Conversion funnel: definition, steps and optimisation
Updated on February 22, 2026
Quick definition
The conversion funnel is the sequential representation of the steps a user goes through on a website or application before completing a defined goal — purchase, sign-up. The conversion funnel refers both to the visualisation tool and the marketing concept that allows friction points in the user journey to be identified and corrected.
How it works
The funnel image perfectly illustrates the principle: at each step, some users drop off, gradually narrowing the flow to the final conversion.
A typical e-commerce funnel includes:
- 1Home page
- 2Category page
- 3Product page
- 4Add to cart
- 5Checkout
- 6Payment
- 7Confirmation
For each transition, you compute the step conversion rate: (users at next step / users at current step) × 100.
Example: 1,000 users on the product page → 300 add to cart (30%) → 180 begin checkout (60%) → 90 complete payment (50%). The overall conversion rate is 9%.
Funnel analysis identifies the biggest drop-off point and concentrates optimisation effort there. Funnels can be linear (a single sequence) or multi-path (several routes leading to conversion).
Why it matters
Conversion funnel analysis is the most powerful tool for diagnosing revenue losses. Rather than chasing more traffic (expensive), funnel optimisation lets you extract more value from existing traffic.
A 10% improvement in conversion rate at each step of a 5-step funnel can multiply final revenue by 1.6 (1.1^5).
For marketing and product teams, visualising the funnel aligns all stakeholders on optimisation priorities and justifies investments by their direct revenue impact.
How to improve or use it
- 1Identify the step with the highest drop-off rate — that's where you lose the most value.
- 2Analyse the reasons for drop-off with heatmaps, session recordings and exit-intent surveys.
- 3Test hypotheses with A/B tests, measuring impact on the next-step conversion rate.
- 4Reduce friction: number of form fields, checkout steps, loading time.
- 5Strengthen reassurance at each step (return policy, payment security, customer reviews).
- 6Implement abandoned-cart recovery emails for e-commerce funnels.
With Sublim
Sublim lets you create custom conversion funnels by defining sequences of goals and pages to track. Cookieless, Sublim provides a complete view of the funnel without data gaps tied to consent refusal, ensuring measured drop-off rates reflect the reality of your user journey.
Frequently asked questions
What is the difference between a funnel and a user journey?
A funnel is a linear, simplified representation of the steps toward conversion, focused on drop-offs at each step. A user journey is a more complete, non-linear representation of the user's overall experience, including off-site touchpoints (social media, email, search) and emotional states. The funnel is an analytical tool, the user journey is a design tool.
How do I configure a conversion funnel in an analytics tool?
Most analytics tools let you define a funnel by specifying a sequence of URLs or events that make up the steps. In GA4, this is done via Explorations > Funnel. In tools like Mixpanel or Amplitude, funnels are a core feature. Just define the steps in order and the tool automatically computes pass and drop-off rates.
What is a reverse funnel?
A reverse funnel starts from a completed conversion and works backwards to analyse which path the converted users took. Rather than analysing drop-offs, you analyse successes to understand which journey leads most often to conversion and reproduce those conditions for all users.
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