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Why Does 64GB Only Show 59GB? The Simple, No-Jargon Explanation (and What to Do Next)
Why does 64GB only show 59GB? If you’ve plugged in a “64GB” USB stick, phone, or memory card and your computer says it only has about “59GB”, it’s natural to think you’ve been short-changed. You haven’t.
The label and your device are using two different ways of counting storage: the box uses GB (a decimal measure), while many computers report space using GiB (a binary measure) and may still display it as “GB”.
That mismatch is why 64GB only shows 59GB, and it’s before you even account for normal formatting space and system files. In this guide, you’ll see a clear example you can follow in 30 seconds, learn what numbers are “normal” for common drive sizes, and get a quick way to convert any storage figure so it makes sense instantly.
Free tool Tech Unit Converter
Convert Mbps ↔ MB/s, GiB ↔ GB (and more) — in plain English
(Why Does 64GB Only Show 59GB?)
This tool helps everyday computer users make sense of “internet speed” and “storage size” numbers. Type a number once, choose the unit, and you’ll see friendly conversions right away.
✅ Privacy-first: runs in your browser ⚡ Updates as you type 🔗 Shareable link
1) Enter a value and pick a unit
Use this for broadband/Wi-Fi speeds and download meters.
Mbps is usually what your internet package advertises (bits per second).
MB/s is what downloads often show (bytes per second).
Easy estimate: MB/s ≈ Mbps ÷ 8.
Use this for SSD/USB sizes, phone storage and file sizes.
GB is common on packaging. GiB is common on computers. Same storage, different measuring system.
Use this when you see Mb vs MB. (Tip: b = bit, B = byte.)
Example: choose Mb and enter 80 → about 10 MB.
Show the “extra” results
Want to estimate “how long will this download take?” Try: Download/Upload Time Estimator.
Helpful FAQs
Short answers, with real examples.
What does Mbps mean?
Mbps means megabits per second. It’s a speed measurement (how fast data can move).
What does MB/s mean?
MB/s means megabytes per second. It’s also speed, often shown by downloads.
Why is MB/s smaller than Mbps?
Because 1 byte = 8 bits. So MB/s ≈ Mbps ÷ 8.
Why does 1 TB show as about 931 GiB?
Packaging uses decimal (TB/GB). Computers often show binary (TiB/GiB). Same storage, different units.
Does this tool send my numbers anywhere?
No. It runs in your browser. The share link only stores your input in the URL.
eComputerZ tools are designed to be simple, fast and safe — in plain English.
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