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Sd Card Record Time Calculator

Reviewed by Calculator Editorial Team

Determine how long an SD card can record video or photos with our SD card record time calculator. Simply input your SD card capacity, file size, and recording settings to get an accurate estimate of recording duration.

How to Use This Calculator

Using our SD card record time calculator is straightforward. Follow these steps to get your recording duration estimate:

  1. Enter the total capacity of your SD card in gigabytes (GB).
  2. Select the file size for your recordings (e.g., 1080p, 4K, or raw).
  3. Choose the frame rate for your recordings (e.g., 30fps, 60fps).
  4. Click the "Calculate" button to see your estimated recording time.

The calculator will display the estimated recording time in hours, minutes, and seconds, along with a breakdown of how the calculation was made.

Formula Explained

The calculation for SD card recording time is based on the following formula:

Recording Time (seconds) = (SD Card Capacity × 1024) / (File Size × Frame Rate)

Where:

  • SD Card Capacity is the total storage in gigabytes (GB).
  • File Size is the size of each frame in megabytes (MB).
  • Frame Rate is the number of frames per second (fps).

The result is converted to hours, minutes, and seconds for easier interpretation.

Worked Examples

Example 1: 1080p Video Recording

For a 64GB SD card recording at 1080p (1.5MB per frame) at 30fps:

Recording Time = (64 × 1024) / (1.5 × 30) = 67,108,864 / 45 = 1,491,312.57 seconds ≈ 414 hours, 12 minutes, 57 seconds

Example 2: 4K Video Recording

For a 128GB SD card recording at 4K (3MB per frame) at 60fps:

Recording Time = (128 × 1024) / (3 × 60) = 134,217,728 / 180 = 745,654.06 seconds ≈ 207 hours, 4 minutes, 15 seconds

Frequently Asked Questions

How accurate is the SD card record time calculator?
The calculator provides an estimate based on the inputs you provide. Actual recording time may vary slightly due to file system overhead and other factors.
Can I use this calculator for photo recording?
Yes, the calculator can estimate recording time for photos by treating each photo as a single frame with the specified file size.
What file sizes should I use for different resolutions?
Common file sizes are 1.5MB for 1080p, 3MB for 4K, and 6-12MB for raw formats. You can adjust these values based on your specific camera settings.