Sd Card Calculator Video Dashcam

This SD card calculator for video dashcams helps you determine how many hours of video you can record on your SD card before it fills up. By entering your SD card capacity, video resolution, frame rate, and file format, you'll get an accurate estimate of recording time.

How to Use This Calculator

Using this dashcam SD card calculator is simple:

Enter your SD card capacity in gigabytes (GB)
Select your video resolution from the dropdown menu
Choose your frame rate from the options provided
Select your file format (H.264 or H.265)
Click the "Calculate" button to see your results

The calculator will display the estimated recording time in hours, as well as a breakdown of how the calculation was made.

Formula Used

The calculation is based on the following formula:

Recording Time (hours) = (SD Card Capacity × 1024) ÷ (Video Bitrate × Frame Rate)

The video bitrate is determined by your resolution and file format selection. The calculator uses standard bitrates for common dashcam settings.

Worked Example

Let's say you have a 64GB SD card, you're recording in 1080p at 30fps using H.264 format. The calculation would be:

Recording Time = (64 × 1024) ÷ (15 × 30) Recording Time = 65536 ÷ 450 Recording Time ≈ 145.63 hours

This means you could record approximately 145.63 hours of video before your 64GB SD card fills up.

Frequently Asked Questions

What is the best SD card for a dashcam?

The best SD cards for dashcams are Class 10 or UHS-I cards with high write speeds. Look for cards with at least 30MB/s write speed for 1080p recording.

How often should I replace my dashcam SD card?

You should replace your SD card when it's full or when you need to start a new recording. For continuous recording, you may want to use multiple SD cards.

What's the difference between H.264 and H.265 file formats?

H.265 provides better compression than H.264, allowing for longer recording times with the same storage capacity. However, some older dashcams may not support H.265.