Magic Photo Ruler

SJLab

About this app

Magic Photo Ruler is an AI measurement app that tells you the actual size of an object using just a single photo. Its core features include: AI measurement that measures object sizes from photos, automatic recognition of reference objects that allow measurement without a ruler, measurement of multiple objects and detailed dimensions by part within a single photo, a precision digital tape measure that uses your phone screen directly, screen calibration using a credit card, saving measurement records, and support for 12 languages.

AI Measurement via Photo

When you photograph an object to measure or select one from your gallery, the AI ​​automatically calculates its width, length, and height. You can also specify the object directly, such as by saying, "Measure the chair."

Automatic Recognition of Reference Objects

It automatically identifies standard objects in the photo, such as credit cards, A4 paper, or coins, and uses them as references. If there is no suitable reference, it estimates the size using surrounding clues, such as a water bottle or the height of a door, so there is no need to have a ruler with you.

Multiple Objects and Detailed Dimensions

It measures multiple objects simultaneously from a single photo and analyzes dimensions by part, such as the height of a chair seat or armrests. It provides a reliability score and a retake guide for each result. Precision Digital Tape Measure and Screen Calibration

You can use your phone screen as a real tape measure (cm/mm and inches). Place a standard credit card on the screen and adjust the size using the −/+ buttons to create an accurate tape measure that fits the device perfectly; once calibrated, the calibration is maintained.

Record Saving and Multilingual Support

Measurement results are saved on the device, allowing you to review photos, summaries, and detailed dimensions. It supports 12 languages, including Korean, English, Japanese, German, Spanish, French, Hindi, Indonesian, Portuguese, Russian, Vietnamese, and Arabic; switching languages ​​will also display the AI ​​result explanation in the corresponding language.

What’s new

Improvement in measuring tape accuracy