest Finish Time

Go Latest Finish Time = Total Float+Earliest Finish Time

Slack of Event given Independent Float

Go Slack of an Event = Free Float-Independent Float

Free Float given Indenpendent Float

Go Free Float = Independent Float+Slack of an Event

Independent Float used in CPM

Go Independent Float = Free Float-Slack of an Event

Total Float given Free Float

Go Total Float = Free Float+Slack of an Event

Free Float used in CPM

Go Free Float = Total Float-Slack of an Event

Slack of Event in CPM

Go Slack of an Event = Total Float-Free Float

Interfering Float

Go Interfering Float = Total Float-Free Float

Slack of Event in CPM Formula

Slack of an Event = Total Float-Free Float
S = TF₀-FF₀

What is Free Float?

Free Float, per definition, is the amount of time that the activity can be delayed before any successors will be delayed. Early Start/Finish times are used to calculate the Free Float values.

What is Slack?

The Slack time for an activity is the time between its earliest and latest start time, or between its earliest and latest finish time. Slack is the amount of time that an activity can be delayed past its earliest start or earliest finish without delaying the project.

How to Calculate Slack of Event in CPM?

Slack of Event in CPM calculator uses Slack of an Event = Total Float-Free Float to calculate the Slack of an Event, The Slack of Event in CPM formula is defined as the time an event/task can be delayed without delaying the project's completion. Slack of an Event is denoted by S symbol.

How to calculate Slack of Event in CPM using this online calculator? To use this online calculator for Slack of Event in CPM, enter Total Float (TF₀) & Free Float (FF₀) and hit the calculate button. Here is how the Slack of Event in CPM calculation can be explained with given input values -> 6.9E-5 = 2073600-1555200.

FAQ

What is Slack of Event in CPM?

The Slack of Event in CPM formula is defined as the time an event/task can be delayed without delaying the project's completion and is represented as S = TF₀-FF₀ or Slack of an Event = Total Float-Free Float. Total float is the period by which an activity can shift its timing without affecting the relevant schedule completion date & 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.

How to calculate Slack of Event in CPM?

The Slack of Event in CPM formula is defined as the time an event/task can be delayed without delaying the project's completion is calculated using Slack of an Event = Total Float-Free Float. To calculate Slack of Event in CPM, you need Total Float (TF₀) & Free Float (FF₀). With our tool, you need to enter the respective value for Total Float & Free Float and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Slack of an Event?

In this formula, Slack of an Event uses Total Float & Free Float. We can use 1 other way(s) to calculate the same, which is/are as follows -

Slack of an Event = Free Float-Independent Float

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