Free memory calculators

What does a gigabyte
really cost?

Kits, packs and terabytes make memory prices hard to compare. Three small tools put them on equal terms.

Compare memory prices Free to use. No sign-up. The maths is always shown.

Price per GB

Turn the price on the box into the price of a gigabyte: enter what you pay, the capacity of one module, card or stick, and how many come in the pack.

Enter the card's capacity, your camera's photo size and video bitrate: see how many photos or minutes of video the card holds.

Enter an amount in GB or TB: see it in the decimal units labels use and in the binary units Windows shows.

Put the numbers to work

Our catalog ranks Amazon RAM, memory cards and USB sticks by price per GB of labelled capacity.