yashswa Started The Discussion:
Hiii all,

What is Manpower Requirement Calculation ? Is really there is any technique to assess the manpower requirement. Specially in companies where the activity is required to perform on 24X7 basis and on all the 365 days in a year.

In such case, how to assess the requirement of number of people per shift to perform the activity on 24X7 basis and on all the 365 days considering their annual leaves, holidays etc.

Please, suggest the technique or formula or any other solution to this problem.

Thanks & Regards,

Posted 4th August 2007 From India, Mumbai

Hi I wld like to Know also about that, pls suggest the technique or formula or any other solution to this problem. Vijay
Posted 4th August 2007 From India
I think that no such ready made formula you can get. It is totally depends on the industry to industry, production nature, and time span of job completion etc.

If you want I can share you Manpower Requirement Format. That may be help to you.

Posted 5th August 2007 From India, Delhi
Hi All,
Staffing Need Assessment ( Man Power Planning) , is a process initiated by the HR Department with the Top Management. It is indeed a complex and a challenging process.

I ll try to run thru the basic details;

A staffing needs assessment determines the numbers and types of jobs needed to successfully achieve business goals .

Two factors are considered

 What KSA are required to achieve future goals ?
 What KSA are available internally ?

Answering the above results in Identifying the GAP, between the perceived context and the current context.

Next step we need to determine the Number of Resources required.

We can use both Qualitative / Quantitative tools to come up with the numbers.

Qualitative tools include using Brainstorming , Delhi technique at the core group level to arrive at consensus on the figures. Qualitative analysis always relied on past experiences and pure judgment.

Quantitative Analysis. We need to use quantitative tools to support the figures . Quantitative analysis relies on more scientific methods in arrive a the figures.

Ratios, Turnover Analysis, Trend forecasts etc are some tools available for Quantitative analyses.

Now that we have got the requirements in terms of Numbers. We need to divide the KSA in terms of Internally available / Externally Available.

Internally Available KSA can be mapped against Skill Inventory and Replacement Chart

Externally Available KSA We need to get ready by identifying the Labor Market , Conduct Wage and Salary Surveys, devising ways and means to attract talent from the identified labor market.

Hope the above gives a fundamental idea into the Staffing Assessment process.

Keep Learning

Posted 5th August 2007 From United Arab Emirates, Dubai
Hi as posted by senior members I too agree this depends upon a lot of analysis,, industry to industry...

Just a little example,, in our Company, the canteen contractor is paid for 200 - 20 = 180 plates daily, for the food served in the canteen, even though the no of plates on any day may be 120, 150, 180 , 200 ....this is calculated keeping in mind the 200 employees and per day an absenteesm of 10% approx, so for different things different points need to be considered, For. Eg, in companies providing 24*7 service,, they know which slot / shift needs how much no of employees to manage,and accordingly set rooster. , this is done through data collection and analysis...
Posted 5th August 2007 From India, Pune
A very simple and practical calculation is as under:

If it is 24X7, you need three persond per day. With stagered weekly holiday, add one reliever per six persons.

In case of leave and for work on National & Festival holidays, pay overtime wages.


S. Srikumar
Posted 5th August 2007
Hi Yashwa

I think what has been said as of now by other members on this topic must have been very useful to you.

However i just thought of adding my understanding on the subject.

If you are trying to estimate the no of Manpower required to carryout a given function/s in a PLANT then you can use the Time & Motion Study, a business efficiency technique combining the Time Study work of Frederick Winslow Taylor with the Motion Study work of Frank and Lillian Gilbreth.

It is a very scientific tool to do manpower planning and also for project estimations.

However you would require the help of a very strong Industrial Engineer to carry out the same.

If you can do this I am sure you will be considered as an eminent Business Partner, which all of us now in the HR fraternity is striving for.

All the best.

Abhisek Majumdar
Posted 5th August 2007 From India, Bangalore
Dear Mr Prasanth,
Thank a lot for your contribution .Its quite useful.May i request you to share skill inventory and replacement chart with us so that we can practice it in our organisation??

Posted 6th August 2007 From India, Gurgaon
Dear Mr. Prasanth,

First of all I thank you for your information. Secondly, I would like to request you that if you have some material on this topic posted, please, put the information requested here by Anjali on the site instead to mail everyone personally so that it will useful to all participating the discussion.
If there is any problem, you can mail the same to me at

Thanking you,

With Regards,
Posted 7th August 2007 From India, Mumbai
Hi All , Please visit for write up and download on Replacement Charts http://www.citehr.com/replacement-chart-sample-attached-vt41276.html Keep Learning ! Prasnath www.nnair.8m.com
Posted 8th August 2007 From United Arab Emirates, Dubai


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