Hi Leonardo,
There is a slight difference when you list your height at 6’0″ as opposed to 5’11. You really have to weigh whether receiving a little bit more matches is worth telling a little white lie.
In your case, the difference in height is so little, that you are not necessarily going to turn a girl off if you listed your height at 6’0″ and she were to meet you in life and you were 5’11”. She most likely wouldn’t be able to tell the difference.
However, it really comes down to what you can live with. Just about everyone, male or female, embellishes their dating profile to an extent. You wouldn’t be the first, nor the last.