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Mechanical Engineering

Duration of Activity in PERT and CPM Calculator

Mechanical Engineering

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Duration of Activity in PERT and CPM

Equation and meaning

\[LFT = LST + Duration_of_activity\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

Duration_of_activity — Duration Of Activity
Enter this value unless it is the selected unknown.
LFT — Lft
Enter this value unless it is the selected unknown.
LST — Lst
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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