Kilobit per second to Gigabit per second Converter
Convert kilobits per second to gigabits per second with our free online data transfer converter.
Quick Answer
1 Kilobit per second = 0.000001 gigabits per second
Formula: Kilobit per second × conversion factor = Gigabit per second
Use the calculator below for instant, accurate conversions.
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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.
Kilobit per second to Gigabit per second Calculator
How to Use the Kilobit per second to Gigabit per second Calculator:
- Enter the value you want to convert in the 'From' field (Kilobit per second).
- The converted value in Gigabit per second will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Data Transfer category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Kilobit per second to Gigabit per second: Step-by-Step Guide
Converting Kilobit per second to Gigabit per second involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Kilobit per second = 1.0000e-6 gigabits per secondExample Calculation:
Convert 1000 kilobits per second: 1000 × 1.0000e-6 = 0.001 gigabits per second
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These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
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View all Data Transfer conversions →What is a Kilobit per second and a Gigabit per second?
A kilobit per second (kbps or kbit/s) is a unit of data transfer rate equal to 1,000 bits per second. It uses the standard SI prefix "kilo-" (k), which represents a factor of 103 or one thousand.
A gigabit per second (Gbps or Gbit/s) is a unit of data transfer rate equal to 1,000,000,000 bits per second, 1,000 megabits per second, or 1 million kilobits per second. It uses the standard SI prefix "giga-" (G), which represents a factor of 109 or one billion.
Note: The Kilobit per second is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Gigabit per second belongs to the imperial/US customary system.
History of the Kilobit per second and Gigabit per second
: The Evolution of kbps
The kilobit per second emerged as a standard measurement unit during the telecommunications revolution:
- 1960s: Telephone networks first quantified digital transmission speeds in bits per second
- 1970s-1980s: Data terminal speeds (300 bps, 1,200 bps, 2,400 bps) gave way to kilobit-scale measurements
- 1990s Dial-Up Era: 56 kbps modems represented the peak of consumer dial-up technology
- A 56 kbps modem could download 56,000 bits per second
- Practical download speed: ~7 KB/s (about 1 MB per 2.5 minutes)
- This speed dominated the Internet from 1995-2005
- 2000s Broadband Transition: Internet speeds jumped from kilobits to megabits
- ADSL: 512 kbps (entry level) to 2,000 kbps (then called "high speed")
- Cable modem: 1,000-3,000 kbps
- Kbps became less relevant for consumer internet, but remained for specialized applications
- 2010s-Present: Kbps survived as the measurement for:
- Embedded systems and IoT
- Low-bandwidth medical devices
- Legacy industrial equipment
- Audio streaming bitrates
Gigabit per second speeds became prominent with the development of Gigabit Ethernet standards (like 1000BASE-T) in the late 1990s and early 2000s, significantly increasing local network speeds. The proliferation of fiber optic internet connections (FTTH - Fiber to the Home) further established Gbps as a common measure for high-speed internet access for consumers and businesses.
Evolution of Gbps in Technology
- 1990s: Gigabit Ethernet development; theoretically available but extremely expensive
- Early 2000s: Gigabit routers and switches become standard in enterprise networks
- Mid-2000s: 1 Gbps internet starts appearing in Seoul, Tokyo, other tech-forward cities
- 2010s: Gigabit internet becomes common in developed countries; 10 Gbps emerging in data centers
- 2020s: 1 Gbps residential internet becoming standard in urban areas; 10+ Gbps available for businesses
- Future: 400 Gbps and 800 Gbps standardized for data center interconnects
Common Uses and Applications: kilobits per second vs gigabits per second
Explore the typical applications for both Kilobit per second (imperial/US) and Gigabit per second (imperial/US) to understand their common contexts.
Common Uses for kilobits per second
Kilobits per second (kbps) is frequently used to measure the speed of data communication links:
- Audio Streaming Bitrates: The most common modern use of kbps
- Telephone-quality speech: 8-16 kbps (enough for intelligibility)
- AM radio equivalent: 64 kbps
- MP3 (low quality): 128 kbps
- MP3 (standard): 192 kbps
- MP3 (high quality): 256-320 kbps
- AAC (Apple Music): 128-256 kbps
- Lossless (FLAC): 500-1,200 kbps
- Uncompressed CD audio: 1,411 kbps (44.1 kHz, 16-bit stereo)
- Internet Connection Speeds: Historically standard, still used for:
- ISDN connections: 128 kbps (two 64 kbps channels)
- Early broadband: 256-512 kbps (entry level)
- Mobile 3G networks: 100-2,000 kbps
- Satellite internet (old): 400-512 kbps
- Voice Communication: VoIP and telephony
- Minimum for intelligible voice: 8 kbps (heavily compressed, military speech)
- Wideband VoIP: 16-20 kbps
- Standard VoIP call: 64 kbps (G.711 codec)
- High-quality VoIP: 128 kbps
- Video Streams (Low Resolution):
- Extremely low-quality mobile video: 100-300 kbps
- Security camera feed (motion JPEG): 200-500 kbps
When to Use gigabits per second
Gigabits per second (Gbps) is used to measure very high data transfer rates:
- High-Speed Internet (Consumer): Fiber optic internet plans commonly offer speeds of 1 Gbps (gigabit) or higher
- Provides ~125 MB/s download speeds
- Fast enough to download a 4K movie in under a minute
- Local Area Network (LAN) Backbones: Used for high-traffic links within corporate networks or data centers
- Data Center Networking: Standard for server-to-server communication and connections to storage area networks (SANs)
- Network Switches and Routers: High-performance network hardware often has ports rated in Gbps
- Entry-level managed switches: 1 Gbps per port
- High-end data center switches: 40-400 Gbps per port
- High-Definition Video Transfer: Transferring large video files or streaming multiple high-resolution video streams simultaneously
- Cloud Computing: Inter-datacenter links often exceed 100 Gbps
Additional Unit Information
About Kilobit per second (Kbps)
How many bits per second (bps) are in a kilobit per second (kbps)?
There are exactly 1,000 bits per second (bps) in 1 kilobit per second (kbps). This follows the standard SI definition of the prefix 'kilo-'.
What is the difference between kbps and Mbps?
Mbps (Megabit per second) is a larger unit of data transfer rate.
- 1 kbps = 1,000 bps
- 1 Mbps = 1,000 kbps = 1,000,000 bps Therefore, 1 Mbps is 1,000 times faster than 1 kbps. Modern internet speeds are typically measured in Mbps or even Gbps (Gigabit per second).
What is the difference between kbps (kilobits per second) and KB/s (Kilobytes per second)?
These units measure different things, although both relate to data speed:
- kbps (kilobits per second): Measures the rate of transfer in bits. Used commonly for network speeds and streaming bitrates.
- KB/s (Kilobytes per second): Measures the rate of transfer in bytes. Often used for file download speeds shown in browsers or download managers.
Since 1 byte = 8 bits: 1 KB/s = 8 kbps Therefore, a speed expressed in KB/s is 8 times faster than the same number expressed in kbps. For example, a download speed of 100 KB/s is equivalent to 800 kbps.
Is kbps based on 1000 or 1024 bits?
Kilobits per second (kbps) is always based on the decimal prefix 'kilo-', meaning 1000 bits per second. Unlike the historical ambiguity with kilobytes (KB) in data storage (which sometimes meant 1024 bytes, correctly KiB), data transfer rates like kbps, Mbps, and Gbps consistently use the standard SI decimal prefixes (powers of 1000).
About Gigabit per second (Gbps)
How many bits per second (bps) are in a gigabit per second (Gbps)?
There are exactly 1,000,000,000 bits per second (bps) in 1 gigabit per second (Gbps). This follows the standard SI definition of the prefix 'giga-'.
How many megabits per second (Mbps) are in a gigabit per second (Gbps)?
There are exactly 1,000 megabits per second (Mbps) in 1 gigabit per second (Gbps).
What is the difference between Gbps (gigabits per second) and GB/s (Gigabytes per second)?
These units measure data transfer rate differently:
- Gbps (gigabits per second): Measures the rate in bits. Standard for advertising network speeds, especially high-speed internet and network hardware capabilities.
- GB/s (Gigabytes per second): Measures the rate in bytes. Often used to describe the throughput of very high-speed interfaces like PCIe buses, fast SSDs, or high-performance computing interconnects.
Since 1 byte = 8 bits: 1 GB/s = 8 Gbps Therefore, a speed expressed in GB/s is 8 times faster than the same number expressed in Gbps. For example, a network speed of 10 Gbps has a theoretical maximum transfer rate of 1.25 GB/s (10 / 8 = 1.25).
Is Gbps related to Gibibits (Gib)?
While both use the 'giga'/'gibi' scale, they differ significantly:
- Gbps (Gigabit per second): A rate based on decimal gigabits (1 Gb = 109 bits = 1,000,000,000 bits). Used for data transfer speeds.
- Gib (Gibibit): A unit of data storage based on binary prefixes (1 Gib = 230 bits = 1,073,741,824 bits). Used for precise memory/storage measurement. A "Gibibit per second" (Gibps) is not a standard unit for data transfer rates, which consistently use decimal prefixes.
Is Gbps based on 1,000,000,000 or 1,073,741,824 bits?
Gigabits per second (Gbps) is always based on the decimal prefix 'giga-', meaning 1,000,000,000 bits per second. Data transfer rates (bps, kbps, Mbps, Gbps, Tbps) consistently use the standard SI decimal prefixes (powers of 1000). The binary multiple (230 = 1,073,741,824) relates to data storage units like the Gibibyte (GiB) or Gibibit (Gib).
Conversion Table: Kilobit per second to Gigabit per second
| Kilobit per second (Kbps) | Gigabit per second (Gbps) |
|---|---|
| 0.5 | 0 |
| 1 | 0 |
| 1.5 | 0 |
| 2 | 0 |
| 5 | 0 |
| 10 | 0 |
| 25 | 0 |
| 50 | 0 |
| 100 | 0 |
| 250 | 0 |
| 500 | 0.001 |
| 1,000 | 0.001 |
People Also Ask
How do I convert Kilobit per second to Gigabit per second?
To convert Kilobit per second to Gigabit per second, enter the value in Kilobit per second in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our data transfer converter page to convert between other units in this category.
Learn more →What is the conversion factor from Kilobit per second to Gigabit per second?
The conversion factor depends on the specific relationship between Kilobit per second and Gigabit per second. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.
Can I convert Gigabit per second back to Kilobit per second?
Yes! You can easily convert Gigabit per second back to Kilobit per second by using the swap button (⇌) in the calculator above, or by visiting our Gigabit per second to Kilobit per second converter page. You can also explore other data transfer conversions on our category page.
Learn more →What are common uses for Kilobit per second and Gigabit per second?
Kilobit per second and Gigabit per second are both standard units used in data transfer measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our data transfer converter for more conversion options.
For more data transfer conversion questions, visit our FAQ page or explore our conversion guides.
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Verified Against Authority Standards
All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.
International Electrotechnical Commission — Standards for data transfer rates
Last verified: February 19, 2026