Repeat Customer Rate Calculator

How this calculator works

Calculate the percentage of customers who bought more than once during a period.

• Repeat customer rate = customers who bought more than once ÷ total customers in the period
• One-time customers = total customers − repeat customers

Pick a period long enough to see a second purchase

In a category where customers buy every two months, a 30-day window will show almost no repeat customers regardless of how loyal they are. Use a window of two to three times the typical gap between purchases, or twelve months when you want to compare year on year.

Repeat rate is not retention rate

Repeat customer rate counts anyone who bought twice in the window, including customers acquired during it. Retention rate, which the churn calculator produces, follows a cohort that existed at the start and asks how many are still there. They answer different questions: repeat rate asks whether people come back at all; retention asks whether you keep the ones you have.

Why loyalty teams track it

Repeat customers are usually a minority of the customer count and a majority of the revenue, so a few points of repeat rate move sales more than the same effort on acquisition. The lever is the second purchase. Most one-time customers never make it, which makes the days after a first order the most valuable place to put loyalty and CRM effort.

Common mistakes

Counting orders rather than customers, so one customer with five orders looks like five repeat customers. Guest checkout splitting one person into several identities, which pushes the rate down. Mixing wholesale or business accounts, which reorder by nature, with consumers.

These calculators are intended for planning and benchmarking. Use your own finance, attribution, and campaign data before making final budget decisions.