Do you need customer support or technical assistance? Click here to submit a support ticket...
  • Page:
  • 1

TOPIC: Question Free Float - Formula Redefined

Free Float - Formula Redefined 3 years 8 months ago #4431

  • Subhajit Palit
  • Subhajit Palit's Avatar Topic Author
  • Offline
  • Fresh Boarder
  • Fresh Boarder
  • Posts: 8
  • Thank you received: 0


I think I can rephrase it like below:-

Free Float = ES of Following - ES of Present - DUR of Present

Free Float = ES of Following - EF of Present
as [ ES of Present + DUR of Present ] = EF of Present

What do you think ?

Free Float - Formula Redefined 3 years 8 months ago #4432

  • Ahmed Amin
  • Ahmed Amin's Avatar
  • Offline
  • Gold Boarder
  • Gold Boarder
  • Posts: 300
  • Karma: 8
  • Thank you received: 72
Hi Subhajit,

Free float is the amount of time that an activity can be delayed without delaying the Early Start of its successor activity.

and Yes if we do some formula substitutions, your formula will prove valid.

however i think the original formula which is :

Free Float = ES of Following - EF of Present

is easier to memorize as it maps to the definition perfectly.
Ahmed Amin Abdullah, PMP
Community Moderator

Free Float - Formula Redefined 3 years 8 months ago #4433

  • Michael DeCicco
  • Michael DeCicco's Avatar
  • Offline
  • Expert Boarder
  • Expert Boarder
  • Posts: 130
  • Karma: 4
  • Thank you received: 35
Subhajit, in general I highly recommend memorizing the formulas as they are in the PMBOK. The entire study regimen for the exam is based on a logical progression of a methodology. This includes the consistency of the formulas as you find them in the various study guides.
Yours Respectfully
Michael DeCicco, PMP
Community Moderator
Last Edit: by Michael DeCicco.
  • Page:
  • 1
Moderators: Yolanda MabutasTimothy EnallsScott GillardMary Kathrine PaduaERIC BARTLETTKevin NasonSteven Mudrinich, PMPMark Wuenscher, PMPJohn WolvertonTracy Shagnea, PMPJada GarrettMark LacattivaPatrick Floris PhD PMPTy Weston, PMPGenevieve Pluviose, PMP

Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®

The PMP Exam is Changing in 2018
Simona and Cornelius
Free Interview - Listen Now

This interview with Simona Fallavollita (LinkedIn Profile) was recorded at the magnificient Project Management Institute (PMI)® Global Conference 2017 in Chicago, Illinois. We discuss the how, what, why and when of the changes that are coming to the PMP exam.

Thank you!
Cornelius Fichtner, PMP, CSM