How long does it take for your fingers to adjust to a string instrument?

“I’m new to string instruments and I love to play cello, but my fingers hurt a lot. How long does it take for calluses to form on my fingers to protect them from pain?”

It can take few weeks with daily practice, but I’d say do what’s comfortable for you, don’t hurt yourself and then slowly push yourself to practice more and more time. Start with 15 or 20 minutes daily cello practice routine, do it for a week and then little by little extend the time you spend on it.