Bits to Gigabits Converter
Enter the data size in bits below to convert it to gigabits.
Convert Bits to Gigabits
Enter a value in bits (b) to convert to gigabits (Gb).
Bit to Gigabit Conversion Table
Table showing various bit measurements converted to gigabits. Click any preset value or arrow to load it into the converter.
| Bits (b) | Gigabits (Gb) |
|---|---|
| 1 b | 1e-9 Gb |
| 10 b | 0.00000001 Gb |
| 100 b | 0.0000001 Gb |
| 1,000 b | 0.000001 Gb |
| 10,000 b | 0.00001 Gb |
| 100,000 b | 0.0001 Gb |
| 1,000,000 b | 0.001 Gb |
| 5,000,000 b | 0.005 Gb |
| 10,000,000 b | 0.01 Gb |
| 25,400,000 b | 0.0254 Gb |
How to Convert Bits to Gigabits
To convert bits to gigabits, multiply the data size by the following conversion ratio: 1e-9 gigabits/bit.
Since one bit is equal to 1e-9 gigabits, you can use this simple formula to convert:
The data size in gigabits is equal to the data size in bits multiplied by 1e-9.
For example, here's how to convert 5 bits to gigabits using the formula above.
How Many Gigabits Are in a Bit?
There are 1e-9 gigabits in a bit, which is why we use this value in the formula above.
Our bit to gigabit calculator automatically converts your data size measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Bits and gigabits are both units used to measure data size. Keep reading to learn more about each unit.
What Is a Bit?
A bit is a unit of data size equal to 1/8 of a byte (0.125 B). Basic binary digit (1/8 of a byte). [1]
The bit is classified as an IEC binary unit of data size. Bits can be abbreviated as b; for example, 1 bit can be written as 1 b.
When working with bits (b) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, bits (b) are widely used across standard data size applications within IEC binary workflows, engineering documentation, and technical data sheets.
What Is a Gigabit?
A gigabit is a unit of data size equal to 125,000,000 bytes (B), the base unit for data size. Equal to 1,000,000,000 bits (125 MB). [2]
The gigabit is classified as a metric and SI-compatible unit of data size. Gigabits can be abbreviated as Gb; for example, 1 gigabit can be written as 1 Gb.
In the metric system, "giga" is the standard SI prefix for billions, or 10⁹. This makes the gigabit (Gb) a convenient decimal multiple of the byte (B).
In practice, gigabits (Gb) are widely used across large-scale industrial, bulk, and macro-level data size specifications within SI metric workflows, engineering documentation, and technical data sheets.
When converting data size between bits (b) and gigabits (Gb), keep full floating-point precision (1 b = 1e-9 Gb; 1 Gb = 1,000,000,000 b) during intermediate calculations and round only the final gigabit figure to match your instrument tolerance.
More Bit & Gigabit Conversions
Need to calculate in the opposite direction? Use our gigabits to bits calculator to switch your starting unit immediately. You can also explore related tools such as converting gigabits to bits, converting bits to bytes, or converting megabytes to gigabytes.
Frequently Asked Questions
References
- [1]NIST / IEC StandardNIST / IEC (IEC 80000-13 Binary Prefixes)·Digital Storage Metrology Standard — Bits (b) to Gigabits (Gb)
- [2]BIPM SpecificationBIPM (SI Decimal Prefixes (k, M, G, T, P))·Unit Specifications: Bit (b) & Gigabit (Gb)
- [3]NIST CUU ReferenceNIST CUU (SI Prefixes & Decimal Multiples)·Conversion Factors & Mathematical Basis (b to Gb)