To convert kiloparsec (kpc) to millimeters (mm), you need to multiply the value in kiloparsec by 3.085677581e+22.
So, to convert 4.537091005e-20 kpc to mm:
4.537091005e-20 kpc * 3.085677581e+22 = 1399.9999998 mm
Therefore, 4.537091005e-20 kiloparsec is equal to 1399.9999998 millimeters.
This below table contains list of length units and conversion values:
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