Video Bitrate Calculator

Work out a video bitrate for a target file size and duration. Enter your own values below to see available video bitrate and check the method behind it.

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Your inputs

Change the example values to match your situation.

Your result

Let’s work it out.

Fill in your inputs and select Calculate.
Your result and breakdown will appear here.

How this calculator works

Video kbps = target decimal MB × 8000 ÷ seconds − audio kbps. Container overhead is excluded.

What is Video Bitrate Calculator?

Video Bitrate Calculator helps you work out a video bitrate for a target file size and duration.

The main result is available video bitrate, with a breakdown of total bitrate. The formula, example and assumptions below explain how to interpret it.

How to use Video Bitrate Calculator

Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.

  1. Gather target file size (MB), duration (seconds) and audio bitrate (kbps). Use values from the same situation or reporting period.
  2. Replace the example target file size with your own value, then complete the other fields. Check the displayed units.
  3. Select Calculate and read available video bitrate with its result breakdown. Change one input and calculate again to compare a second scenario. Reset restores the original example.
  • Enter target file size in MB, at least 0.001. Decimals are accepted.
  • Enter duration in seconds, at least 0.001. Decimals are accepted.
  • Enter audio bitrate in kbps, at least 0. Decimals are accepted.

Video Bitrate Calculator: a worked example

With the inputs below, the result is 6,474.666667 kbps (available video bitrate). Follow the example, then replace these illustrative values with your own.

Example inputs and output
Input or outputExample value
Target file size (MB)100 MB
Duration (seconds)120 seconds
Audio bitrate (kbps)192 kbps
Available video bitrate6,474.666667 kbps
Total bitrate6,666.666667 kbps

Understanding the Video Bitrate result

Read available video bitrate alongside total bitrate. These describe different parts of the same calculation.

Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.

  • Example Total bitrate: 6,666.666667 kbps

Video Bitrate Calculator: assumptions and common mistakes

A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.

  • Match numerators and denominators from the same reporting period. Creator RPM is revenue per thousand views, while advertiser CPM measures spending.

For wider guidance, visit Google Ads Help. The formula and scope of this specific tool are stated on this page.

Video Bitrate Calculator FAQs

What does Video Bitrate Calculator calculate?

Video Bitrate Calculator helps you work out a video bitrate for a target file size and duration. Its main output is available video bitrate in kbps.

What inputs do I need for Video Bitrate Calculator?

You need target file size (MB), duration (seconds) and audio bitrate (kbps). Use the field labels and units to match your figures to the formula.

Which formula does Video Bitrate Calculator use?

Video kbps = target decimal MB × 8000 ÷ seconds − audio kbps. Container overhead is excluded.

What is a worked example for Video Bitrate Calculator?

Example inputs: Target file size: 100 MB; Duration: 120 seconds; Audio bitrate: 192 kbps. The result is 6,474.666667 kbps (available video bitrate).

How should I enter target file size?

Enter target file size in MB, at least 0.001. Decimals are accepted.

How do I choose duration?

Enter duration in seconds, at least 0.001. Decimals are accepted. The example uses 120 seconds; replace it if your circumstances differ.

How should I read available video bitrate?

Read available video bitrate alongside total bitrate. These describe different parts of the same calculation.

Why might my Video Bitrate Calculator result differ from my records?

Match numerators and denominators from the same reporting period. Creator RPM is revenue per thousand views, while advertiser CPM measures spending. Differences in entered values, units or rounding can also change the comparison.

Can I compare two scenarios in Video Bitrate Calculator?

Yes. Note your first available video bitrate, change target file size or another input, and select Calculate again. Editing a field clears the old result so it is not mistaken for a new calculation.

Is Video Bitrate Calculator free, and where are my inputs calculated?

This calculator is free to use without signing in. Its formula runs in your browser; calculator inputs are not sent to a calculation API. The inputs reset to the example values when you reset the form or start a fresh page.