When we took Peter to his 18 month appointment in June, they said he was 50% in weight, and 75% in height. So I knew he was tall (he's one of the tallest in his daycare class), but didn't really realize how big he looked until we put him next to his little cousin, Riley, a few weeks ago. She's about 6 months younger than him. The funny thing is, is that he was only 10% for head size, and I thought he had a big head, so that kind of amused me. No further comments needed on this.