8×10

8×10 indicates either a product of eight and ten or a pair of measurements for a rectangle. In arithmetic, 8×10 equals 80. When used to describe dimensions, 8 by 10 denotes a rectangle with sides of length eight and ten units; the actual size depends on the units involved (inches, centimeters, etc.).

In photography and printing, 8×10 commonly refers to a standard print or negative size of eight inches by ten inches. This size is widely used for enlargements, portraits, and archival prints. The equivalent large-format film size is 8×10 inches for sheet film, a format historically produced on specialty cameras and still used by some photographers for high-resolution images.

The aspect ratio of an 8×10 rectangle is 8:10, which simplifies to 4:5. This ratio influences cropping and composition in various photographic and art contexts, where artists select framing that conforms to or intentionally breaks this proportion.

Because 8×10 is a common print size, many frames, mats, and portfolios are designed to accommodate 8×10 prints. It remains a standard reference size in galleries, archives, and photographic studios, as well as a practical benchmark for evaluating image scale in both digital and print workflows.