What is a reorder point and how do I set one?

Setting reorder points so you never run out

A reorder point is the stock level at which you place a new order, calculated from how fast you use a material and how long your supplier takes to deliver, plus a safety buffer.

The short version

Measure weekly usageTotal the amount consumed by the orders you actually fulfilled over four weeks and divide by four.
Know your lead timeAsk each supplier how many days from order to doorstep, then use the slowest realistic figure.
Reorder point formulaWeekly usage divided by seven, multiplied by lead time in days, plus a safety buffer of roughly one week of usage.
Group by supplierPlacing one combined order per supplier cuts delivery fees and reduces the number of things you have to remember.

Takeaway. A reorder point converts panic buying into a calm weekly shopping list.

Put it into practice

Makeable does this arithmetic for you every time your stock moves. You can try the capacity calculator on the home page without an account, or compare plans for makers, including the free tier when you are ready to keep your own numbers.