From here, you are not far from having your copy of a Pralana Retirement Calculator! Full-price purchases of Pralana Gold made on or after October 1 will entitle you to a free upgrade to the 2022 model when it’s released in January!

 Just click on the Get Now button


  • Pralana Bronze 2021

    $0.00
    Get Now
  • Pralana Gold 2021

    $99.00
    Get Now

Our calculators are downloadable and operate on any Windows or Mac computer in conjunction with Microsoft Excel. Windows platforms need Excel 2007 or later and Mac platforms need at least O/S 10.5 and Excel 2011 for Macs. 

Windows Excel 2007 and 2010 users and Firefox users, please see the notes at the bottom of this page.


A Pralana Gold license entitles you to free support via e-mail and all updates. Your account will be established during the checkout process and will enable you to download a copy for your personal use on a second computer, gain access to all maintenance updates, and to submit new topics and engage in exchanges with other users via the Pralana Retirement Calculator Forum. 

Checkout is quick and secure and Pralana Consulting LLC never has access to your private information. You’ll be able to use PayPal or your credit card. Just click the GET NOW button above to initiate processing, and you’ll be downloading PRC to your computer within a couple of minutes! Your name and e-mail information will never be shared with any other entity. You will be invited to receive the Pralana Newsletter which is sent occasionally to provide you with information on product updates and tips on getting the most out of your calculator. Even if you do elect to sign up, you can always unsubscribe at any time.

We recommend use of the Microsoft Edge, Google Chrome or Safari browsers for downloading Pralana files; Internet Explorer and Firefox users should refer to the notes at the bottom of this page.

* Note for Excel 2010 Users: Your Excel configuration needs to include Microsoft Service Pack 2 (SP2). Without this, Excel may tell you that the PRC file is corrupted.

* Note 1 for Excel 2007 Users: Your Excel configuration needs to include Microsoft Service Pack 3 (SP3). Without this, Excel may tell you that the PRC file is corrupted.

* Note 2 for Excel 2007 Users: The digital signature is not recognized by Excel 2007 and will be reported as an invalid signature. This is due to the fact that Excel 2007 has not been maintained by Microsoft since 2012 and is no longer compatible with the newer security software technology used to produce the Pralana Consulting LLC digital signature. The workaround is to create a new folder on your Windows system into which you place the PRC file. Then, via Excel’s Trust Center, you specify this folder as a Trusted Location.

* Note for Internet Explorer 11 users on Windows 10 machines: PRC downloads may fail to work with this configuration. The workaround is as follows: On the IE11 page, go to Tools (the cog in the upper right corner), then Safety, then “Turn Off Windows Defender SmartScreen”. You can then turn this back to the “On” state when the download is completed.

* Note for Firefox users: Some versions of Firefox append a .xlsx extension to Pralana’s .xlsm files which Excel will reject. If you see this occurring following a download, you will need to manually delete the .xlsx extension from the filename prior to opening.