Download [upd] - Fortran 77 Compiler For Windows 10 64-bit Free

For Windows 10 (64-bit), you have two primary free options for compiling Fortran 77: GFortran (modern, flexible, and command-line focused) and Silverfrost FTN95 (includes a graphical IDE and is specifically optimized for Windows).  Option 1: GFortran (via TDM-GCC) 

Modern, free Fortran compilers are fully backward compatible and will compile your Fortran 77 code (usually files ending in .f or .for) flawlessly on Windows 10 64-bit. 🚀 Recommended Free Compilers for Windows 10 (64-bit) 1. GNU Fortran (gfortran) — Highly Recommended fortran 77 compiler for windows 10 64-bit free download

Part 3: Step-by-Step – Downloading & Installing GFortran (MinGW-w64)

We will focus on the most practical, modern, and free solution: GFortran via MinGW-w64. Follow these steps carefully. For Windows 10 (64-bit), you have two primary

hello.exe

Add C:\mingw64\bin to PATH.

There are several Fortran 77 compilers available for Windows 10 64-bit, both free and commercial. Here are a few options: Add C:\mingw64\bin to PATH

gfortran -static -std=f77 -o myprogram.exe mycode.f

Run installer

2) How to get gfortran on Windows 10 x64 (3 recommended methods)

A. MSYS2 / MinGW-w64 (native Windows)