Here you can convert several coordinates at the same time.
Select the input format in the upper field and enter your coordinates into the field. Each coordinate is written in its own line. The values are separated by a comma ",".
Then select the desired final format in the lower field and click on the calculator symbol.
On the map the respective borders of the input and output format are indicated to you colored. So you can see if the two formats fit together at all.
This page is still in a test phase. Therefore it can come quite to errors.
But I will unlock more formats and functions bit by bit. You are welcome to tell me about bugs, suggestions and wishes.