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Online Financial Calculators

These calculators are not toys
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Here you'll find dozens of financial calculators that are designed to be easy-to-use, yet flexible enough to meet the needs of financial professionals. We say "these calculators are not toys" because, unlike many online calculators, ours are date sensitive and some support changes to interest rates, payments or investment amounts. All are designed to work well on any device from modern smartphones and tablets to the largest computer monitors. Additionally, all calculators support user selectable international date formats and currency symbols. (Click on $ : MM/DD/YYYY in the lower right corner of any calculator. You'll only need to make the selection once.)

The Ultimate Financial Calculator is the calculator you should be using, for example, if you need to model complex cash flows; perform analytics (PV, ROR, etc.) on a cash flow; or calculate a loan payoff or investment balance as of a specific date. Here are 25 calculation tutorials to get you started. The other calculators give you somewhat less control over dates and rates in exchange for ease and speed of use.

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82 Comments on “Online Calculators”

financial online calculator Join the conversation. Tell me what you think.
  • Mike Ross says:

    Looking to personally finance an amount of $xxxxx.00 for xx# of years with the first four (4) years being at a ZERO interest rate. Then on the 49 month the interest rate will change to “let’s say 5%” thereafter until original amount of loan is paid in full!

    Do you have a calculator that would work and also print a schedule of payments?

    • Karl says:

      Sorry, my previous tutorial recommendation was wrong. Too early in the morning here. You don’t want interest only, you want no interest initially. The calculator will do this too.

      Please see this tutorial:

      4. Adjustable Rate Mortgage or Loan
      ARM with interest rate changes on any date you desire

    • Karl says:

      Thank you for your purchase. The file you downloaded is just like any other file. For example, how would you move a word processing document from your Mac to your Windows PC? Use the same technique. I can’t really give you any details because I don’t know your specific setup.

    • Karl says:

      Yes, it has an "IRR Calculator" which is a time-weighted, annualized rate of return.

      You can also try this online calculator to see if it meets your needs (though the online version currently has a view features that SolveIT!’s calculator does not have).

  • Sally Petersen says:

    I only have a Mac. Because the software is called The Financial Calculator for Windows I’m assuming there’s no point me purchasing it?
    Cheers
    Sally

    • Karl says:

      SolveIT! and C-Value! only run on Windows, that is correct.

      However, there is a 3rd party program for the Mac, called Parallels, that you can install on your Mac and then you can run Windows programs. I’ve never used it (I don’t have a Mac) but I know people who do and they are happy with it.

      If you get that, then you can come right back over here and purchase either of the above. 🙂

  • Rob Sperry says:

    Which calculator do I use if I want to find payment amounts for 36 equal payments when the loan is:

    0% interest for first 6 months
    13.99% interest for next 30 months

    Thanks!

    • Karl says:

      You’ll need to use the ultimate financial calculator. 🙂

      The calculator supports payment and/or rate changes on any date. For your particular problem, you’ll enter 0.0% for the initial interest rate. Then you’ll have 4 rows in the bottom part of the calculator. A row for the loan amount followed by a payment row with 6 "Unknown" payment amounts, a rate change row (to 13.99%) followed by a row with 30 more "Unknown" payment amounts.

  • Sydney says:

    looking to use your wp-plugins. where is the data stored when someone uses the calculator placed on a page on my site? is it stored in a database? how many people can use the calculator at once on my page. (i know these questions may sound stupid, but i am not a techie so wondering how it works)

    • Karl says:

      Thank you for considering using my plugins.

      1. The only data that might be stored would be the user’s currency and date selection. That information is stored in cookies where are always on the user’s computer.

      2. The plugins themselves have no limits on the number of users that can use them at one time. If a user can connect to your site, then they’ll be able to use the calculators.

  • Ginger Mann says:

    My personal loan was for 15 years starting in April 2003 and always paid on time. The first year after my husband passed in late 2010 was a struggle to make the payments. In 2011 I had 3 late payments due to the dates I received my SS checks. It took the bank almost 6 months to process a due date change!
    My loan maturity date was to be 04/05/2018 but when I went to print out my final payment I was in shock to see “Balance owed $10,209.85 due by 04/05/2018”!!! My calls are a waste of time, I know there is an error somewhere but have been unable to find a calculator that will:
    1) Allow a date change 9 years into my loan.
    2) Calculate late payment interest accrued on the late payment dates forward.

    Is there such a calculator available? The more this is delayed the more the interest will add up. My loan agreement states that they will charge a rate of 18% per year on the unpaid balance!!!
    Please let me know if any of your calculators can do these type of calculations. Thank you, GM

    • Karl says:

      The calculator you can use is this financial calculator. It allows you to record each payment (or series of payments as they are made.

      If you try it, scroll down the page to the tutorial section. Read tutorial #1 to get started, and then tutorial #25 which is about getting the exact balance of a loan.

  • Mark E says:

    If I have two funds, A & B at annual ROR of 10% & 15%, do I just average them to get a total ROR for all my funds, i.e. 12.5%?

    • Karl says:

      No, that won’t work. To understand why, think of it this way. If one fund started with $10,000 and it made $10,000 in a year (ROR = 100%) and another fund started with $100,000 and it didn’t make anything i.e. it neither gain or loss any money, you could not say the ROR is 50%

      To know the ROR for both funds combined you can use one of two calculators:

  • Mark E says:

    Thank you, Karl, for your response.

    I haven’t looked at the XIRR function in Excel or the the two Rate of Return calculators you suggested yet so maybe my new questions will be answered there.

    I’m trying to decide in which funds in the Thrift Savings Plan I should invest. I want to diversify my investments over different risk funds but want a minimum overall ROR of 8-10%. The following link at the TSP website shows the monthly ROR for each fund and the ROR for the last 12 months.

    https://www.tsp.gov/InvestmentFunds/FundPerformance/monthlyReturns.html

    I’m guessing I can use the ROI calculator that you suggested. Is this correct?

    Thank you,
    Mark E.

    • Karl says:

      Ok, I think I understand. If you want to invest the same about in each fund, then you can average the different RORs and the average will be close enough to tell you if you’re in that 8-10% range.

      On the other hand, if you plan to invest different amounts then, as mentioned before, the average won’t work In that case you can/should use the ROI calculator. If you want to know the average ROI for the year, then the calculator assumes you won’t be making any withdrawal or additions to the fund during the year.

      You’ll need to add the amount invested in each fund and enter that in the starting amount. Then calculate the final amount using each fund’s return rate and sum those up and enter them into the ROI calculator as the final amount.

      To calculate the final amount after a year, you can use this Reply

  • Donna Barr says:

    Hi,

    Do you have an insurance needs calculator that will work for wordpress? (Either a plugin or html)

    I am building a website for a financial advisor and they want to offer calculators for Retirement Savings and, How Much Insurance Do I Need?

    Thanks in advance

    Donna Barr

  • Daron says:

    Hi
    What calculator can I use to measure if I should invest extra $$$.$$ per month or put it towards a loan as an extra payment. Just wanted to see if by investing it, I earned more than paying the loan off early. The investment would be an RRSP

    • Karl says:

      There are several ways to do this calculation, but not with one calculator. First, you can use the extra payment calculator to see how much interest you’ll save with the extra payments and when the loan will be paid off. Then you can use the savings calculator to calculate the final value of the extra payment if you were to invest the amount. Let say, for example, you find out the loan would be paid off in 7 more years with the extra payments. Calculate the total savings after 7 years of periodic investments equal to the amount of the extra payments.

      If this does not work for you, there are other calculators on this site with other features for calculating investment returns or amount saved on a loan due to extra payments.

    • Karl says:

      Hi Daron,

      Just thought you might like to know I implemented your suggestion and I released an update to the Extra Payment Calculator that will easily show the user what’s the difference between making the extra loan payments vs. investing the same amount.

      I would be interested to know what you think.

  • daron says:

    Hi Karl
    I did end up finding one online under www.debt101.ca. They use a comparison of a student loan vs investment of the extra payment, but this does compute it all with just one set of entries. Tells you what interest you save, when the loan will be paid off and also how money your investment would earn.

  • Doug Warren says:

    I am interested in possibly using/licensing your retirement planning calculators in WordPress based websites we provide to our financial advisor customers. Is this something you accommodate? If so, can you tell me costs?

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