Ameter is equal to 100 centimeters. 1 meter = 100 centimeters. The length of this guitar is about 1 meter. Meters can be used to measure the length of a house, or the size of a playground. And because a centimeter is 10 millimeters: 1 meter = 1000 millimeters. The back of this kitchen chair is 1 meter . A kilometer is equal to 1000 meters. Optional Twist a pipe cleaner around the ruler at 10 cm, and another at 20 cm so you can easily find the location 10 cm and 20 cm above the table or floor. A plastic or paper straw works, too. Note: We placed the observation points at 10, 20, and 30 cm from the object. If you have a very strong lens, you might want to switch to 5 cm, 10 cm and Thisis an online virtual ruler, it could be adjusted to an actual size, and has both metric and imperial scale units, before you use it, please set the pixels per inch to your own device. This is useful to me and welcome to share it KbRb7p.

5 cm ruler real size