Marketing KPI Examples: What a Small Business Should Measure First

A small business should start with five marketing KPIs: qualified leads, cost per lead, lead to customer rate, customer acquisition cost (CAC) and return on ad spend (ROAS) or marketing ROI. Those five tell you whether marketing brings in enquiries, what each one costs, whether they turn into paying customers and whether the money comes back. Traffic, followers and open rates are useful as diagnostics, but they sit underneath those five and should not be the numbers you report first.

A KPI (key performance indicator) is a number tied to a business goal, with a target and an owner. A metric is any number you can measure. Every KPI is a metric, but most metrics are not KPIs. The examples below are grouped so you can pick the few that match your goal this quarter, with the formula for each one.

Marketing KPI examples a small business can use

Use the minus sign as written in the formulas: subtract the cost, then divide. When you run the numbers in a spreadsheet, keep one row per month so you can see the trend, which matters more than any single month.

Which KPIs to track first

Start with the KPI closest to money that you can measure honestly today. For most service businesses that order is:

• Qualified leads. Count calls, forms, bookings and chat enquiries that came from a real prospect in your area. Leave out spam, job seekers and existing customers asking for support.
• Cost per lead. Divide the month’s marketing spend by qualified leads. Include agency fees, ad spend and software you use only for marketing.
• Lead to customer rate. This needs a simple record of which leads became customers. A CRM makes it easy, but a shared spreadsheet works to start.
• CAC. Add the sales side (time spent quoting, follow-up calls, sales commissions) once you can estimate it.
• ROAS or ROI. ROAS for ad accounts that report revenue; ROI when you want the full picture after costs. Our guide to ROAS vs ROI walks through the difference with an example.

Add the website conversion rate and speed to lead when leads are low or the lead to customer rate drops. They usually show where the leak is.

KPI examples by goal

Goal: more enquiries

• Qualified leads per month, split by channel (search, ads, Google Business Profile, referrals, social)
• Website conversion rate on the pages that get the most visits
• Calls from your Google Business Profile and website, counted separately

Goal: lower cost per customer

• Cost per lead by channel
• CAC, compared with the previous month
• Lead to customer rate by channel, because a cheap lead that never buys is expensive

Goal: more revenue from existing customers

• Repeat purchase rate: customers who bought again ÷ all customers in the period
• Average order value: revenue ÷ number of orders
• Email revenue per send, if you sell online

Goal: a stronger local presence

• Calls, direction requests and website clicks from your Google Business Profile
• New Google reviews per month and your reply rate
• Leads from people in the areas you serve

Leading and lagging indicators

A lagging indicator reports a result after it happens: revenue, new customers, CAC. A leading indicator moves first and predicts the result: qualified leads, quotes sent, booked consultations, speed to lead. A small business needs both. If leads drop in March, revenue usually drops later, so watching leads gives you time to fix the cause before the sales numbers show it.

A useful pairing is one lagging KPI per goal with two leading KPIs underneath it. For example, new customers per month (lagging) with qualified leads and quotes sent (leading).

How to calculate marketing ROI with an example

Say a Mississauga renovation company spends $3,000 in a month on ads and marketing services. That month it wins four jobs from marketing leads with total revenue of $40,000 and a gross margin of 30 per cent, so gross profit is $12,000.

• ROAS on revenue: $40,000 ÷ $3,000 = 13.3
• Marketing ROI on gross profit: ($12,000 − $3,000) ÷ $3,000 × 100 = 300 per cent
• CAC: $3,000 ÷ 4 = $750 per new customer, before sales time

The figures are an illustration, not a benchmark. The ROAS looks large because it ignores the cost of materials and labour, which is why ROI on gross profit is the safer number for decisions. If jobs take months to close, compare spend with the jobs that started from leads in that month, or use a three month rolling total. Our guide to marketing attribution models covers how to credit a sale that touched several channels.

What is a good CAC, ROAS or conversion rate?

There is no single good number, because margins and customer value differ by business. Work out your own break even point instead:

• Break even ROAS = 1 ÷ gross margin. With a 30 per cent margin you need a ROAS of at least 3.3 to cover the product or service cost before overhead.
• Maximum CAC = customer lifetime value × the share you are willing to spend to win a customer. Many owners start by keeping CAC under a third of LTV, then adjust once they know their cash flow.
• Cost per lead you can afford = maximum CAC × lead to customer rate. If you can spend $900 per customer and close one lead in four, you can pay up to $225 per qualified lead. Our cost per qualified lead guide shows the full model.

Compare yourself with your own last 6 to 12 months before comparing with anyone else. Published averages mix industries, cities and tracking methods, so they rarely match your business.

How to set up KPI tracking without a big system

• Count leads where they arrive. Use call tracking or at least a separate phone number for ads, form notifications to one inbox, and booking confirmations. Set up form and call tracking in Google Analytics 4 as key events; our GA4 lead tracking guide covers the setup and testing.
• Mark each lead’s source. Ask “How did you hear about us?” on forms and at the first call, and keep UTM tags on ad and social links.
• Record outcomes. Note which leads became quotes and which became customers, with the revenue. Without this step you cannot calculate CAC, ROI or the lead to customer rate.
• Keep one monthly sheet. One row per month, one column per KPI, plus a notes column for what changed (a new campaign, a price change, a slow season).
• Measure response time. Check how fast new enquiries get a reply during business hours. The speed to lead guide shows a simple routine.

How often to review marketing KPIs

Look at leading indicators weekly and lagging indicators monthly. A weekly check of leads, cost per lead and response time catches a broken form or a paused campaign within days. A monthly review of CAC, ROAS, ROI and the lead to customer rate gives enough data to judge a channel. Review the KPI list itself every quarter: drop numbers nobody acts on and add the one your next goal needs.

Keep the list short. Five to seven KPIs per business is plenty, and each one should have a person who owns it and a target for the quarter.

Common KPI mistakes

• Reporting activity as results. Impressions, clicks and followers show reach, not revenue. Keep them as diagnostics under a lead or sales KPI.
• Counting every form as a lead. Spam and job applications inflate lead counts and make cost per lead look better than it is.
• Ignoring phone calls. Many local customers call instead of filling in a form. If calls are not counted, your best channel can look like your worst.
• Changing definitions mid-year. Write down what counts as a qualified lead and a customer, and keep the definition stable so months compare fairly.
• Setting targets without a baseline. Track for two or three months first, then set a target from your own numbers.

Turning KPIs into a marketing plan

KPIs work best when each one is tied to a decision: what you will do if it rises or falls. If cost per lead climbs for two months, you review the channel. If the lead to customer rate drops, you look at response time and quoting before buying more traffic. That link between numbers and actions is the core of marketing strategy and fractional CMO work, where one senior person owns the KPI list, the targets and the monthly review for the business.

Frequently asked questions

Which KPIs should a small business track first?

Start with qualified leads, cost per lead, lead to customer rate, customer acquisition cost (CAC) and ROAS or marketing ROI. Together they show whether marketing brings in real enquiries, what each one costs and whether the money comes back. Add website conversion rate and speed to lead when you need to find a leak.

What different KPIs are there?

Marketing KPIs fall into a few groups: volume (qualified leads, booked consultations), cost (cost per lead, CAC), conversion (website conversion rate, lead to customer rate), return (ROAS, marketing ROI) and customer value (lifetime value, repeat purchase rate). Pick one or two from each group that match your goal this quarter.

What are 5 examples of metrics to measure performance?

Five useful marketing metrics are qualified leads per month, cost per lead, lead to customer rate, customer acquisition cost and return on ad spend. Each has a simple formula, and together they connect marketing activity to sales.

What is the formula for calculating KPIs?

Each KPI has its own formula. Cost per lead is spend divided by qualified leads. CAC is marketing and sales cost divided by new customers. ROAS is ad revenue divided by ad spend. Marketing ROI is gross profit from marketing minus marketing cost, divided by marketing cost, times 100.

What is the most common KPI?

Revenue growth is the most widely used business KPI. In marketing, the most common are leads, cost per lead and return on ad spend. For a small business, qualified leads and customer acquisition cost are usually the most useful pair because they link marketing to sales.

What are the four main KPIs?

A practical set of four for a small business is qualified leads, conversion rate, customer acquisition cost and marketing ROI. They cover how many enquiries arrive, how many become customers, what each customer costs and whether marketing pays back.

What are the leading indicators in KPIs?

Leading indicators move before results do: qualified leads, quotes sent, booked consultations and speed to lead. Lagging indicators report results after the fact, such as revenue, new customers and CAC. Watching leading indicators gives you time to fix a problem before sales drop.

What is a good CAC or ROAS?

It depends on your margins and customer value. Break even ROAS is 1 divided by your gross margin, so a 30 per cent margin needs a ROAS of at least 3.3. A common starting rule is to keep CAC below a third of customer lifetime value, then adjust to your cash flow. Our ROAS vs ROI guide explains both.

How do I calculate marketing ROI?

Subtract marketing cost from the gross profit marketing produced, divide by marketing cost and multiply by 100. If $3,000 of marketing brings $12,000 in gross profit, ROI is ($12,000 minus $3,000) divided by $3,000, which is 300 per cent. Use gross profit, not revenue, so product and labour costs are counted.

How often should KPIs be reviewed?

Check leading indicators such as leads, cost per lead and response time every week, and review CAC, ROAS, ROI and lead to customer rate every month. Revisit the KPI list itself every quarter so it stays tied to your current goals.

What is the 70/20/10 rule in marketing?

It is a budgeting rule of thumb: about 70 per cent of spend goes to channels that already work, 20 per cent to promising channels you are growing, and 10 per cent to tests. Your KPIs decide which bucket a channel belongs in from one quarter to the next.