Gigabits (Gb) to Bytes (B) Converter
Enter your Gigabits (Gb) value to convert to Bytes (B). 1 Gb = 125,000,000 B, calculated across both decimal (SI) and binary (IEC) standards.
Convert Gigabits to Bytes
Do you want to convert bytes to gigabits?
How to Convert Gigabits to Bytes
To convert gigabits to bytes, divide by 8 then adjust for scale. Since 1 byte = 8 bits, this conversion translates bit-based measurements to the byte-based units used for storage capacity. Try the B to Gb converter.
Gb measures data in bits—commonly used for memory addressing and low-level data specifications. Related: Gb to Mb.
B measures data in bytes—the standard unit for file sizes, storage capacity, and what you see in file explorers. Related: Zebibytes in Bytes.
1 Gb = 125,000,000 B (using SI decimal standard) — which means there are 125,000,000bytes in every gigabit.
Gb to B Conversion Formula
// Convert Gb to B
B = Gb × 125,000,000
// Reverse: Convert B to Gb
Gb = B × 0.000000008
Gb to B Conversion Examples
100 Gb = 12,500,000,000 B
256 Gb = 32,000,000,000 B
500 Gb = 62,500,000,000 B
1,000 Gb = 125,000,000,000 B
2,048 Gb = 256,000,000,000 B
What Is a Gigabit?
A gigabit is 1,000 megabits or 1,000,000,000 bits. Used for high-speed network connections. You might also need: converting Kilobytes to Kilobits.
The gigabit is a SI decimal bit unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. Use our PB/s to KiB/s conversion rate.
Common uses: Fiber internet speeds, enterprise networking, 10GbE connections See also: calculate Gb to EiB.
1 Gb = 1 × 10⁹ bits = 125 × 10⁶ bytes.
The gigabit can be abbreviated as Gb; for example, 1 gigabit can be written as 1 Gb.
What Is a Byte?
A byte consists of 8 bits and is the standard unit for measuring digital storage. One byte can represent 256 different values (0-255). Use our how many Bytes in a PiB.
The byte is a fundamental unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. See also: how many Eib in Gibibytes.
Common uses: File sizes, memory addressing, character encoding (ASCII, UTF-8) Check out our Exabytes Per Second to GiB/s.
1 B = 8 bits = 1 bytes.
The byte can be abbreviated as B; for example, 1 byte can be written as 1 B.
Gigabit to Byte Conversion Table
The table below shows various gigabit measurements converted to bytes.
| Gigabits | Bytes |
|---|---|
| 1 Gb | 125,000,000 B |
| 2 Gb | 250,000,000 B |
| 5 Gb | 625,000,000 B |
| 10 Gb | 1,250,000,000 B |
| 25 Gb | 3,125,000,000 B |
| 50 Gb | 6,250,000,000 B |
| 100 Gb | 12,500,000,000 B |
| 250 Gb | 31,250,000,000 B |
| 500 Gb | 62,500,000,000 B |
| 1,000 Gb | 125,000,000,000 B |
💡 Storage Engineer Tip
Remember: 8 bits = 1 byte. When your ISP advertises "100 Mbps," divide by 8 to get your actual download speed in MB/s (approximately 12.5 MB/s theoretical maximum).
— Subash Geetha Krishnan, 15+ years in enterprise storage
When to Convert Gb to B
Common scenario: Converting your internet speed (Mbps) to actual download rate in MB/s, or calculating real-world transfer capabilities. Learn more: convert Gb to Zettabytes.
Other situations include storage planning for calculating how much data fits in a given capacity, file management for understanding sizes across different scales, cost estimation for budgeting cloud storage, and backup planning for determining media requirements. You might also need: EiB to B calculator.