To know the performance of a garment factory, and a comparative study of the sewing line performance, we measure production line efficiency. So, like individual operator efficiency, measuring the efficiency of a production line is important for a factory. Daily line efficiency shows line performance

1. Calculation of Line Efficiency
in Garment Industry
By Fouzia Mirza
By Fouzia Mirza

2. How to Calculate Efficiency of a Production
Line?
• To know the performance of a garment factory, and a
comparative study of the sewing line performance, we measure
production line efficiency.
• So, like individual operator efficiency, measuring the efficiency of
a production line is important for a factory.
• Daily line efficiency shows line performance
By Fouzia Mirza

3. Production Line Efficiency Calculation -
Information required
• 1. Number of operators – how many operators worked in the line in a
day
• 2. Working hours (Regular and overtime hours) – how many hours
each of the operators worked or how many hours the line run in a day
• 3. Production in pieces – How many pieces are produced or total line
output at the end of the day
• 4. Garment SAM – What is the exact standard minute of the style
(garment)
By Fouzia Mirza

4. • Once you have above data you have to calculate following using above
information -
• a. Total minutes produced by the line: To get total produced minutes,
multiply production pieces by garment SAM
• b. Total minutes attended by all operators in the line: Multiply the
number of operators by daily working hours and convert total hours
into total minutes (multiplying by 60).
• Now, calculate line efficiency using the following formula:
By Fouzia Mirza

5. • Line efficiency (in percentage) =
• = (Total minutes produced by the line *100)
(Total minutes attended by all operators)
= F x 100
E
By Fouzia Mirza

6. Example
1. 48 operations worked in a line for 8 hours. They produced 160 garments and SAM
of the garment is 44.25 minutes.
Soln.: Here,
Total minutes produced (F)= Production x SAM
= (160 x 44.25) = 7080 minutes ..(F)
Total minutes attended (E) = Man Power x Working hrs x60
= (48 operator x 8 hours x 60) = 23040 minutes ….(E)
Efficiency% = Eq.(F) x100/Eq.(E)
= (7080 x100)/23040 % = 30.729%
By Fouzia Mirza

7. Assignment Problems
By Fouzia Mirza

8. By Fouzia Mirza

9. By Fouzia Mirza