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Days of stock calculator

Estimate how long your available stock will last at your current sales rate.

Units available for sale
Units sold per day

Your inputs stay in this page. No account or upload needed.

YOUR ESTIMATE

30
days of stock remaining

Estimated coverage if your current sales rate continues.

240 units ÷ 8 units per day

How the calculation works

Divide your available units by the average number of units you sell each day. Use the same product and unit of measure for both inputs.

With 240 available units and average sales of 8 units a day, you have approximately 30 days of stock.

What to keep in mind

Use stock available for sale, excluding damaged or already allocated units. The estimate ignores future deliveries and assumes demand stays steady. If daily sales are zero, there is no finite estimate.

Doing this for every product?

A calculator is a useful starting point. If keeping stock records current is becoming the hard part, explore whether dedicated software fits your workflow.

Read the inFlow buying guide →