The easyest way would probably be to download a wallet like core or electrum, put it on a usb stick and transfer it to an airgapped computer (a pc that will never be online).
There start core or electrum (while being offline) and import the private key... then check if it's valid and if the wallet is now monitoring the correct address... Afterwards clean everything up and at least reboot the airgapped pc.

There are ways to generate the address starting from a private key, but this is very technical, and rather hard to do... Using an offline wallet is easy

Hello

check this:

https://github.com/xcbtrader/bitcoin-address