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Retirement Calculator News, and a Mystery Solved…

It was a blustery winter day, just about a year ago, when I stayed indoors all afternoon to work at my desk. The snowflakes stacked on the railing outside as I broke ground on new software, something I hadn’t done in years. It would be a modeling framework that I could use to research and …

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Is Your Retirement Calculator Designed for Accuracy?

Earlier this year, the Wall Street Journal published an article titled “New Study Questions Retirement Planning Calculators’ Accuracy.” It reported on an academic study of 36 retirement planning tools. The research concluded that “in most cases, the available offerings are extremely misleading.” This wasn’t news to me. My first article on the inaccuracies in retirement …

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My Favorite Retirement Calculators

I’ve used many retirement calculators. More than 80 at last count. I relied on these tools to plan my own retirement trajectory, culminating in early retirement at age 50. Then I started a blog and began reviewing retirement calculators. Over time, these posts have become the most popular on my site. I’ve recently updated my …

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10 Tips for More Accurate Retirement Calculations

Retirement calculators are not all created equal. And the differences between them are more than just an academic issue. Why? Because you’ll be using these tools to make one of the most important decisions of your life. If you’re approaching retirement, or want to someday, either you or an advisor will likely use a retirement …

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The Best Retirement Calculators

What’s so important about retirement calculators? Why are these tools of more than just technical interest? Well, they’re important because either you, or a financial planner, will use the results from a retirement calculator to make one of the most crucial decisions of your life: Are you financially independent yet, or not? If you get …

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Review: The Pralana Retirement Calculator

The reviews of free retirement calculators here have been some of the most popular posts on the site. There are certainly some useful free calculators available. And since no one calculator has a corner on predicting the future, it’s nice to have the option to run several and compare the results, without having to pay …

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Should You Pay for a Retirement Calculator?

There are lots of retirement calculators. Naturally, people want to know which ones to use and trust. The reviews I’ve written of free retirement calculators have been some of the most popular posts on this site. There aren’t too many side-by-side comparisons of retirement calculators using realistic scenarios, so those posts generated a lot of …

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The “Perfect” Retirement Calculator

The perfect retirement calculator doesn’t exist yet. But having just finished reviewing dozens of calculators in recent posts — The 3 Best Free Retirement Calculators and The Best Free Retirement Calculators: Round 2 — I can’t stop thinking about the possibilities…. For me, the perfect calculator isn’t one that is somehow more accurate at analyzing …

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The Best Free Retirement Calculators: Round 2

Last month’s post on the best free retirement calculators had the most comments ever on this blog. There were many good technical questions, a number of helpful suggestions, and even a bit of controversy. People are clearly fascinated by this topic. And for good reason. Retirement calculators are fundamental to retirement planning, playing a key …

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The 3 Best Free Retirement Calculators

Retirement calculators have an impossible job. They use various imperfect mathematical techniques in an attempt to predict the distant future. That can’t be done reliably. So they will inevitably be “wrong.” Add to that the difficulties in communicating the many variables involved, and all the possible simulation options, to everyday users with limited time. And …

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Why Most Retirement Calculators Don’t Work

Most retirement calculators are broken. It’s not that the user interfaces are confusing, or the inputs are rigid and lacking, or that they have bugs — though many share those failings. No, the problems with most retirement calculators are theoretical, and go much deeper…. Let’s start with some simple division. Say you’re retiring at age …

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