Measure the length of your stride and call it S. Then walk from the curb to your front door on eh sidewalk and count the number of strides. Say it is N. Then the length is S x N = Length in whatever unit you measured your stride.
VIigI d d f
10
Meters
10
10centimmeters
1 meter
9 cm
21 feet
18 centimetre is one estimate.
its 900
10centimmeters
4inches
Earthworms vary greatly in their length.
1 meter
12mm
300 feet
About 4 millimeters
9 cm
21 feet
2 centimeters
About 20 to 40