Aren't you just a bit lazy Enjay? Google is your friend!!!
Anyway here is the answer.

The largest ever attendance was in 2000 when more than 120,000 people
attended and saw Brew win the Melbourne Cup.

In 1972 the race was converted to the metric distance of 3200 metres which is
18.69 metres or 61.30 feet short of two miles.
Find below other interesting Melbourne Cup trivia
and facts about the great race.

MELBOURNE CUP RACE RECORD:
Kingston Rule 1990 - 3 minutes 16.3 seconds

BIGGEST WINNING MARGINS:
8 lengths - Archer 1862 / Rain Lover 1968

HIGHEST WINNING WEIGHT:
10st 5 lb (65.5 kg) Carbine
10st 2 lb (64.5 kg) Archer
10st 0 lb (63.5 kg) Poitrel

LOWEST WINNING WEIGHT:
33.5kg, Banker 1863

HIGHEST WEIGHT CARRIED:
10st 10 lb (68 kg) Phar Lap
Cheers