How many GB/s is 1 Gbps?

1 Gbps equals 0.125 GB/s (gigabytes per second). Divide the Gbps value by 8 because there are 8 bits in every byte.

What is the formula to convert Gbps to GB/s?

GB/s = Gbps ÷ 8. To reverse it: Gbps = GB/s × 8.

Does this use decimal (1,000) or binary (1,024) prefixes?

The Gbps side uses the SI decimal prefix (10^9 bits per second), which is the universal standard for network speeds. The GB side likewise uses decimal gigabytes (10^9 bytes). If you need GiB/s (gibibytes), divide the Gbps value by 8.589934592 instead.

Why is 1 Gbps only 0.125 GB/s?

Because "giga" refers to the same scale on both sides, the only difference is bits vs. bytes. One byte is 8 bits, so a 1 Gbps link moves 1 ÷ 8 = 0.125 gigabytes of data every second.

How fast is a 10 Gbps link in GB/s?

10 Gbps ÷ 8 = 1.25 GB/s. A 10 Gbps link can transfer a 1.25 GB file in about one second under ideal conditions.

When would I need to convert Gbps to GB/s?

Common scenarios include matching network link capacity (Gbps) against storage throughput (GB/s), estimating transfer times for large datasets, and reading mixed-unit specifications in SAN, NAS, and hyperconverged infrastructure documentation.

Gbps to GB/s Converter

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

Enter any Gbps value and instantly see the equivalent in GB/s, plus the formula and a reference table of common data transfer speeds.

Enter Value

Gigabits per second (Gbps)

Gigabytes per second (GB/s)

Formula: GB/s = Gbps ÷ 8 • Gbps = GB/s × 8

Result

Enter a value on the left to see the result.

Common Speed Reference

Connection / Interface	Gbps	GB/s
Gigabit Ethernet (1 GbE)	1	0.125
2.5 GbE NIC / switch port	2.5	0.3125
USB 3.2 Gen 2 (10 Gbps)	10	1.25
Thunderbolt 3 / 4	40	5
100 GbE datacenter link	100	12.5
PCIe 4.0 x16 (GPU slot)	256	32
400 GbE spine link	400	50

Summary

Enter any Gbps value and instantly see the equivalent in GB/s, plus the formula and a reference table of common data transfer speeds.

How it works

Enter the number of gigabits per second (Gbps) in the input field.
The converter divides your value by 8 to get the equivalent in GB/s.
The result updates instantly as you type.
Copy the result with one click.
Use the reference table to compare your result against common connection and storage speeds.

Use cases

Find out how many GB/s a 10 Gbps NIC can actually transfer per second.
Compare a storage array rated in GB/s against a network link rated in Gbps.
Estimate backup window: divide dataset size (GB) by throughput (GB/s) from a Gbps link.
Translate ISP or datacenter link speeds from Gbps to GB/s for capacity planning.
Check whether a 100 Gbps backbone can sustain a given GB/s workload.
Convert Gbps interface specs to GB/s for SAN or NVMe-oF documentation.

Frequently Asked Questions

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