Free Data Transfer Rate Converter
Convert between bps, Kbps, Mbps, Gbps, Tbps, Bytes/s, KB/s, MB/s, and GB/s. Instant bandwidth and data transfer speed conversion.
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100 Mbps =
Formula
1 byte = 8 bits | Mbps ÷ 8 = MB/s | Your ISP speed (Mbps) ÷ 8 = max download speed (MB/s)Understanding Data Transfer Rates
Data transfer rates measure how fast data moves between devices or across a network. Internet speeds are advertised in bits per second (Mbps), while file download speeds are shown in bytes per second (MB/s). The key conversion: divide bits by 8 to get bytes.
Bit-Based Units (Network Speeds)
- bps — bits per second. The base unit for data transfer.
- Kbps — kilobits per second (1,000 bps). Old dial-up modems were 56 Kbps.
- Mbps — megabits per second (1,000,000 bps). Standard for home internet speeds.
- Gbps — gigabits per second (1,000,000,000 bps). Fiber optic and enterprise connections.
- Tbps — terabits per second. Used for internet backbone and data center links.
Byte-Based Units (File Transfer Speeds)
- Bytes/s — bytes per second. The base byte transfer unit.
- KB/s — kilobytes per second. Old downloads often showed this.
- MB/s — megabytes per second. What your browser shows during downloads.
- GB/s — gigabytes per second. NVMe SSDs and high-speed storage interfaces.
Common Speed References
- USB 2.0: 480 Mbps (60 MB/s)
- USB 3.0: 5 Gbps (625 MB/s)
- Wi-Fi 6: up to 9.6 Gbps (1.2 GB/s theoretical)
- Ethernet: 1 Gbps (125 MB/s) standard, 10 Gbps enterprise
- 5G cellular: 1-10 Gbps theoretical, ~100-300 Mbps typical
Frequently Asked Questions
How do I convert Mbps to MB/s?
Divide Mbps by 8 to get MB/s. For example, 100 Mbps ÷ 8 = 12.5 MB/s. This is why a '100 Mbps' internet plan downloads files at about 12.5 MB per second at best.
What internet speed do I need for streaming?
Netflix recommends: 3 Mbps for SD, 5 Mbps for HD, 15 Mbps for 4K Ultra HD. For multiple simultaneous streams, multiply accordingly. Gaming needs 25+ Mbps with low latency.
What is the difference between Mbps and MBps?
Mbps = megabits per second (used for internet speeds). MBps or MB/s = megabytes per second (used for file downloads). There are 8 bits in a byte, so 100 Mbps = 12.5 MB/s.
How long to download a file at a given speed?
Divide file size (in MB) by speed (in MB/s). A 1 GB file on 100 Mbps: 1,000 MB ÷ 12.5 MB/s = 80 seconds. Real-world speeds are typically 60-80% of advertised maximums.
What is Gbps used for?
Gbps (gigabits per second) measures high-speed connections like fiber optic internet, server backbones, and Thunderbolt/USB4 connections. 1 Gbps = 1,000 Mbps = 125 MB/s.