What is an Investment Calculator?

Investment calculators help you determine whether investing in a particular stock is a good idea or not.

Our calculators will help you determine:

  • How much you need to retire
  • A company’s margin of safety or target sale price (the price you should buy at)
  • The most important growth rates to know when researching a company

One of the most difficult aspects of investing is knowing exactly how to value a business and figuring out if a stock is at a good price to buy. These calculators take the guesswork out of investing on your own.

Why Use an Investment Calculator?

Even if you think you have a good idea about how much money you may need to retire, or whether
you’re buying a stock at a good price, investment calculators can still provide you with valuable information.

For example, our retirement calculator will determine exactly how much you need to retire so that you can live comfortably through your retirement years.

It factors in the cost of your lifestyle, expected rate of return, and the years you have left to save before retirement to give you a personalized goal number.

Our Sticker Price and Margin of Safety Calculator will help determine how much a company is worth, and how much you should buy it for based on its true value. Sometimes stocks sell for much more than they’re worth. Sometimes, they’re priced much lower than their true value. This calculator tells you if you’re getting a good deal when you buy their stock.

How to Use These Investment Calculators

Rule #1 investing is based around some very specific calculations that help paint a picture for how a business is being run, if a stock is selling at the right price, and how long it should take you to make your money back when you invest.

Of course, these calculators should not be the only area you look at when you’re thinking of investing in the stock market. First, you need to fully understand the company and ensure that it matches your values.

Second, make sure it has a durable competitive advantage. Third, make sure it’s run by honest people.

After that, use our handy investment calculators to help you with the rest.

ROIC Calculator

ROIC Calculator

Return on Invested Capital

This calculator determines ROIC; the most important number to tell you if a business is being run well.

Calculate ROIC
EPS Growth Rate

EPS Growth Rate

Earnings Per Share Growth Rate

EPS is one of the Big 5 Numbers required to determine whether a company is a wonderful business.

Calculate EPS
Cash Flow Rate

Operating Cash Flow Rate

"Operating Cash" Growth Rate

The point of this calculation is to see if the operating cash flow trend is predictable in a business.

Calculate Cash Flow
Equity Growth Rate

Equity Growth Rate

Equity AKA Book Value Per Share

This calculates the rate a company has grown its Equity, or Book Value Per Share.

Calculate Equity
Market Cap Calculator

Market Cap Calculator

Understanding Market Capitalization

Use this calculator to understand the relationship between share price and number of shares outstanding

Calculate Market Cap
Sales Growth Rate

Sales Growth Rate

Sales Growth

This calculator determines the rate at which a company has grown its sales.

Calculate Sales Growth
Sticker Price & MOS

Sticker Price & MOS

Margin of Safety

Use this calculator to determine if you can buy the company safely to make a 15% return over a 10 year period.

Calculate Sticker Price
Payback Time Calculator

Payback Time Calculator

Payback Time to Earnings

This calculator determines the number of years it would take the earnings of the company to cover the cost of the stock price you paid.

Calculate PBT
Retirement Calculator

Retirement Calculator

Retirement Goals & Financial Freedom

This calculator determines your future annual cash needs, annual savings needed and total future savings.

Get Started
Payback Time Spreadsheet

Payback Time Spreadsheet

Download Spreadsheet

This spreadsheet will help you lay out the calculations needed to determine the payback time for a business.

Download Now
Excel Formulas PDF

Excel Formulas PDF

Download PDF

These are the functions behind Phil's calculations; follow the explanations to set up your formulas in an Excel spreadsheet.

Download Now
["Warren_Buffett_BOQ_optin"]
["Warren_Buffett_BOQ_optin"]
[104, 4]
[104, 4]
["Financial_Success_Planner_Optin"]
["Financial_Success_Planner_Optin"]
[94]
[94]