How many Mbps are in 1 GB/s?

1 GB/s = 8,000 Mbps. This follows the SI decimal definition: 1 GB = 10⁹ bytes, 1 MB = 10⁶ bytes, so 1 GB = 1,000 MB. Combined with 1 byte = 8 bits, 1 GB/s = 8,000 Mbps.

What is the difference between Mbps and MB/s?

Mbps (megabits per second, lowercase b) and MB/s or MBps (megabytes per second, uppercase B) differ by a factor of 8. A 100 Mbps connection transfers at most 12.5 MB/s because 100 ÷ 8 = 12.5.

Does this tool use SI (decimal) or IEC (binary) gigabytes?

SI decimal: 1 GB = 1,000,000,000 bytes. The binary equivalent, 1 GiB (gibibyte), equals 1,073,741,824 bytes. Network and storage vendors almost universally quote decimal GB, so this converter uses decimal too.

My NAS is rated at 0.5 GB/s. How many Mbps is that?

Multiply by 8,000: 0.5 GB/s × 8,000 = 4,000 Mbps (4 Gbps). A standard 1 Gbps Ethernet port (1,000 Mbps) would be the bottleneck, not the NAS.

Can I convert Gbps or Kbps as well?

For Gbps, multiply by 1,000 before entering (since 1 Gbps = 1,000 Mbps). For Kbps, divide by 1,000 first. The result panel also shows MB/s and Gbps equivalents for quick reference.

Mbps to GB/s Converter

Name: Mbps to GB/s Converter
Availability: InStock
Author: Nham Vu

Convert megabits per second (Mbps) to gigabytes per second (GB/s) — 1 GB/s = 8,000 Mbps.

Convert Mbps ↔ GB/s

Megabits per second (Mbps)

Gigabytes per second (GB/s)

Result

Enter a value and press Convert.

Common Equivalents

Mbps	GB/s
100	0.0125
1,000	0.125
2,500	0.3125
8,000	1
10,000	1.25
40,000	5
100,000	12.5

Summary

Convert megabits per second (Mbps) to gigabytes per second (GB/s) — 1 GB/s = 8,000 Mbps.

How it works

Enter a value in megabits per second (Mbps) in the input field.
The converter divides by 8,000 to get GB/s, because 1 byte = 8 bits and 1 GB = 1,000 MB.
The result appears instantly in the GB/s output field.
Use the Swap button to reverse the direction and convert GB/s back to Mbps.
Click Copy next to either field to copy the value to your clipboard.

Use cases

Find out how many GB/s a 1,000 Mbps (1 Gbps) broadband line can actually transfer.
Compare SSD sequential read speeds (in GB/s) with Wi-Fi or Ethernet link speed (in Mbps).
Check whether a NAS drive throughput matches your network uplink capacity.
Convert vendor datasheet figures between megabit-rate and byte-rate units.
Estimate backup or replication time when specs mix Mbps and GB/s.
Plan data center interconnect capacity during architecture reviews.

Frequently Asked Questions

Last updated: 2026-07-23 · Reviewed by Nham Vu