December 9, 2025

Credit: Diego Cervo/Shutterstock

Table of Contents

It’s likely you’ve heard of the Pareto principle (maybe even while reading my tips on how to be more productive at work or study more effectively). But do you really know what the Pareto principle is?

To be honest, I only just started to get a grip on it fairly recently, because it’s a lot easier to read about than put into practice. Also known as the 80/20 rule or the law of the vital few, it can be little confusing at first, but understanding and implementing it can truly transformative, helping you to better manage your time and get more done with less effort. Who doesn’t want that?

What is the Pareto principle?

Basically, the Pareto principle states that 80% of your outcomes result from just 20% of your effort. The principle was coined by consultant Joseph M. Juran in the 1940s and he named it after a sociologist and economist named Vilfredo Pareto, who was famous for pointing out that 80% of the land in Italy was owned by 20% of the total amount of people. You’ll hear it described a number of ways: 80% of results come from 20% of the work, or 80% of effects come from 20% of the causes. No matter the wording, it all means the same thing; just focus on that 80/20 split.

An often-cited example of how this works for everyday people is learning the piano or guitar. You study individual notes, keys, time signatures, tempos, chords, rhythms, styles and so much else, including music theory. But when it’s time to jam, you’re probably falling back on a handful of the most common chords—and it sounds fine. In that way, a huge chunk of your actual playing is dependent on just a few small things you’ve mastered (although you do need that knowledge of keys and styles to make it come together).

For another example, consider how a few truly excellent players tend to be responsible for the majority of points scored by your favorite sports team during a given game. Now think of how much you do in a day: You go to your job, work any side gigs you might have, do household chores, and devote time to hobbies, child-rearing, studying for classes, going to the gym, and seeing friends. You do a lot, but you only get paid for a small fraction of that work, which is why you might prioritize your job over some of the other things on the list—even side hustles, which typically generate less money. That’s where the 80/20 rule comes in: It helps you prioritize your to-do list.

What do you think so far?

How to use the Pareto principle to maximize your results

You can identify ways the general principle manifests in your work. For instance, if you work for a retail company, you might notice a major chunk of profits comes from a small but dedicated group of consistent buyers. It would make sense, then, to focus a majority of your work on appealing to them, or to bringing others into that group—maybe by strategic, data-based advertising. If the majority of would-be consumers ignore your email marketing, don’t keep doing what you’re doing. Instead, zero in on how you can add more people to that core group, or just go all-in on the core group itself. The real trick to using this principle is figuring out how it applies to your own day-to-day tasks.

When you make your daily to-do list, use a prioritization technique, like the 1-3-5 list, Kanban, or Eisenhower Matrix. Right off the bat, this helps you figure out which of your necessary tasks for the day are important and which can be pushed off or delegated. Spend about two weeks working on your to-do lists every day as normal, but at the end of the day, write down what the direct results of each activity were. So, if you spent half an hour responding to emails and netted 10 new clients from that, write it down. If you dedicated an hour to compiling the data for a big meeting that got your project greenlit, mark it down. Over time, the basic functions that yield the biggest results will become apparent and you can start making those activities—the 20%-of-your-effort activities—a bigger priority, so you waste less time on the tasks that don’t produce as many results.

Working backward and considering the effects, then identifying their causes, will help you prioritize and get more done, but it can also help you with non-work tasks. In a more abstract sense, a relatively small amount of effort is required to grab a coffee with a friend or help your kid with homework, but the 80% yield might be reenforcing and maintaining a friendship or helping your child feel safe and accomplished, which have longer-lasting impacts than the 30 minutes those tasks take. When you free up your working time through prioritization and an understanding of the Pareto principle, you have more opportunities to spread it around in other areas of your life and keep reaping the benefits.

The Daily Newsletter Ready to do everything better?

Jordan Calhoun

Get daily tips, tricks, and tech guides from Jordan and the team.

The Daily Newsletter Ready to do everything better? Get daily tips, tricks, and tech guides from Jordan and the team.