Mbps to Kbps Converter
Convert megabits per second to kilobits per second instantly. Useful for configuring bandwidth limits, audio streaming quality settings, and comparing older modem speeds.
Calculator
Formula: Kbps = Mbps × 1,000. There are 1,000 kilobits in every megabit.
Quick answer
Kbps = Mbps × 1,000. Reverse: Mbps = Kbps ÷ 1,000.
- 0.5 Mbps = 500 Kbps
- 1 Mbps = 1,000 Kbps
- 5 Mbps = 5,000 Kbps
- 10 Mbps = 10,000 Kbps
- 100 Mbps = 100,000 Kbps
Mbps to Kbps conversion table
| Mbps | Kbps | KB/s equivalent | Real-world context |
|---|---|---|---|
| 0.056 Mbps | 56 Kbps | 7 KB/s | Dial-up modem maximum |
| 0.128 Mbps | 128 Kbps | 16 KB/s | MP3 audio standard bitrate |
| 0.256 Mbps | 256 Kbps | 32 KB/s | High-quality audio streaming |
| 0.5 Mbps | 500 Kbps | 62.5 KB/s | Low-quality video streaming |
| 1 Mbps | 1,000 Kbps | 125 KB/s | SD video / basic broadband |
| 5 Mbps | 5,000 Kbps | 625 KB/s | HD video streaming (720p) |
| 10 Mbps | 10,000 Kbps | 1,250 KB/s | Full HD streaming (1080p) |
| 25 Mbps | 25,000 Kbps | 3,125 KB/s | 4K streaming minimum |
| 100 Mbps | 100,000 Kbps | 12,500 KB/s | Standard home fibre plan |
| 1,000 Mbps | 1,000,000 Kbps | 125,000 KB/s | Gigabit broadband |
Formula explanation
Kbps = Mbps × 1,000
Reverse: Mbps = Kbps ÷ 1,000
The “kilo” prefix means 1,000 and “mega” means 1,000,000 in SI decimal networking units. So 1 Mbps = 1,000 Kbps. No byte/bit conversion is needed — both units measure in bits.
Note on Kibibits (Kibps)
Some older systems use kibibits per second (Kibps, base-2) where 1 Kibps = 1,024 bps. Modern networking uses Kbps (base-10, 1 Kbps = 1,000 bps). The difference is small (2.4%) but can appear in legacy router firmware settings.
Where Kbps is still used
While most modern connections are measured in Mbps or Gbps, Kbps remains common in several contexts:
- Audio streaming bitrate — Spotify standard (128 Kbps), high quality (256 Kbps), very high (320 Kbps)
- Video call quality — Minimum recommended bitrates for Zoom and Teams are expressed in Kbps
- Bandwidth throttling — Some ISPs throttle mobile data to 128 Kbps or 512 Kbps after the monthly cap
- IoT and M2M devices — Sensors and trackers often connect at 9.6–115.2 Kbps
- Router QoS settings — Many router firmware interfaces still use Kbps for bandwidth allocation
- VoIP quality — Voice calls typically require 64–128 Kbps per channel
Frequently asked questions
How do I convert Mbps to Kbps?
Multiply your Mbps value by 1,000. The formula is Kbps = Mbps × 1,000. For example, 5 Mbps × 1,000 = 5,000 Kbps.
How many Kbps is 1 Mbps?
1 Mbps equals exactly 1,000 Kbps. The “mega” prefix means one million bits per second, and the “kilo” prefix means one thousand bits per second, so the ratio is always 1,000.
What is 10 Mbps in Kbps?
10 Mbps equals 10,000 Kbps. This speed supports full HD (1080p) video streaming on one device and is sufficient for most light home internet usage.
Is 512 Kbps fast enough for video calls?
512 Kbps (0.512 Mbps) is generally the minimum for standard definition video calls. For HD video calling (720p), most platforms recommend at least 1,500 Kbps (1.5 Mbps). For 1080p video calls, 3,000 Kbps (3 Mbps) upload speed is recommended.
Why does my router use Kbps in its QoS settings?
Many router firmware interfaces (DD-WRT, OpenWrt, older manufacturer firmware) were designed when Kbps was the most common unit for bandwidth management. Kbps provides finer granularity — you can set a limit of 512 Kbps (0.512 Mbps) which would be awkward to express in Mbps. Always convert your desired Mbps limit to Kbps (multiply by 1,000) when entering values in these interfaces.
What is 128 Kbps in Mbps?
128 Kbps equals 0.128 Mbps. This is the standard bitrate for MP3 audio files and the speed that many mobile carriers throttle data to after the monthly allowance is exhausted. At 128 Kbps, audio streaming works but video streaming is very poor quality.