Operations Management Calculators
Select a calculator below and enter your data.
Inventory Management
Economic Order Quantity (EOQ)
EOQ = √((2 × D × S) / H)
Annual Demand (D):
Ordering Cost (S):
Holding Cost (H):
Calculate EOQ
Reorder Point (ROP)
ROP = d × L
Daily Demand (d):
Lead Time (L in days):
Calculate ROP
Capacity & Utilization
Utilization
Utilization = (Actual Output / Design Capacity) × 100%
Actual Output:
Design Capacity:
Calculate Utilization
Efficiency
Efficiency = (Actual Output / Effective Capacity) × 100%
Actual Output:
Effective Capacity:
Calculate Efficiency
Forecast Accuracy
Mean Absolute Deviation (MAD)
MAD = Σ|A - F| / n
Actual Values (A):
Forecast Values (F):
Calculate MAD
Mean Squared Error (MSE)
MSE = Σ(A - F)² / n
Actual Values (A):
Forecast Values (F):
Calculate MSE
Mean Absolute Percentage Error (MAPE)
MAPE = (Σ(|A - F| / A) / n) × 100%
Actual Values (A):
Forecast Values (F):
Calculate MAPE
Productivity
Single-Factor Productivity
SFP = Output / Input
Output:
Input:
Calculate SFP
Multi-Factor Productivity
MFP = Output / (Labor + Material + Overhead)
Output:
Labor Cost:
Material Cost:
Overhead Cost:
Calculate MFP