Learn how to work out the actual measurement of an object by using scale factors and revise how to work out distance using a map, with practice questions and a quiz.

Maps, scales, surveyors’ tools, rulers and specimen jars make up just a few of the objects on display.

Smart scales track changes in your muscle mass, body fat percentage and other health metrics — but how do they work?

Body fat scales can be an easy way to track your body fat percentage, but they may not tell the complete story about your health.

Withings' latest scale, the Body Cardio, claims it can measure body fat, heart health, muscle mass, heart rate, and more.

However, the new map extends the survey's reach, more than doubling the size of the examined area and thereby allowing for more precise measurements.

As someone who likes to stay in shape, I was looking forward to reviewing the QardioBase smart scale and body composition analyzer. The device sits alongside the QardioArm, a smart blood pressure ...

Most scales under $50 have significant drawbacks, but the Wyze Scale X—which you can use without its app—has proved reliable over years of long-term testing.