20 kilometers to millimeter

To convert 20 kilometers to millimeter, multiply 20 kilometers by 1000000.

The formula kilometers × 1000000

Solution steps:

20 kilometers × 1000000
= 20 × 1000000
= 20000000 mm
Hence, 20 kilometers in millimeter is equal to 20000000 mm.
20 km = 20000000 mm