An alligator is about 11.2 ft (3.4 m) long, while a crocodile is about 14.8 ft (4.5 m) long.

What are their heights?

The alligator is 17.7 in (45 cm) tall, and the crocodile is 21.7 in (55 cm) tall.

How much do they weigh?

An alligator weighs 507 lb (230 kg), whereas a crocodile weighs 992 lb (450 kg).

An alligator is smaller than a crocodile. You can picture the difference by comparing their lengths, heights, and weights.

Biggest vs smallest

1.32× the size

crocodile vs alligator

alligator: about 11.2 ft (3.4 m) long and 17.7 in (45 cm) tall · 507 lb (230 kg)
crocodile: about 14.8 ft (4.5 m) long and 21.7 in (55 cm) tall · 992 lb (450 kg)

Typical adult or standard sizes; real ones vary.

How long are they?: An alligator is about 11.2 ft (3.4 m) long, while a crocodile is about 14.8 ft (4.5 m) long.
What are their heights?: The alligator is 17.7 in (45 cm) tall, and the crocodile is 21.7 in (55 cm) tall.
How much do they weigh?: An alligator weighs 507 lb (230 kg), whereas a crocodile weighs 992 lb (450 kg).