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Order Calc for Windows

Get the latest version of Calc for Windows with all the new features and improvements:

Compatible with Windows 7 Works with Windows Vista
  • Instantly download for Windows. Latest Version 5.6 works better than ever (see the Version 5.6 help files online).
  • Compatible with the latest version of Windows 8 and Verified for earlier versions of Windows.
  • Better RPN logic and visible stack

  • New modes for fractions and feet/inches
  • IP address calculation mode

  • Better financial functions
  • New interactive financial rates dialog

Example customised calculator -  orange theme
  • More data than ever, including new particle physics  data
  • Updated matrix and complex modes

All this for only US $11.85! (plus local taxes where applicable)

Ordering is easy. You can order securely online with your credit card using SWReg. You will receive a link by email from SWReg to download the software. To go to the SWReg secure website to place your order, click on the link below.

Purchase by credit card using SWReg secure ordering servicePurchase by credit card using SWReg secure ordering serviceOrder by telephone using SWReg secure ordering service

SWReg will also accept credit card orders by telephone, fax, wire transfer or purchase order (additional processing fees may apply). The order telephone numbers are for SWReg only; you cannot reach Flow Simulation Ltd. at these numbers.

Background images shown in the screenshots are included on the CD but not in the download.

Money-back Guarantee: If you are not completely satisfied with your purchase, simply return the software to us within two weeks, and we'll be happy to provide a full refund.

Order by mail

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