What you'll understand by the end of this lesson
- Why adding options to a page often makes it perform worse, not better
- How Hick's Law applies to the most common conversion points on a website
- A simple audit lens you can apply to any page in under five minutes
The principle in plain English
In the 1950s, British psychologist William Hick ran a simple experiment. He gave participants different numbers of buttons to press in response to lights, then measured how long it took them to decide.
His finding: more options meant longer decision times. Not proportionally — doubling choices didn't double the time — but consistently. Every additional option added friction.
This became Hick's Law:
The time it takes to make a decision increases with the number and complexity of choices available.
Every option you add to a page is a small tax on the visitor's attention. Stack enough taxes together, and the easiest thing for the visitor to do becomes making no decision at all.
This is not a theory about indecisive users. It describes how human cognition works under conditions of choice. Everyone experiences it.
Why it matters on websites
When a visitor lands on a page, they are not passively absorbing information. They are continuously making micro-decisions:
- Which link do I click?
- Which product do I choose?
- Which plan fits me?
- Where do I even start?
Each of these decisions costs energy. When that cost feels too high, visitors do the lowest-effort thing available: they leave.
The page didn't confuse them with complicated information. It overwhelmed them with options they were not ready to choose between.
Hick's Law does not mean fewer pages or fewer products. It means fewer simultaneous choices on any single page. The goal is not to remove what you offer — it is to not present everything at once.
Where you'll see it on real websites
Navigation menus
A menu with three items gets scanned and acted on faster than a menu with eleven.
Apple's navigation is the most cited example: five items at most, no dropdowns on the primary level. The business offers thousands of products. The navigation presents a handful of entry points.
Every item you add to a menu competes with every other item for the visitor's first click. The more items compete, the more likely the visitor is to click nothing.
Landing pages with multiple CTAs
A page with one clear CTA — "Start free trial" — asks the visitor to make one decision.
A page with five competing prompts asks them to evaluate and rank five options before acting on any of them. Each additional CTA dilutes the others.
Most visitors presented with multiple equally prominent options will either pick the safest-feeling one (usually "Learn more") or stall entirely. This is one reason focused landing pages outperform homepages on paid campaigns.
Pricing pages
Most SaaS companies offer three pricing plans. Not because three is a magical number — but because it covers the main use cases without tipping into paralysis.
Two options feel thin. Four or more requires more from the visitor than most are willing to give.
The structure that works: one option for each clear audience segment, with one visually prominent "recommended" tier. The recommendation does the choosing for people who don't want to choose.
Product category pages
Show forty-eight products on a page and fewer people buy than if you show twelve.
This has been demonstrated in multiple controlled studies — most famously the "jam study" (2000), where a larger product display drove significantly less purchasing behaviour than a smaller one. Hick's Law is the mechanism behind what that study found.
The implication: paginate, filter, and sequence thoughtfully. Keep the number of visible choices at any one moment manageable.
The CRO audit lens
When reviewing any page through the lens of Hick's Law, ask three questions:
1. How many choices is the visitor being asked to make on this page?
Count every clickable element, every competing CTA, every navigation option visible without scrolling. An honest count is often higher than you expect.
2. What is the single most important action on this page?
Not the second most important. The one thing this page exists to do. If the answer is unclear, that is the problem — and no amount of layout work will fix it.
3. Is everything else clearly secondary?
Secondary options can exist. But the primary CTA should look like the primary CTA. If everything is equally prominent, nothing is.
A quick test: open a page and give yourself five seconds. What do you click? If the answer isn't obvious, Hick's Law is working against that page.
What this is not
Hick's Law is not an argument for stripping pages down to nothing.
It doesn't say less is always better, or that visitors can't handle complex information. It says that when the number of choices increases, so does the friction of deciding.
Managing that friction — through clear hierarchy, focused pages, and deliberate sequencing — is what the principle is actually about.
The visitors who arrive on your site already have a goal. Hick's Law is a reminder not to get in the way of it.
All terms referenced in this lesson — friction, CTA, funnel, landing page — are defined in the CRO glossary.
Hick's Law says that as the number of choices increases, decision time...
You can reduce choices on individual pages — but how do the pages connect? What happens as a visitor moves from one step to the next?