Size Comparison: Lengths

Compare lengths in different units and with certain sizes, as Earth radius and circumference. Often, lengths are compared with visual values, to have a better imagination of them. Here, the SI-units meters and kilometers, as well as the imperial and US units inch, foot, yard and mile, can be converted into different reference magnitudes. For these reference magnitudes, average values are used. Especially the thickness of the human hair has huge individual differences.
Please enter one value, the other values will be calculated.

Example: a car with 100000 miles has driven 4 times around Earth.

Millimeters:
Centimeters:
Meters:
Kilometers:

Inches:
Feet:
Yards:
Miles:

Thickness human hair:
Height Pyramid of Khufu:
Height Mount Everest:
Earth radius:
Earth diameter:
Earth circumference:
Distance Earth-Moon:

Round to decimal places