**Overview**

Monthly streaming data usage can be manually estimated by taking into account the following factors:

- the total bitrate configured on the Teradek encoder (Cube / Bond / Slice / T-RAX), including both the audio bitrate and the video bitrate
- the time duration you want to stream for each event, typically at an hourly rate
- the number of events per month

The audio and video bitrate specified on Teradek encoders are listed in *mega bits per second (Mbps)*, and these values need to be converted to

*mega*per second, which is the value used by the mobile network carriers on their data plans.

**bytes**per second (M**B**ps)Once converted to Megabytes per second, the value is converted to Gigabytes per hour to estimate the usage for network traffic streamed out by the encoder.

**Examples**

To simplify the calculation process you can use online utilities to sum the audio and video bitrates, and convert from that summed bitrate value in Megabits per second to Gigabytes per hour.

That Gigabyte per hour estimate could then be multiplied by the number of hours per month that you anticipate streaming.

Below are sample calculations using the Wolfram Alpha, but any number of online calculators may be used to make this calculation.

**Example 1**

Video bitrate : 1 Mbps

Audio bitrate: 128 kbps

The combined bitrate is (1 Mbps + 0.128 Mbps) = 1.128 Mbps.

After convertion from Megabits per second to Gigabytes per hour, this is approximately 0.5 Gigabytes per hour (rounded down).

http://www.wolframalpha.com/input/?i=1.128+Megabit+per+second+to+Gigabytes+per+hour

**Example 2**

Video bitrate: 2 Mbps

Audio bitrate: 192 kbps

The combined bitrate is (2 Mbps + 0.192 Mbps) = 2.192 Mbps.

After conversion from Mb per second to Gigabytes per hour, this is approximately 1 Gigabyte per hour (rounded up).

http://www.wolframalpha.com/input/?i=2.192+Megabit+per+second+to+Gigabytes+per+hour

**Example 3**

Video bitrate: 4 Mbps

Audio bitrate: 256 kbps

The combined bitrate is (4 Mbps + 0.256 Mbps) = 4.256 Mbps.

After conversion from Megabits per second to Gigabytes per hour, this is approximately 1.9 Gigabytes per hour (rounded down).

http://www.wolframalpha.com/input/?i=4.256+Megabit+per+second+to+Gigabytes+per+hour

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