When you first launch an ecommerce business, most of your time and resources will go into setting up the site and facilitating orders. Key performance indicators (KPIs) probably aren’t on your radar yet.
However, as you get more comfortable with running an ecommerce store, you’ll eventually want to start focusing on optimization and improvements. This is where ecommerce KPIs come into play. But how do you know which ones to focus on? Let’s delve into the top ecommerce KPIs that can help you assess and improve your online business.
What are ecommerce KPIs?
Ecommerce KPIs are measurable values that show how effectively an online store is working toward its business goals. They help you track performance across areas such as website traffic, sales, marketing, customer behavior, and profitability.
Unlike brick-and-mortar stores, online businesses have access to a wealth of tools, data, and insights that can help business owners glean trends and measure performance.
These ecommerce KPIs can alert you to certain problems related to your website, products, and business model. A low conversion rate may point to friction in the checkout process, while a high cost per acquisition could signal that a marketing campaign needs adjustment. Tracking the right KPIs helps you spot these opportunities earlier, make data-informed decisions, and build a stronger ecommerce strategy
Top 5 KPIs to track for your ecommerce business
Every business has different needs and priorities, but most ecommerce operations can benefit from analyzing KPIs like average order value, cart abandonment rate, conversion rate, cost per acquisition, and customer lifetime value.
1. Average order value
Average order value (AOV) shows how much customers spend per purchase, on average.
To calculate it, divide your total revenue by the number of orders placed during a set period. For example, if your online store generates $10,000 from 200 orders, your AOV is $50.
The AOV for a coffee shop likely hovers around $7. The AOV for a jewelry store might be $400 or more, depending on the market.
AOV gives ecommerce businesses a clearer picture of the revenue each sale generates. Increasing this metric can help grow revenue without needing to attract more website visitors or invest more in customer acquisition.
Product bundles, related product recommendations, and free-shipping thresholds can all encourage customers to add more items to their carts. Tracking AOV alongside conversion rate and customer acquisition cost can also reveal how well promotions, pricing, and product suggestions support your sales goals.
2. Cart abandonment rate
Cart abandonment rate tracks the percentage of people who add items to their carts without completing the purchase. As of 2026, the average global ecommerce cart abandonment rate sits at 70.22%. This means that despite your efforts to bring people to your website and promote your products, 70% of people who add items aren’t going to buy them.
Cart abandonment can highlight issues in your ecommerce business, such as a long or complicated checkout process.
Once you know your cart abandonment rate, you can start making decisions to lower this number. Most ecommerce experts suggest keeping the checkout process as streamlined as possible by allowing guest checkouts, automatically using the same address for billing and shipping, and adding one-click payment options like PayPal or Amazon Pay. You can also provide better product information and send cart abandonment notifications to encourage shoppers to complete checkout.
Small changes in this ecommerce KPI can add up and quickly grow your sales.
3. Conversion rate
Conversion rate measures the percentage of website visitors who complete a desired action, such as making a purchase. It is calculated by dividing the number of orders by the total number of website visitors, then multiplying the result by 100.
For example, if 5,000 people visit your online store and 150 place an order, your conversion rate is 3%. If your tracking setup counts every conversion action, the rate can exceed 100% because one visitor may complete multiple tracked actions.
Conversion rate shows how effectively your online store turns traffic into sales. It can help set realistic ROI expectations as you scale marketing campaigns and compare performance against relevant industry benchmarks.
A lower-than-expected rate may indicate that you are attracting the wrong audience, experiencing technical issues, or creating friction with unclear product details, unexpected shipping costs, or a complicated checkout process.
Track conversion rate across your site, individual product pages, marketing channels, and stages of the shopping journey. Pair it with data from heatmaps, customer relationship management tools, and metrics like AOV to identify opportunities for improvement. For instance, if shoppers who view lower-priced products convert less often, clearer product descriptions or a lower free-shipping threshold may encourage more completed purchases.
4. Cost per acquisition
Cost per acquisition (CPA) measures how much your business spends to gain one new customer or completed sale.
Calculate CPA by dividing your total marketing and advertising costs by the number of acquisitions generated during the same period. For example, if your store spends $2,000 on a marketing campaign and gains 100 new customers, its CPA is $20.
CPA helps you understand whether your marketing investment is generating revenue efficiently.
A rising CPA can mean that advertising costs are increasing, campaigns are reaching the wrong audience, or landing pages are not converting as well as they should. Compare this ecommerce KPI across marketing channels, campaigns, and customer segments to see where your budget is working hardest.
5. Customer lifetime value
Customer lifetime value (CLV) estimates the total revenue a customer is expected to generate throughout their relationship with your business. It helps you understand the long-term value of earning and keeping their business.
The easiest way to calculate CLV is to multiply your average order value by the average number of purchases a customer makes over a set period. For a more detailed estimate, factor in customer retention rates, profit margins, and the average length of the customer relationship.
For example, a customer who spends an average of $50 per order and places four orders per year has an annual value of $200. A customer who continues shopping with your business for three years would have an estimated CLV of $600.
CLV can guide decisions about customer acquisition, retention, and marketing spend. A higher CLV may support a higher cost per acquisition because the customer is likely to generate more revenue over time.
Other ecommerce KPIs to consider
While AOV, cart abandonment rate, conversion rate, CPA, and CLV offer a strong foundation for measuring ecommerce performance, these additional KPIs can add context and help identify opportunities across your marketing efforts, customer experience, and operations.
- Return on ad spend (ROAS): The revenue earned for every dollar spent on advertising. ROAS helps you evaluate the profitability of individual campaigns, channels, and audiences.
- Repeat purchase rate: The percentage of customers who make more than one purchase. This metric can show how well your products, customer experience, and retention efforts encourage customers to return.
- Customer retention rate: The percentage of customers who continue doing business with your store over time. Strong retention can reduce reliance on acquiring new customers and support long-term revenue growth.
- Return rate: The percentage of orders customers send back. Tracking return rate can reveal issues with product descriptions, sizing information, product quality, or shipping expectations.
- Revenue and profit margin: Revenue shows how much your store earns through sales, while profit margin shows how much remains after costs. Reviewing both helps you assess growth and make sure your sales strategy supports profitability.
Choosing the right ecommerce KPIs
The right ecommerce KPIs depend on your business goals, growth stage, and the areas of your store that need the most attention. Focus on metrics that connect directly to the outcomes you want to improve, then review them regularly to spot trends and make informed decisions.
- Set clear business goals: Choose KPIs that support a specific goal, such as increasing revenue, improving profitability, attracting new customers, or encouraging repeat purchases.
- Start with a focused group of metrics: Tracking too many KPIs can make it harder to identify what matters. Start with core metrics and add more as you go.
- Consider your business model: Subscription businesses may prioritize customer retention and CLV, while stores with higher-priced products may focus more closely on conversion rate and CPA.
- Review performance over time: A single data point rarely tells the full story. Compare KPI performance across weeks, months, or campaigns to identify meaningful changes.
- Use KPIs together: Each metric provides one part of the picture. For example, a rising conversion rate may look positive, but a declining AOV could affect overall revenue.
- Adjust as your business changes: Your most important KPIs can shift as your store grows, your product catalog expands, or your marketing strategy evolves.
Why ecommerce KPIs should be measured together
Ecommerce KPIs are most useful when they’re viewed together. Each metric captures one part of your store’s performance, but no single number can explain the full customer journey or show the true impact of a business decision.
For instance, an increase in conversion rate may appear positive at first glance. Pairing it with AOV, CPA, and profit margin can reveal whether that growth is generating meaningful, profitable revenue. Similarly, a higher customer acquisition cost may be sustainable when customers have a strong lifetime value and continue to make purchases over time.
Reviewing related KPIs together can help you identify the reasons behind performance changes, prioritize the right improvements, and avoid making decisions based on incomplete data.
Tracking your KPIs using a dashboard
Once you have identified which ecommerce KPIs are most important for monitoring the health of your site, develop a process to check them regularly.
Some companies achieve this through Google Analytics reports or by developing their own reporting tools that provide insights into the information they need. Your report should be both clear and valuable.
For example, a costume retailer might not need to compare sales in October to those in November if Halloween is their biggest sales holiday.
Still, they would want to see how the AOV and CPA ecommerce KPIs have changed year-over-year. Test different views to maximize the value of your data.
Grow your ecommerce store with Airo AI Builder
Ecommerce KPIs give you more than a report card for your online store. They show how shoppers move from their first visit to a completed purchase, how much they spend, and what it costs to earn their business. When you track those numbers together, it becomes easier to identify the changes that can make the biggest impact.
GoDaddy Airo AI Builder can help you put those insights into action. Create an online store, add products, and establish a polished shopping experience that supports the goals behind your KPIs. As your store grows, use what you learn about traffic, conversions, orders, and returning customers to make improvements that help move your business forward.
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