Quickly estimate your video’s file size based on duration and bitrate. Plan your exports, storage, and uploads with confidence no surprises, just accurate sizing.
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It estimates the final file size of a video based on its duration, video bitrate, and audio bitrat helping you plan for storage, uploads, or exports.
Bitrate is the amount of data used per second of video or audio. Higher bitrates generally mean better quality but result in larger file sizes.
You can enter the bitrates used in your export or encoding settings. Common values:
• Video Bitrate: 5000–8000 Kbps (for 1080p)
• Audio Bitrate: 128–320 Kbps (for standard audio)
Absolutely. Just enter the video’s total duration in minutes along with the appropriate bitrates to get a reliable size estimate.
The calculator uses Kbps (kilobits per second) for both video and audio bitrate. Make sure your input is in Kbps, not Mbps or KB/s.
Total bitrate is the sum of your video and audio bitrate. This value is used to calculate the final file size.
The estimate is very close to actual size, assuming constant bitrate encoding. Variable bitrate (VBR) may cause slight differences.
Knowing the file size helps you plan for upload limits, device storage, cloud capacity, or delivery constraint especially useful when uploading to platforms with size caps.
Yes! Just input the correct video and audio bitrate for your resolution. Higher resolutions typically require higher bitrates for good quality.
Yes, the calculator is designed to run fully offline and is optimized for mobile devices no internet connection needed after it loads.
