Holding Cost Calculator
Calculate the total annual cost to hold inventory, including capital cost, storage and handling, insurance, and shrinkage. Express cost as a percentage of inventory value and per unit.
Enter your average inventory value and cost rates to calculate the total annual holding cost as a percentage and dollar amount. Optionally break down cost per unit.
Book value of average inventory on hand
Cost of capital or opportunity cost of funds tied up
Warehouse rent, utilities, labour as % of inventory value
Inventory insurance premiums as % of inventory value
Inventory loss due to theft, damage, obsolescence
To calculate holding cost per unit
Formula
Holding Cost Rate (%) = Capital % + Storage % + Insurance % + Shrinkage % | Annual Holding Cost ($) = Average Inventory Value × (Holding Cost Rate ÷ 100) | Cost per Unit = Annual Cost ÷ Units
Holding cost is the total cost to store and manage inventory over one year. It includes the opportunity cost of capital tied up in inventory, physical storage and handling, insurance, and expected losses from shrinkage or obsolescence. This is a key component of the EOQ formula.
Worked Example
$100,000 average inventory: 10% capital cost, 5% storage, 1% insurance, 2% shrinkage.
Total holding cost rate = 10% + 5% + 1% + 2% = 18%
Annual holding cost = $100,000 × 18% = $18,000
If 5,000 units in inventory:
Holding cost per unit = $18,000 ÷ 5,000 = $3.60/unit annually
At $3.60 per unit per year, you should optimize order quantities to avoid overstocking. If ordering cost is low, order more frequently in smaller lots. If ordering cost is high, order in larger batches.
Frequently Asked Questions
Use this in your workflow
Use this calculator with the Economic Order Quantity Calculator to optimize order size and frequency. Pair with the Inventory Turnover Calculator to assess overall inventory health. Browse all Free Business Calculators.
When to use this calculator
- →Computing the annual cost of holding inventory as input to EOQ decisions
- →Benchmarking your inventory cost against industry standards
- →Evaluating trade-offs between larger order sizes (lower ordering cost) and higher holding cost
- →Justifying investment in warehouse automation or better demand forecasting to reduce inventory levels
Worked example: manufacturing SKU holding cost
A useful reference before entering your own figures above.
| Component | Rate / Amount |
|---|---|
| Average inventory value | $200,000 |
| Capital cost rate | 12% |
| Storage cost rate | 6% |
| Insurance rate | 0.5% |
| Shrinkage/obsolescence rate | 1.5% |
| Total holding cost rate | 20% |
| Annual holding cost | $40,000 |
| Units in inventory | 10,000 units |
| Holding cost per unit | $4.00/unit/year |
At $4/unit annually, this manufacturer needs to ensure order quantities are optimized to balance ordering cost against this significant carrying cost. If ordering cost is $100 per order, the EOQ is around 400 units.
Common mistakes
- !Using book value instead of average inventory value. Use the midpoint of beginning and ending inventory or a rolling average.
- !Forgetting to include capital cost. This is often the largest component (10–15%), especially for high-value inventory.
- !Underestimating shrinkage or obsolescence. For perishable or fast-changing products, this can be substantial.
- !Mixing annual and monthly rates. Ensure all inputs are annual percentages for consistency.
Responsible inventory management
Holding cost is a major component of total inventory cost. Balancing it against stockout risk and ordering cost is central to supply chain optimization. Use this calculator to quantify the cost of excess inventory, then pair with the Economic Order Quantity and Safety Stock calculators to find the optimal order strategy.
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Frequently asked questions
What is holding cost?
Holding cost is the total annual cost to store and manage inventory, including opportunity cost of capital, storage and labour, insurance, and expected losses from shrinkage or obsolescence.
What is a typical holding cost rate?
Typical holding cost ranges from 12% to 30% of inventory value annually. It depends on industry, product type, and storage conditions. Electronics and perishables typically have higher rates.
How do I calculate capital cost?
Capital cost is the interest rate or opportunity cost of the money tied up in inventory. If your cost of capital (WACC) is 10%, use 10% as the capital cost rate.
What is included in storage cost?
Storage cost includes warehouse rent or building depreciation, utilities (electricity, heating, cooling), labour for handling and management, and equipment maintenance. Express this as a percentage of inventory value per year.
How do I estimate shrinkage rate?
Shrinkage includes theft, damage, and obsolescence. Use historical data from your operations. For retail, 1–2% is typical. For perishable goods, 5–10%. For fast-changing items (tech), add additional percentage.
How does this relate to EOQ?
Economic Order Quantity (EOQ) balances ordering cost against holding cost. Higher holding cost means order in smaller quantities more often. This calculator provides the holding cost input to the EOQ formula for optimal order decisions.