Estimate Output Size
Predict the final size of your video file before export, based on bitrate and duration.
Video File Size Calculator
Enter your video bitrate, optional audio bitrate, and total duration. The Pexo Agent combines these values to estimate the expected output file size, helping you plan for delivery and storage.
The Agent will combine the bitrates and duration to estimate the expected output file size.
What It Is
Understanding the Video File Size Calculator
Video File Size Calculator estimates the expected size of a video file based on its bitrate and total duration. This tool is helpful for creators who need to predict if their video might meet delivery limits or fit storage requirements before the export process.
The Video File Size Calculator helps you plan your video projects by providing a clear estimate of the output size. It allows you to adjust your bitrate or duration expectations to work towards a desired file size, avoiding surprises after rendering.
Meet Delivery Limits
Determine if your video will fit within specific delivery limits.
Budget Disk Space
Plan your storage needs by estimating how much space your finished video files will require.
How It Works
Using the Video File Size Calculator
Estimate your video's file size in three steps for planning.
Input Bitrates and Duration
Enter the video bitrate, and optionally, the audio bitrate if known. Then, provide the total duration of your video.
Calculate Estimated Size
The Pexo Agent combines the provided video and audio bitrates with the total duration. It normalizes units to calculate the expected output file size.
Inspect and Modify
Inspect the estimated file size. The Agent will show the assumptions used and flag any missing values that prevent a useful estimate, allowing you to adjust your inputs.
Key Features
File Size Estimation Capabilities
The Pexo Agent makes specific decisions to provide a practical estimate of your video's file size for planning.
Combine Video and Audio Bitrates
The Agent combines both video and audio bitrates when provided, offering a more comprehensive estimate of the total file size.
Normalize Units for Calculation
All time and bitrate units are automatically normalized by the Agent to ensure consistent calculations for the file size.
Detail Calculation Assumptions
The calculator clearly displays the underlying assumptions and formulas used to derive the file size estimate, for transparency.
Flag Missing Values
The Agent identifies and flags any missing input values that are necessary for a useful estimate, guiding you to complete the required information.
Questions & Answers
Video File Size Calculator FAQs
How is video file size estimated?
Video file size is estimated by multiplying the total bitrate (video bitrate + audio bitrate) by the total duration of the video. The result is then converted to a standard file size unit like MB or GB.
Should I include audio bitrate?
Yes, including the audio bitrate provides a more complete estimate of the total file size, as audio contributes to the overall data stream.
Can I switch between size units?
The calculator presents results in common units like megabytes (MB) or gigabytes (GB).
Why can the exported file differ?
The estimate is a planning tool. Actual file size can differ due to factors like container overhead, variable bitrate encoding, and specific encoder settings, which are not accounted for in this basic calculation.
Does this compress my video?
No, this is a calculator that provides an estimate based on parameters you enter. It does not process or compress any video files.
Ready to Try?
Estimate Video File Sizes
Plan your video delivery and storage by estimating file sizes with Pexo's Video File Size Calculator.