Free Inventory Calculators & Tools
Use practical online calculators for inventory control, stock planning, replenishment and inventory performance, including variance, reorder point, safety stock, turnover, DIO and EOQ.
Inventory Calculators
Choose a calculator for stock accuracy, replenishment planning, inventory performance or order-quantity analysis.
Inventory Accuracy Analyzer
Analyze stock-count data, measure inventory accuracy, identify financial exposure and rank items by operational risk for focused investigation and cycle counting.
Cycle Count Planner
Build a counting schedule using ABC classes, counting intervals and daily capacity. Plan around working days, track completed counts and export your schedule.
Inventory Control Toolkit
Follow a connected workflow to measure accuracy, prioritize inventory, complete counts, investigate discrepancies and document approved corrections.
Inventory Variance Report Generator
Compare system inventory with physical stock, identify shortages and excess quantities, calculate variance values and create a report.
Reorder Point Calculator
Estimate when inventory should be reordered using average daily usage, lead time and safety stock.
Safety Stock Calculator
Estimate buffer stock using simple or advanced safety-stock methods for demand and supplier uncertainty.
Inventory Turnover Calculator
Calculate inventory turnover ratio, average inventory and inventory days using COGS and stock values.
Days Inventory Outstanding Calculator
Calculate DIO, average inventory, inventory turnover and model a target inventory scenario.
Economic Order Quantity Calculator
Calculate EOQ, order frequency, annual ordering costs, holding costs and compare your current order quantity.
From stock accuracy to replenishment planning
DIXANI inventory tools support common inventory-control decisions from physical stock verification to purchasing and replenishment.
Verify the physical quantity available in inventory.
Identify differences between system and physical stock.
Calculate safety stock and reorder requirements.
Use turnover, DIO and EOQ to improve inventory decisions.
Inventory Replenishment & Stock Planning
Use inventory planning calculators to decide when stock should be reordered and how much buffer inventory may be required.
Reorder Point Calculator
Estimate the inventory level that should trigger replenishment.
Open Calculator →Safety Stock Calculator
Estimate additional buffer stock for demand and lead-time uncertainty.
Open Calculator →EOQ Calculator
Estimate an order quantity that balances ordering and holding costs.
Open Calculator →Measure how efficiently inventory is moving
Inventory turnover and DIO can help you understand how quickly stock is being sold, consumed or converted into revenue.
Identify inventory shortages and excess stock
Use the Inventory Variance Report Generator after physical counting to investigate differences between recorded and actual stock.
Strengthen inventory accuracy and control
Use practical, experience-based guidance to classify inventory, perform controlled counts and investigate stock differences.
ABC Inventory Analysis
Calculate annual consumption value, classify A, B and C items and apply the results to counting and control.
Read ABC Guide →Inventory Accuracy Percentage
Understand record, quantity and value accuracy together with common calculation and reporting mistakes.
Read Accuracy Guide →Warehouse Cycle Count Checklist
Plan counts, control movements, complete independent recounts and correct the causes of recurring differences.
Read Cycle Count Guide →Investigate Inventory Variances
Review counts, receipts, issues, transfers, locations and documentation before approving an adjustment.
Read Variance Guide →Need downloadable inventory documents?
Use the online calculators together with DIXANI's free Excel and PDF inventory templates.
Practical tools for everyday inventory work
Useful for businesses that need straightforward inventory calculations without complex software.
Small Businesses
Support basic inventory planning and stock-control decisions.
Warehouses
Analyze stock accuracy, inventory levels and replenishment.
Retail Operations
Monitor product stock, reorder needs and inventory performance.
E-commerce Sellers
Plan product replenishment and monitor inventory investment.
Inventory Tools — Frequently Asked Questions
Are the DIXANI inventory calculators free?
Yes. The inventory tools are free to use and do not require an account.
Which calculator should I use to know when to reorder stock?
Use the Reorder Point Calculator to estimate the stock level that should trigger replenishment.
What is the difference between safety stock and reorder point?
Safety stock is additional buffer inventory. The reorder point is the stock level at which a new replenishment order should normally be placed.
What does inventory turnover measure?
Inventory turnover measures how frequently inventory is sold or consumed during a reporting period.
What does DIO mean?
DIO means Days Inventory Outstanding. It estimates the average number of days inventory remains held before being sold or used.
Can I use DIXANI inventory tools without an ERP system?
Yes. They are designed for straightforward inventory calculations where a full ERP or inventory-management system may not be available.