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How to Calculate Allowance of SMV in a Garments Industry

How to Calculate Allowance of SMV in a Garments Industry

An employee can’t work continuously within required time scheduling. In the garment industry, workers should do lots of work. For execution all of the work, a worker desires some time for private and physical refreshment. Therefore, a worker desires some extra time allowed for performing the work. This extra time added with basic time during SMV calculation is known as allowance calculation. Allowance Calculation method in a very important topic for a garments merchandiser. So, nowadays I’d prefer to discuss How to Calculate Allowance of SMV in the garments industry.

What is SMV?

SMV is defined as the time that is allowed to perform employment satisfactorily. ordinarily, it’s expressed in minute value. the total elaboration of SMV is standard Minute value. SMV term is generally used in the clothes manufacturing industry. This SMV is additionally called standard allocated Minute (SAM). For sleek and timely shipment an export order a merchant need to correct SMV set up in garments Manufacturing floor.

SMV – SMV (Standard Minute Value): the time that is allowed to perform the job satisfactorily. 

SMV = B.T + Allowances

 Basic Time: The basic time for the operation is found by regarding the concept of rating to correlate the observed to that of a standard place of work.

Calculated as follows:

Basic time = observed time * observed rating/100

               (BT = Observed time * Observed Rating          = A constant)



SL- 1 2 3 4
Rating 50 75 100 125
Observed time 1.2 0.8 0.6 0.5
Basic Time 1.2*50/100  0.8*75/100      0.6*100/100 0.5*125/100
Result 0.60 0.6 0.6 0.6

 How to Calculate Allowance

How to Calculate Allowance? 

 Types of allowances:  There are 3 types of allowance as below.

  1. Relaxation Allowances.
  2. Contingency allowances.
  3. Machine delay allowances:

1.Relaxation Allowances:

Do you have any Idea How to Calculate Allowance for Relaxation?

  • Personal needs
  • This allowance provides for the requirement to leave the workplace to attend to personal needs such as washing, going to the lavatory or fetching a drink.
  • Common figures are from 5 to 7% percent of the basic time.
  • Basic fatigue
  • This allowance, always a constant is given to take account of the energy expended while carrying out work and to alleviate the monotony.
  • A common figure is 4 percent of the basic time.
  1. Contingency allowances

    • A contingency allowance is a small allowance of time which may be included in a regular time to meet legitimate and familiar items of work or delays, the precise measurement of which is uneconomical because of their uncommon or irregular occurrence. 
  1. Machine delay allowances:

These are used to the total basic times for those components which are concerned with the operation of machinery.

Common used as follows:

  • Single needle lockstitch9%
  • Twin needle lockstitch14%
  • Three thread overlook – 7%
  • Four thread overlook- 9%
  • Five thread overlook- 11%

Relaxation allowance (Calculation):

  1. Personal needs :(From 5 to 7% of the basic time)

Basic fatigue:

(4 % of the basic time)

  1. Contingency Allowances:

(less than 5% percent)

  1. Machine attention Allowances:
  • Single needle lockstitch – 9% – 12%
  • Double-needle lockstitch – 14% – 17%
  • Three thread overlock – 7%
  • Four thread overlock – 9%
  • Five thread overlock -11%

 SMV calculation:

Element description

Observed rating

Observed time Basic Time Freq.

Basic Time/Gmt

Get bundle and sort parts


0.32 0.304 1/30


Match pocket flap to facing


0.11 0.116 1/1


Sew round flap


0.48 0.480 1/1


Trim threads and turn out flap


0.35 0.298 1/1


Topstitch flap


0.56 0.504 1/1


Close bundle and position aside


0.23 0.253 1/30




Total basic time/garment (brought forward) =  1.416

Add machine attention allowances  = 7%

= 7% Of (0.480 + 0.504) = 0.07 x 0.984 = 0.069      =0.069

Basic time + MAA  (1.416 + 0.069)                          =1.485

Add personal needs and relaxation allowances= 14%

14% of 1.485 = 0.14 x 1.485 = 0.208                       =0.028

Standard minute Value (SMV) = Basic time + all allowances =

                                                               1.485 + 0.208  = 1.693 (SMV)

  Operators Performance rating: Listed below are the 20levels of performance applied in the rating process. You will note that each description has a corresponding percentage figure. It is this figure that is used in leveling.

in the above discussing I try to clear answer about How to Calculate Allowance of SMV in Garment’s Factory. if you have any query about this Question please write in comment box. I will try to describe.

 Question 1:

 As a result of a time study activity, the following information is available

    (BSI. 100 rating used)

Elements                                          Rating                   Time(min)

Obtain and sort bundle                       90                       0.11

Position breast pocket                       75                       0.16

Sew to attach pocket                          105                      1.02

Cut threads and reposition               100                      0.05

Pickup and position pocket               80                      0.15

Sew to attach flap                              110                      0.88

Cut threads and aside gmt.                95                      0.09

Close bundle and write ticket            85                       0.17

Additional Information

An 8% allowance is to be used to all sewing elements to compensate for machine attention.

A 14% relaxation allowance is to be applied to all work.

The average bundle size is 10 garments

Determine the standard minute Value (SMV) for one garment.

How many garments would you require to be produced in a 465-minute working day? (Briefly explain any assumptions you have made.)

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