A man is 6 feet, 3 inches tall. In SI units, the main is 190 centimeters, 1.90 meters, or 0.0019 kilometers tall. What distance is represented by these numbers?

1.9 metres

Explanation:

To measure a physical quantity, there are several system of units are used, One of the system of measurement of units is Standard International system of units.

In SI system the standard unit to measure length is metre.

In SI system the standard unit to measure mass is kilogram.

In SI system the standard unit to measure time is second.

In SI system the standard unit to measure temperature is kelvin.

In SI system the standard unit to measure electric current is ampere.

In SI system the standard unit to measure luminous intensity is candela.

In SI system the standard unit to measure amount of substance is mole.

So, the height of man in SI system is 1.9 metre.