Calculation
Data & Bandwidth
Convert a file size between bits, bytes, MB, GB, TB, and the 1,024-based KiB, MiB, and GiB units. Convert a bandwidth rate such as Mbps to MB/s, or estimate how long a file takes to transfer at a steady rate.
Quick start
- 1
Choose storage, bandwidth, or transfer time
Storage is a file size. Bandwidth is a rate. Transfer time uses both.
- 2
Enter the number
Type the size or the rate you already have.
- 3
Pick the units
Decimal units such as MB and GB use 1,000. Binary units such as MiB and GiB use 1,024.
- 4
Read the table
The chosen result is highlighted, and the same value is listed in the other units.
Features
Storage
Move between MB, GB, TB, bits, and the 1,024-based binary units.
Bandwidth
Turn Mbps into MB/s, or any other bits-per-second rate into bytes per second.
Transfer time
Estimate how long a file takes at a steady rate.
Specifications
- Storage
- bit through PB, plus KiB through PiB
- Rates
- bps, Mbps, MB/s, MiB/s
- Bases
- 1,000 for decimal, 1,024 for binary
- Privacy
- Processed on the toolbox API
Use cases
- Check how many GB a disk allocation is in TB.
- Turn a 100 Mbps link into MB/s.
- Estimate how long a 10 GB file takes at that rate.
Frequently asked questions
Why is 1 MB not 1,024 KB?
MB uses 1,000 KB. MiB uses 1,024 KiB. Both are listed so a disk label and an operating system total can be compared.
Does transfer time include overhead?
No. It divides the size by a steady rate. Real transfers can take longer.