File Transfer Time Calculator

Estimate upload and download time for large files. Built by TrunkTransfer, client delivery for branding & creative studios.

Know how long a file transfer will actually take, before you start it. Transfer Calculator estimates upload and download time for any file size at any connection speed. Enter your file size and connection speed (or pick a common preset like fiber or home Wi-Fi), and get a live estimate in seconds, minutes, or hours. A real-world overhead toggle accounts for the gap between advertised and actual throughput, so the number you see is the number you'll actually experience. Built for branding and creative studios that move large design files, video, and client deliverables daily. No signup, no tracking, no account required. Your connection speed is saved locally so it's ready next time you open the extension. From the team at TrunkTransfer TrunkTransfer handles client delivery for branding and creative studios: instant shareable links for large files, no size limits, no clunky client portals. Studios on the Starter plan ($9/mo) can send from their own custom domain, so links show up as yourstudio.com instead of a third-party URL. Learn more at trunktransfer.com