Conversion
Conversion & UXAlso: Goal Completion · Conversion Event
Quick definition
A conversion is when a visitor completes a specific desired action — a purchase, form submission, call booking, download or any other goal that represents progress through your marketing funnel.
Where it shows up in the data
The primary goal: a purchase, a qualified lead, a subscription. The action that most directly maps to revenue.
Smaller actions that indicate intent or progress: newsletter signup, add to cart, video watch, page scroll depth. Micro conversions predict macro conversion likelihood.
The percentage of visitors who complete a conversion. Calculated as conversions divided by sessions (or unique visitors) multiplied by 100.
The sequence of steps a visitor moves through from arrival to conversion. Each step has a drop-off rate that can be measured and optimised.
What it actually means
Conversions are the actions that move visitors down your funnel toward revenue. The most important are macro conversions — purchases, qualified lead submissions, bookings. Supporting these are micro conversions — the small indicators of engagement and intent (add to wishlist, pricing page visit, case study download) that predict who's likely to convert.
Conversion rate is calculated by dividing the number of conversions by the number of sessions or visitors in a period. But raw conversion rate is only meaningful in context: what traffic source, what type of visitor, what page, what offer. A 1% conversion rate on branded search traffic to a purchase page is terrible. A 1% conversion rate on cold display traffic to a lead form might be excellent.
Improving conversion rate (CRO) is typically more cost-efficient than increasing traffic, because the same visitors generate more revenue without additional acquisition spend.
A conversion rate means nothing without knowing what kind of traffic it's converting. 5% of cold Google Display traffic is not the same as 5% of warm email traffic.
How to calculate it
Conversion Rate = (Number of Conversions ÷ Number of Sessions) × 100
Worked example. An e-commerce store has 10,000 sessions in October and 220 purchases. Conversion rate = 220 ÷ 10,000 × 100 = 2.2%. Broken out by source: organic search (500 sessions, 25 purchases = 5%), paid social (3,000 sessions, 42 purchases = 1.4%), direct (1,000 sessions, 60 purchases = 6%).
The Australian context
Australian e-commerce conversion rates are generally slightly lower than US benchmarks, partly due to higher shipping cost sensitivity. Australian professional services and B2B lead generation pages often convert at higher rates than global benchmarks due to more targeted, less volume-driven traffic strategies.
Where people get this wrong
Related terms
Common questions
What is a good conversion rate for an Australian e-commerce site?
The industry average is 1.5-2.5%, but good benchmarks vary by category. Fashion: 1-2%. Beauty: 2-4%. Electronics: 0.5-1.5%. More important than the benchmark is your own trend: is your conversion rate improving over time with consistent traffic quality?
How do I track conversions in GA4?
In GA4, conversions are tracked as events marked as key events in the admin panel. Define your macro conversions (purchase, generate_lead, booking_complete) as key events. Micro conversions (add_to_cart, form_start) can be tracked as events without marking them as key events.
What is the difference between a conversion rate and a click-through rate?
Click-through rate (CTR) measures the proportion of people who click on an ad or link. Conversion rate measures the proportion who complete a desired action after arriving. CTR is a traffic metric; conversion rate is a funnel efficiency metric.
How much can conversion rate optimisation improve conversions?
CRO projects typically deliver 10-30% conversion rate improvements in the first 6-12 months. The biggest gains come from fixing fundamental UX issues (slow load speed, broken forms, unclear CTAs) rather than micro-optimisations. The highest-impact CRO work is usually identifying and removing friction, not just testing button colours.
Keep exploring
About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
How we think →