Tech & Gadgets

Camera Memory Card Calculator: Card Size and Speed for Photos and Video

Free tool · Updated October 3, 2026 · By CouponTalk

Your result

Enter your measurements to see your result.

Quick answer

A RAW photo is about 1.2 MB per megapixel and a JPEG about 0.35 MB, so a 24 MP camera makes about 29 MB RAW and 8 MB JPEG files. Video uses its bitrate: 100 Mbps 4K is about 750 MB a minute and needs a V30 card; 200 Mbps or more needs V60 or V90. Shooting 500 RAW photos and 20 minutes of 100 Mbps video needs about 30 GB, so a 64 GB card with spare room.

How to use this calculator

Enter your camera's megapixels and photo format.
Add how many photos and minutes of video you take in a shoot.
Pick the video bitrate from your camera settings.

Card speed classes

SD card speed classes (SD Association)
Class	Minimum write speed	Use for
U1 / V10	10 MB/s	Photos, 1080p video
U3 / V30	30 MB/s	4K video up to about 100 Mbps
V60	60 MB/s	4K at 150–200 Mbps, fast bursts
V90	90 MB/s	High-bitrate 4K/6K, 8K

File sizes vary by camera, scene and compression. Leave about 20% spare space.

Frequently asked questions

What does V30 mean?

A minimum sustained write speed of 30 MB/s, enough for video up to about 240 Mbps in practice. V60 is 60 MB/s and V90 is 90 MB/s.

One big card or several smaller ones?

Two smaller cards reduce the risk of losing a whole shoot if a card fails.

Does the card affect burst shooting?

Yes. A faster card clears the camera's buffer quicker, so you can keep shooting.

Related calculators

Camera Lens SelectorSubject + sensor to lens to buy Mobile Data Usage CalculatorDaily use to GB per day Battery Charge Time CalculatorBattery + charger to charge time RAM Calculator: How Much RAM Do I Need?Your use to 8, 16, 32 GB

See all tools & calculators → · Read Electronics buying guides →

Know about CouponTalk

CouponTalk is an Indian shopping research site founded by Hemant Kumar. We help you choose the right product, get the size right and pay a fair price, with buying guides, 248 free calculators, a price tracker and verified deals.

We stand out because

Made for India: prices in ₹, Indian sizes, and brands and stores you can buy from here.
Show the working: every calculator explains its formula and gives a worked example.
Real price history: each price shows when it was checked, so you know a deal is real.
Free for everyone: no sign-up, no paywall.

Our key focus areas

Buying guides for electrical, home, kitchen, bike gear and fashion.
Free calculators for sizes, EMI, GST, gold and seller fees.
Price history and price drop alerts for 22 Indian stores.
Verified deals and coupons on Telegram.

What makes us different

Not for sale: no brand can pay for a ranking or a "best" spot.
Checked by people: every guide and calculator is reviewed before it goes live.
Clear sources: RBI rules, GST rates and standard size charts, explained on each tool.
Honest limits: we show past prices and never promise future ones. Our editorial policy.

Affiliate disclosure: CouponTalk is reader-supported. We add affiliate links to some products and stores, and we may earn a commission when you click a link and buy, at no extra cost to you. Commissions never change what we recommend. Read our affiliate disclosure.