Home / Blog
OpsCalculators Blog
Practical guides to the industrial and operations engineering behind our calculators: how the formulas work, how to read the numbers, and how to apply them on the plant floor. Written by Zeeshan Abbas and reviewed by Rimsha Nadeem Anwar, a Six Sigma Black Belt.
Browse by category
Lean Production
Takt time, OEE, cycle time, and line balancing.
Supply Chain
EOQ, safety stock, reorder points, and service levels.
Quality Control
Process capability, control charts, and sampling.
Operations Research
Linear programming, Little’s Law, and scheduling.
Maintenance and Reliability
MTBF, MTTR, availability, and preventive maintenance.
Manufacturing Processes
Process costing and cycle time for machining and molding.
Project Management
Earned value, critical path, and slack.
Engineering Economics
NPV, IRR, payback, and depreciation.
Industrial Finance
Cost of poor quality, break-even, and margin.
Energy Management
Compressed air, motors, VFDs, and demand.
Facility Planning
Systematic layout planning and racking design.
Facility Infrastructure
HVAC, ventilation, and industrial lighting.
Industrial Automation
Servo sizing, air receivers, and actuators.
Packaging Engineering
Pallet patterns, cube efficiency, and box sizing.
Forecasting and Analytics
Moving averages, smoothing, and forecast accuracy.
ESG and Compliance
Carbon accounting, intensity, and waste diversion.
From the blog to the tools
Every guide links to the free calculators it explains, so you can read the method and then run your own numbers. Browse all calculators by category or start with Lean Production.