Calculators

Calculate Your FI Number With State and Federal Taxes (It’s More Than You Think)

Written by Adam on April 18, 2021. Updated January 8, 2023.
5 min read. Financial Independence, Interactive, Taxes, Calculators, Blog, Minafi, Canonical. 10 Comments

Your FIRE number is often calculated by multiplying your expenses by 25. That's the amount of after-tax money you need. But how much extra do you need in taxes?[Read more...] about Calculate Your FI Number With State and Federal Taxes (It’s More Than You Think)

Retirement Simulator

Quickly and easily run a simulation of thousands of potential futures based on past events to see if your retirement plans may succeed or fail.[Read more...] about Retirement Simulator

Which Accounts Should You Use to Invest for Retirement? [Interactive]

Written by Adam on September 21, 2020. Updated January 8, 2023.
11 min read. Calculators, Personal Finance, Blog, Minafi, Canonical, Interactive, Investing. 7 Comments

An interactive guide to figuring out which accounts you should use, and how much to invest in each, for retirement.[Read more...] about Which Accounts Should You Use to Invest for Retirement? [Interactive]

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Investment Fees Calculator – Compute Advisor, Expense Ratio and Load Fees Over Time

Did you know that fees can eat into a majority of your portfolio gains over just 30 years? By understanding how fees work, you can see your investments more than double![Read more...] about Investment Fees Calculator – Compute Advisor, Expense Ratio and Load Fees Over Time

Exponential Growth Calculator [solve for any variable]

Written by Adam on May 27, 2019. Updated January 8, 2023.
4 min read. Interactive, Investing, Calculators, Blog, Minafi, Canonical. Leave a Comment

Use these calculators to solve for exponential growth. There's 4 different calculators, allowing you to provide any variables you know and solve for the unknown one.[Read more...] about Exponential Growth Calculator [solve for any variable]

The Rule of 72 Calculator: How to Perform Compound Interest Calculations In Your Head

Written by Adam on November 12, 2018. Updated January 8, 2023.
4 min read. Interactive, Calculators, Blog, Minafi, Canonical, Investing. 1 Comment

The Rule of 72 is a formula for estimating how many years it will take for an investment to double in value with a given interest rate. The formula is simple enough and close enough to the computed value that you can use it for ballpark estimate with very little effort.[Read more...] about The Rule of 72 Calculator: How to Perform Compound Interest Calculations In Your Head