NAG Downloads - Fortran Library

Specific download information:

  • Fortran Library, Mark 24
  • For x86-64 systems
  • For Microsoft Windows XP/Vista/7/8
  • Using Intel(R) Fortran Compiler for 64-bit applications Version 13.0 and compatible (including Version 12.1)
  • 64-bit Integer (ILP64)
  • File size  of Fortran Library
    176 MB ; 184903489 bytes
  • File size of Documentation:
    103 MB ; 107851058 bytes
  • NAG Product Code: FLW6I24DDL


The software is provided as self-extracting executable and is available for download.

After downloading the file please run flw6i24ddl_setup.exe to install the NAG Fortran Library.

For further installation instructions, please refer to the Installer's Note and Users' Note .


You can access the documentation via our website or you can download the self-extracting executable. After downloading run setup_fl24_manual.exe to install the Fortran Library Manual.

Licence key

To enable the use of your NAG software you will need a relevant licence key. Instructions for obtaining a licence key are included in the products Installer's Note. Alternatively you can complete the ‘Request a Licence Key’ web form here. If you've already been supplied with a licence key from our Support Desk then you will not need to complete this form/request a key. In the event of difficulty please contact your NAG Technical Support Service.

Trial Request

For more information please fill out the trial request form.

Product Purchasing

The product can be purchased by contacting one of our offices.