Dash cam SD card size chart
To keep a full 8-hour day you need a 64GB card for a 1080p front camera, 128GB for 4K front only, and 256GB for a 4K front and rear camera.
256GB / high endurance
A mid-range pick from the gear this chart is about. More across the price range below the chart.
Smallest standard card that holds the stated hours at typical bitrates. Cells marked over 512GB exceed what most dash cams support. Run your own numbers in the dash cam sd card size calculator.
| Hours kept | 1080p | 2K | 2.5K | 4K |
|---|---|---|---|---|
| 1 h | 16GB | 16GB | 16GB | 16GB |
| 2 h | 16GB | 16GB | 32GB | 32GB |
| 4 h | 32GB | 32GB | 64GB | 64GB |
| 6 h | 64GB | 64GB | 64GB | 128GB |
| 8 h | 64GB | 64GB | 128GB | 128GB |
| 12 h | 128GB | 128GB | 128GB | 256GB |
| 24 h | 256GB | 256GB | 256GB | 512GB |
| Hours kept | 1080p | 2K | 2.5K | 4K |
|---|---|---|---|---|
| 1 h | 16GB | 16GB | 16GB | 32GB |
| 2 h | 32GB | 32GB | 32GB | 64GB |
| 4 h | 64GB | 64GB | 64GB | 128GB |
| 6 h | 64GB | 128GB | 128GB | 128GB |
| 8 h | 128GB | 128GB | 128GB | 256GB |
| 12 h | 128GB | 256GB | 256GB | 256GB |
| 24 h | 256GB | 512GB | 512GB | 512GB |
Cards in the sizes this chart recommends
An even spread across the price range. Prices change often.
SANDISK 32GB High Endurance Video microSDHC Card with Adapter for dash cam and home...32GB / high endurance$22.99Check price on Amazon
SANDISK 128GB High Endurance Video microSDXC Card with Adapter for dash cam and home...128GB / high endurance$36.99Check price on Amazon
Samsung PRO Endurance 128GB microSDXC Memory Card with Adapter128GB / high endurance$76.99Check price on Amazon
SANDISK 256GB MAX Endurance microSDXC Card with Adapter for Home Security Cameras and...256GB / high endurance$132.69Check price on Amazon
VIOFO 512GB Industrial Grade High Endurance microSD Card for Dash Cam512GB / high endurance$229.99Check price on Amazon
Frequently asked questions
Where do the numbers in this chart come from?
Smallest standard card that holds the stated hours at typical bitrates. Cells marked over 512GB exceed what most dash cams support. They are calculated, not measured on any one product, so real results vary with the specific model, its settings and its condition. The dash cam sd card size calculator runs the same formula on your own inputs.