Which device measures steps to estimate distance walked?

• A. Heart rate monitor
• B. Pedometer
• C. Speedometer
• D. Wheel odometer

Answer: (B)

Counting steps that you take is the key idea here. A pedometer is designed to detect each step, and distance walked can be estimated by multiplying the number of steps by your average stride length. This makes it a simple and practical tool for tracking walking activity or distance in a fitness or PE setting.

In practice, you wear a pedometer at the hip or on the waistband, and it tallies steps as you move. The distance estimate comes from steps times stride length, which you can adjust based on your height or measured stride.

Heart rate monitors track how hard your body is working, not how far you’ve traveled. Speedometers show how fast you’re moving at a given moment, not the total distance over a period. Wheel odometers measure distance by wheel rotations, which is more common on vehicles or devices with wheels, not walking.

Therefore, the device that measures steps to estimate distance walked is the pedometer.