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## Credits

NSS College of Engineering (NSSCE), Palakkad
Chandana P Dev has created this Calculator and 400+ more calculators!
Coorg Institute of Technology (CIT), Coorg
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## Optimistic Time when Expected Time is Known Solution

STEP 0: Pre-Calculation Summary
Formula Used
optimistic_time = (6*Mean time)-(4*Most likely time)-Pessimistic time
t0 = (6*te)-(4*tm)-tp
This formula uses 3 Variables
Variables Used
Mean time - Mean time, also called as expected time is the time needed to complete an activity. (Measured in Day)
Most likely time - Most likely time is the normal time activity would take. (Measured in Day)
Pessimistic time - Pessimistic time is the longest time that activity could take if everything is wrong. (Measured in Day)
STEP 1: Convert Input(s) to Base Unit
Mean time: 20 Day --> 1728000 Second (Check conversion here)
Most likely time: 180 Day --> 15552000 Second (Check conversion here)
Pessimistic time: 365 Day --> 31536000 Second (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
t0 = (6*te)-(4*tm)-tp --> (6*1728000)-(4*15552000)-31536000
Evaluating ... ...
t0 = -83376000
STEP 3: Convert Result to Output's Unit
-83376000 Second -->-965 Day (Check conversion here)
-965 Day <-- Optimistic time
(Calculation completed in 00.031 seconds)

## < 11 Other formulas that you can solve using the same Inputs

PERT expected time
pert_expected_time = (Optimistic time+(4*Most likely time)+Pessimistic time)/6 Go
Mean or Expected Time
mean_time = (Optimistic time+(4*Most likely time)+Pessimistic time)/6 Go
Most Likely Time when Expected Time is Known
most_likely_time = (6*Mean time-Optimistic time-Pessimistic time)/4 Go
Standard Deviation when Probability Factor is Given
standard_deviation = (Scheduled time-Mean time)/Probability factor Go
Scheduled Time when Probability Factor is Known
scheduled_time = (Standard Deviation*Probability factor)+Mean time Go
Probability Factor
probability_factor = (Scheduled time-Mean time)/Standard Deviation Go
Pessimistic Time when Expected Time is Known
pessimistic_time = 6*Mean time-Optimistic time-4*Most likely time Go
Optimistic Time when Standard Deviation is Known
optimistic_time = -(6*Standard Deviation-Pessimistic time) Go
Standard Deviation of an Activity
standard_deviation = (Pessimistic time-Optimistic time)/6 Go
Standard Deviation
standard_deviation = (Pessimistic time-Optimistic time)/6 Go
Variance
variance = ((Pessimistic time-Optimistic time)/6)^2 Go

## < 1 Other formulas that calculate the same Output

Optimistic Time when Standard Deviation is Known
optimistic_time = -(6*Standard Deviation-Pessimistic time) Go

### Optimistic Time when Expected Time is Known Formula

optimistic_time = (6*Mean time)-(4*Most likely time)-Pessimistic time
t0 = (6*te)-(4*tm)-tp

## What is PERT ?

PERT stands for project evaluation review technique. It involves uncertainty in the project completion. It is a numerical technique used in projects where the time cannot be accurately estimated.

## How to Calculate Optimistic Time when Expected Time is Known?

Optimistic Time when Expected Time is Known calculator uses optimistic_time = (6*Mean time)-(4*Most likely time)-Pessimistic time to calculate the Optimistic time, The Optimistic Time when Expected Time is Known is the minimum possible time in which an activity can be completed under ideal conditions. Optimistic time and is denoted by t0 symbol.

How to calculate Optimistic Time when Expected Time is Known using this online calculator? To use this online calculator for Optimistic Time when Expected Time is Known, enter Mean time (te), Most likely time (tm) and Pessimistic time (tp) and hit the calculate button. Here is how the Optimistic Time when Expected Time is Known calculation can be explained with given input values -> -965 = (6*1728000)-(4*15552000)-31536000.

### FAQ

What is Optimistic Time when Expected Time is Known?
The Optimistic Time when Expected Time is Known is the minimum possible time in which an activity can be completed under ideal conditions and is represented as t0 = (6*te)-(4*tm)-tp or optimistic_time = (6*Mean time)-(4*Most likely time)-Pessimistic time. Mean time, also called as expected time is the time needed to complete an activity, Most likely time is the normal time activity would take and Pessimistic time is the longest time that activity could take if everything is wrong.
How to calculate Optimistic Time when Expected Time is Known?
The Optimistic Time when Expected Time is Known is the minimum possible time in which an activity can be completed under ideal conditions is calculated using optimistic_time = (6*Mean time)-(4*Most likely time)-Pessimistic time. To calculate Optimistic Time when Expected Time is Known, you need Mean time (te), Most likely time (tm) and Pessimistic time (tp). With our tool, you need to enter the respective value for Mean time, Most likely time and Pessimistic time 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 Optimistic time?
In this formula, Optimistic time uses Mean time, Most likely time and Pessimistic time. We can use 1 other way(s) to calculate the same, which is/are as follows -
• optimistic_time = -(6*Standard Deviation-Pessimistic time)
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