1. What is Video Size Calculation?

Video size calculation estimates the storage space required for a video file based on its bitrate and duration. This is essential for storage planning and bandwidth considerations.

2. How Does the Calculator Work?

The calculator uses the video size formula:

Where:

• \( Bitrate \) — Data rate in bits per second (bits/s)
• \( Duration \) — Length of video in seconds
• \( 8 \) — Conversion factor from bits to bytes

Explanation: The formula calculates raw video size before any compression. For compressed video, this represents the approximate size.

3. Importance of Video Size Calculation

Details: Knowing video size helps in storage planning, bandwidth allocation, and ensuring compatibility with delivery platforms.

4. Using the Calculator

Tips: Enter bitrate in bits per second and duration in seconds. All values must be valid (bitrate > 0, duration > 0).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between bitrate and file size?
A: Bitrate is the amount of data per second, while file size is the total data for the entire video.

Q2: How does compression affect video size?
A: Compression reduces file size by removing redundant information, but the calculation shows the uncompressed size.

Q3: What are typical bitrates for different video qualities?
A: SD video might be 1-2 Mbps, HD 5-8 Mbps, and 4K 15-25 Mbps, depending on codec and content.

Q4: Why divide by 8 in the formula?
A: To convert from bits (used for bitrate) to bytes (used for file size), since there are 8 bits in a byte.

Q5: Can this calculate size for multiple videos?
A: This calculates for a single video. For multiple videos, sum their individual sizes.