To measure height accurately, one can use a tape measure, a flat surface like a wall, and a straight object such as a ruler, book, or cereal box. The process involves standing barefoot with feet flat and heels, back, and head against the wall. Then, using the flat object placed horizontally on top of the head, mark its position on the wall. Measure the distance from the floor to the mark to get the height. If measuring alone, use the flat object to align with the top of the head while facing a mirror or hold it steady to mark the wall, then measure the height to the floor. For higher-tech methods, smartphones with AR Measure apps can also measure height automatically by scanning from feet to head. Detailed steps for measurement with another person or alone:
- Stand straight with feet flat, heels, back, and head touching the wall.
- Place a flat object horizontally on the head to create a right angle with the wall.
- Mark where the bottom of the object meets the wall.
- Measure the distance from the floor to this mark with a tape measure.
Smartphone apps like Apple's Measure app or Huawei's AR Measure can automatically or manually measure height by pointing the phone camera from feet to head. Height measurement is often recorded in feet/inches or centimeters. Height in inches can be converted to centimeters by multiplying by 2.54. This method applies both to adults and children, ensuring the person looks straight ahead and removes shoes and bulky clothing for accuracy.