Civil Engineering Construction Management

Total Float Meaning in Project Management

What is the difference between Total Float and Free Float?

Total Float is the amount of time that an activity can be delayed from its early start date without delaying the finish date of the project while Free Float is the amount of time that an activity can be delayed without delaying the early start date of any successor activity.

What is the formula for Total Float?

Total Float = LF – EF (or LS – ES)

where ES = Early Start, EF = Early Finish, LS = Late Start, and LF = Late Finish

What is the formula for Free Float?

Free Float = ES of next activity – EF

See Also
Critical Path Method in Project Management

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