smv calculator
SMV Calculator: Full SMV Workflow for Accurate Garments Planning
This guide explains SMV from operation time study to allowance addition, then shows how to apply SMV in target, efficiency, and costing decisions.
Bangladesh-focused guide with practical calculation workflow.
Calculator in This Article
SMV Calculator
Calculate Standard Minute Value for garment operations. Essential for production planning and costing.
SAM Calculator
Calculate Standard Allowed Minutes for garment operations. Used for line balancing and target setting.
Line Efficiency
Calculate sewing line efficiency with all required IE fields: day production, SMV, manpower, working hours, and target/day.
Production Capacity
Calculate daily/hourly production capacity of a sewing line.
Core SMV Formula
- SMV = Basic time + (Basic time × Allowance %)
- Use consistent allowance policy by factory and style type.
- Document method sheet version used in calculation.
Input Data Required
- Operation-wise observed basic time
- Allowance percentage
- Bundle/handling conditions
- Machine and operator profile.
How SMV Connects to IE KPIs
- Line Efficiency % = (Output × SMV) / (Manpower × Working Minutes) × 100
- Target/Day = (Manpower × Working Minutes × Efficiency %) / SMV
- Capacity planning depends directly on SMV accuracy.
Quality and Audit Controls
- Validate outliers in time-study observations.
- Freeze approved SMV before production planning.
- Recalculate when method, machine, or style complexity changes.
Costing and Delivery Impact
- Wrong SMV creates wrong CM and margin assumptions.
- Overstated SMV inflates labor cost and weakens competitiveness.
- Understated SMV creates unrealistic target pressure.