Terabits (Tb) to Gigabits (Gb) Converter
Enter your Terabits (Tb) value to convert to Gigabits (Gb). 1 Tb = 1,000 Gb, calculated across both decimal (SI) and binary (IEC) standards.
Convert Terabits to Gigabits
Do you want to convert gigabits to terabits?
How to Convert Terabits to Gigabits
To convert terabits to gigabits, multiply by 1,000. This gives you the equivalent storage size in the target unit. Check out our calculate Gb to Tb.
Tb: A terabit is 1,000 gigabits or 10^12 bits. Used for backbone network and data center connections. You might also need: how many Zettabytes in a Tb.
Gb: A gigabit is 1,000 megabits or 1,000,000,000 bits. Used for high-speed network connections. Use our how many Gb in Kilobits.
1 Tb = 1,000 Gb (using SI decimal standard) — which means there are 1,000gigabits in every terabit.
Tb to Gb Conversion Formula
// Convert Tb to Gb
Gb = Tb × 1,000
// Reverse: Convert Gb to Tb
Tb = Gb × 0.001
Tb to Gb Conversion Examples
100 Tb = 100,000 Gb
256 Tb = 256,000 Gb
500 Tb = 500,000 Gb
1,000 Tb = 1,000,000 Gb
2,048 Tb = 2,048,000 Gb
What Is a Terabit?
A terabit is 1,000 gigabits or 10^12 bits. Used for backbone network and data center connections. Related: Exabytes to Gib.
The terabit is a SI decimal bit unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. You might also need: convert Pbps to Gigabytes Per Second.
Common uses: Data center interconnects, backbone networks, high-capacity optical links See also: Terabits to Kib calculator.
1 Tb = 1 × 10¹² bits = 125 × 10⁹ bytes.
The terabit can be abbreviated as Tb; for example, 1 terabit can be written as 1 Tb.
What Is a Gigabit?
A gigabit is 1,000 megabits or 1,000,000,000 bits. Used for high-speed network connections. Learn more: Yb to Gigabits converter.
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. Check out our Zebibytes to Megabits conversion.
Common uses: Fiber internet speeds, enterprise networking, 10GbE connections You might also need: convert Zebibytes Per Second to Exbibits Per Second.
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.
Terabit to Gigabit Conversion Table
The table below shows various terabit measurements converted to gigabits.
| Terabits | Gigabits |
|---|---|
| 1 Tb | 1,000 Gb |
| 2 Tb | 2,000 Gb |
| 5 Tb | 5,000 Gb |
| 10 Tb | 10,000 Gb |
| 25 Tb | 25,000 Gb |
| 50 Tb | 50,000 Gb |
| 100 Tb | 100,000 Gb |
| 250 Tb | 250,000 Gb |
| 500 Tb | 500,000 Gb |
| 1,000 Tb | 1,000,000 Gb |
💡 Storage Engineer Tip
For accurate capacity planning, always verify whether specifications use SI decimal (base 1000) or binary (base 1024) units. The difference becomes significant at larger scales.
— Subash Geetha Krishnan, 15+ years in enterprise storage
When to Convert Tb to Gb
Common scenario: Planning storage allocation, comparing specifications, or converting between terabit and gigabit for capacity planning. You might also need: Terabits to Mebibits calculator.
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. Learn more: Zib to Gb conversion rate.