genomic location convertion between hg19 and hg38

Hi,

I need to convert hg19 coordinates to hg38 (or opposite, doesn't matter).
I tried to use liftOver from uscc, but without results.

My coordinate in hg38
2:230442937-230450255

In hg19:
chr2:231307651-231314970

And after conversion in liftOver the results is:
chr2:231307652-231314970

Where I made a mistake? I understand that that the one base is due to the different database, but why is difference in length?

And how is the easiest way to convert this?

Best,
d.