Download, Upload and Transfer Time Calculators
Transfer time is file size divided by speed, with the awkward parts hidden in the units: ISPs quote bits, files are counted in bytes, and no connection ever runs at its headline rate. These calculators keep the maths honest — showing the clean line-rate figure, a realistic 90% estimate, and how much data moves per hour. Use download time for game updates and large files, upload time for video and cloud backups (home upload is 5–20× slower than download), the drive copy calculator for USB, SSD and network transfers, and the streaming data usage page when a data cap is at stake.
Download Time Calculator
How long a download takes at your real connection speed
Upload Time Calculator
Upload estimates for video, backups and cloud sync on asymmetric plans
Data Transfer Calculator
Copy times between drives, cards, SSDs and network shares
Streaming Data Usage Calculator
How much data streaming uses per hour at each quality level
Guides
Why a 1 TB Drive Shows 931 GB
The decimal-versus-binary answer in plain language
MB vs MiB: Binary and Decimal Units
What the IEC names mean and when each one applies
Mbps vs MB/s: The 8× Trap
Why your downloads look slower than your plan promises
How Many GB in a TB
1,000 or 1,024 — and what that means for real drives
How Much Storage Do I Need?
Sizing phones, laptops, drives and cloud tiers by use case
What Is Video Bitrate?
Bitrate, quality and file size without the hand-waving
What Internet Speed Do I Need?
Speeds for streaming, calls, gaming and large downloads