LOCAL TOOL / 本地工具

Video size estimator
视频体积估算

Plan a target bitrate before encoding. No files are read or uploaded. This calculator does not compress video.

编码前估算目标体积。不读取或上传文件；本工具不会压缩视频。

JavaScript required / 需要启用 JavaScript。

Estimate = seconds × (video + audio kbps) × 1000 ÷ 8. MB = 1,000,000 bytes; MiB = 1,048,576 bytes.

Container overhead and variable bitrate are excluded. Actual size and quality may differ. / 不含封装开销，未预测可变码率；实际体积与画质可能不同。