Optimize Your Supply Chain
25 free, instantly-available calculators covering inventory, forecasting, warehouse operations, and procurement.
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Explore CalculatorsInventory & Demand Planning
Economic Order Quantity
Find the optimal order quantity that minimizes total inventory costs.
Safety Stock
Calculate the buffer inventory needed to protect against demand spikes.
Reorder Point
Determine when to place a new order based on demand and lead time.
ABC Analysis
Categorize inventory items by their contribution to total annual value.
Inventory Turnover
Measure how many times inventory is sold and replaced per year.
Days Inventory Outstanding
Calculate how many days inventory sits in stock before sale.
Economic Batch Quantity
Find the optimal batch size for manufacturing with finite production capacity.
Carrying Cost
Calculate the annual cost of holding inventory.
Stockout Cost
Estimate the annual cost of inventory shortages.
Inventory Accuracy
Measure how closely physical inventory counts match system records.
Cycle Stock
Calculate the average inventory consumed between replenishment orders.
Pipeline Inventory
Calculate stock in transit between locations during lead time.
Forecasting
Moving Average
Forecast next-period demand from the average of recent periods.
Weighted Moving Average
Forecast demand by weighting recent periods more heavily than older ones.
Exponential Smoothing
Forecast demand with a smoothing factor balancing responsiveness and noise.
Mean Absolute Deviation
Measure the average magnitude of your forecast error.
Mean Absolute % Error
Measure forecast error as a scale-independent percentage.
Warehouse Operations
Procurement & Sourcing
Total Cost of Ownership
Calculate the fully-loaded per-unit cost of a purchase.
Lead Time Analysis
Summarize supplier lead time reliability from observed orders.
MOQ Optimizer
Compare Minimum Order Quantity options for the lowest cost per unit.
Supplier Scorecard
Roll up quality, delivery, cost, and service into one weighted score.
How It Works
Enter Your Data
Input your inventory parameters and supply chain metrics.
Instant Results
Get calculations in milliseconds based on proven formulas.
Optimize Operations
Use results to reduce costs and improve efficiency.