Purchase frequency is an important ecommerce metric that measures how often customers buy from your business within a specific time period. It shows the average number of orders placed by each customer and helps you understand buying habits, customer loyalty, and overall brand engagement.
By tracking purchase frequency, you can identify seasonal trends, forecast future sales, and evaluate customer retention efforts. It also helps you make strategic decisions about marketing campaigns, product offerings, and loyalty programs.
For example, a grocery delivery app may see weekly purchases from its best customers, while a furniture retailer might expect only one or two orders per year. The key is knowing what “normal” looks like for your business.
To calculate purchase frequency, use this simple formula:
Purchase Frequency = Total Number of Orders ÷ Total Number of Unique Customers
Example:
If your store processed 600 orders in a quarter from 400 unique customers, the purchase frequency would be 1.5. That means, on average, each customer made 1.5 purchases during that period.
Tip: Always count unique customers, not total transactions. This gives you a true picture of repeat purchasing behavior rather than raw sales volume.
Tracking purchase frequency helps you measure customer retention — how often customers come back to buy again. Retained customers typically have a higher lifetime value and are cheaper to re-engage than acquiring new ones.
Key benefits include:
Although they both measure customer loyalty, these metrics serve different purposes:
For example, two shops might both have a 50% RPR, but one has customers who buy multiple times per year, while the other only sees occasional repeat purchases. Purchase frequency reveals that difference in depth.
There is no universal benchmark, since purchase frequency depends heavily on your industry and product type. Essential goods and consumables (like food, coffee, or pet supplies) see higher purchase frequencies, while luxury or durable goods (like furniture or cars) have naturally lower ones.
Here are average yearly purchase frequency benchmarks from ecommerce studies:
These figures give a rough idea of how often customers are expected to buy in different sectors.
1. Launch a Loyalty Program
Reward repeat customers with points, exclusive discounts, or early access to sales. This builds emotional loyalty and encourages more frequent purchases.
2. Personalize Offers
Use customer data to send personalized product recommendations or reminders when it’s time to reorder. Tailored messages increase conversion and repeat orders.
3. Diversify Your Product Range
Offer complementary items or bundles to encourage customers to buy more often. Essentials can serve as anchors, while add-ons boost order value and frequency.
4. Stay Connected
Email and SMS campaigns keep your brand top of mind. Send helpful content, product updates, or personalized offers to re-engage past customers.
5. Offer Subscriptions
If your product fits, create a subscription model. It guarantees recurring orders and makes purchasing effortless for customers.
Purchase frequency measures how often customers buy, while CLV estimates the total revenue a customer brings during their relationship with your business. The two metrics are closely linked.
Most ecommerce brands track it quarterly or annually, but fast-moving industries may prefer monthly monitoring.
High-value products such as furniture or electronics are purchased less frequently by nature. What matters is consistency, not absolute frequency.
Not always. You must also consider margins, average order value, and acquisition costs. Profitability comes from balancing these factors.
Yes. Even basic CRM systems or ecommerce dashboards can calculate this metric using customer order data.