Industrial Engineering Toolkit

IE Calc
Suite

Built by Almas Shahriar · IPE Student, BUET · Practical tools for real-world IE problems.

v1.0.0 3 TOOLS BUET IPE

⏱ Time Study Calculator

Enter observed times per element. Get Normal Time & Standard Time with PFD allowance.

Normal Time = Observed Time × (Rating Factor / 100)
Standard Time = Normal Time × (1 + Allowance / 100)

Rating Factor (%)

PFD Allowance (%)

No. of Observations

Work Elements

OUTPUT

Element	Obs. Times	Mean (s)	Normal Time (s)	Std Time (s)

⚖ Line Balancing Calculator

Enter task times and number of workstations. Get efficiency, idle time, and bottleneck identification.

Cycle Time = Production Time / Required Output | Min Stations = Σ Task Times / Cycle Time
Efficiency = (Σ Task Times) / (N × Cycle Time) × 100 | Balance Delay = 100 − Efficiency

Production Time (min/shift)

Required Output (units/shift)

No. of Workstations

Tasks / Operations

OUTPUT

Task	Time (min)	% of Cycle	Status

📦 ABC Analysis Classifier

Paste item data (one per line: Item, Annual Usage, Unit Cost). Auto-classifies by annual value.

Annual Value = Annual Usage × Unit Cost
Class A = Top items contributing ~70% of total value | B = Next ~20% | C = Remaining ~10%

Class A Threshold (%)

Class B Threshold (%)

C = remainder

Item Data (Item Name, Annual Usage, Unit Cost)

// Format: Name, Quantity, Unit Cost — one item per line

OUTPUT

Rank	Item	Annual Usage	Unit Cost	Annual Value	% of Total	Cumulative %	Class