Maximum Cable Length vs. Data Rate

Purpose: To list out the different commonly used cables, and their corresponding maximum data rate given the length of the cable. These values are based off of estimated ideal conditions and should be interpreted with understanding that in real world applications results may vary.

Last Updated: February 2020

 

CAN Bus

Bit Rate

Cable Length

3 Mbps

5 meters

1.5 Mbps

15 meters

1 Mbps

30 meters

800 kbps

50 meters

500 kbps

100 meters

250 kbps

250 meters


RS-232

Bit Rate

Cable Length

921.6 kbps

2 meters

460.8 kbps

5 meters

230 kbps

12.5 meters

115.2 kbps

25 meters

57.6 kbps

50 meters

28.8 kbps

100 meters


RS-422

Data Rate

Cable Length

3 Mbps

5 meters

1.5 Mbps

15 meters

1 Mbps

30 meters

800 kbps

50 meters

500 kbps

100 meters

250 kbps

250 meters


RS-485

Data Rate

Cable Length

3 Gbps

5 meters

1 Gbps

10 meters

70 Mbps

50 meters

20 Mbps

100 meters

5 Mbps

200 meters

0.7 Mbps

500 meters


Ethernet (CAT5e)

Data Rate

Cable Length

1.5 Gbps

5 meters

0.5 Gbps

10 meters

30 Mbps

50 meters

8 Mbps

100 meters

2 Mbps

200 meters

0.3 Mbps

500 meters