Economic Order Quantity Calculator
Fill in the values and the answer updates as you type.
How the Economic Order Quantity Calculator works
EOQ = √(2 × annual demand × cost per order ÷ holding cost per unit). Ordering more often raises order costs; ordering less often raises storage costs. The reorder point is the stock level at which to place the next order, based on demand during the lead time.
Inputs and results
The Economic Order Quantity Calculator takes 4 inputs and gives 5 results.
What you enter
- Annual demand (units) — starts at 12000.
- Ordering cost per order ($) — starts at 50.
- Holding cost per unit per year ($) — starts at 2.5.
- Supplier lead time (days) — starts at 7.
What you get
- Economic order quantity
- Orders per year
- Days between orders
- Total yearly ordering + holding cost
- Reorder point
Example: Economic Order Quantity Calculator with the starting values
With annual demand 12000 units, ordering cost per order 50 $, holding cost per unit per year 2.5 $ and supplier lead time 7 days, the calculator returns:
| Economic order quantity | 693 |
|---|---|
| Orders per year | 17.3 |
| Days between orders | 21.1 |
| Total yearly ordering + holding cost | $1,732.05 |
| Reorder point | 230 |
Change any value above and the results update straight away.
Economic Order Quantity Calculator FAQ
How do I use the Economic Order Quantity Calculator?
Enter annual demand, ordering cost per order, holding cost per unit per year and supplier lead time in the fields, then read economic order quantity, orders per year, days between orders and total yearly ordering + holding cost in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Economic Order Quantity Calculator calculate?
Find the order size that minimizes ordering and holding costs. It returns economic order quantity, orders per year, days between orders and total yearly ordering + holding cost from the 4 values you provide.
What values does the Economic Order Quantity Calculator start with?
It opens with annual demand 12000 units, ordering cost per order 50 $, holding cost per unit per year 2.5 $ and supplier lead time 7 days so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Economic Order Quantity Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Economic Order Quantity Calculator for financial decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm financial decisions with a qualified professional. See the Disclaimer for more.