Photo Storage Calculator
Fill in the values and the answer updates as you type.
How the Photo Storage Calculator works
Photos = card capacity in MB ÷ average file size. Card makers count 1 GB as 1,000 MB, and formatting takes a small share, so real capacity is slightly lower. RAW files from a 24–45 MP camera usually run 25–60 MB. Keep a spare card and back up to a second drive the same day. Example: A 128 GB card holds about 2,844 photos of 45 MB each, enough for 5.7 days at 500 shots a day.
Inputs and results
The Photo Storage Calculator takes 3 inputs and gives 3 results.
What you enter
- Memory card size (GB) — starts at 128.
- Average file size (MB) — starts at 45.
- Shots per day — starts at 500.
What you get
- Photos on the card
- Days of shooting per card
- Cards needed per 1,000 photos
Example: Photo Storage Calculator with the starting values
With memory card size 128 GB, average file size 45 MB and shots per day 500, the calculator returns:
| Photos on the card | 2,844 |
|---|---|
| Days of shooting per card | 5.7 |
| Cards needed per 1,000 photos | 1 |
Change any value above and the results update straight away.
Photo Storage Calculator FAQ
How do I use the Photo Storage Calculator?
Enter memory card size, average file size and shots per day in the fields, then read photos on the card, days of shooting per card and cards needed per 1,000 photos in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Photo Storage Calculator calculate?
How many photos fit on a memory card and how long it lasts. It returns photos on the card, days of shooting per card and cards needed per 1,000 photos from the 3 values you provide.
What values does the Photo Storage Calculator start with?
It opens with memory card size 128 GB, average file size 45 MB and shots per day 500 so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Photo Storage Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Photo Storage Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.