
Elaine B. answered 06/02/19
Fun and Enthusiastic ESL and English Tutor
You can say:
”over an hour”
”over two thousand”
”more than a kilo”
With this usage, it is understood that “more than a kilo” means anywhere up to 1.99999, but never 2.0kg.
You can further clarify it with a little:
”a little over an hour”
”a little over eighty”
”a little over a gram”
It can be a useful distinction in some contexts.