Physics & Engineering
Bandwidth / Download Time
Size / Mbps (8 bits/byte).
Educational estimates only. Not medical, legal, tax, or financial advice.
Guide: Bandwidth / Download Time
What it does
Converts MB to bits and divides by link rate.
How to use it
Enter file size (MB) and speed (Mbps).
Formula
Seconds ≈ (MB × 8×10⁶ bits) ÷ (Mbps × 10⁶).
Example
800 MB at 100 Mbps → about 64 seconds idealized.
FAQs
Why slower in real life?
Protocol overhead, latency, Wi‑Fi contention, and disk speed matter.
MB vs MiB?
Some systems use binary megabytes; clarify file size basis if results look off.
Upload vs download?
Symmetric links differ; enter the speed that matches your direction.