How to convert flac to m4r on PC as I can't upload flac to iphone?

To convert FLAC to M4R on Windows computer. You can use a free online converter.

1. Find a Reliable Converter:
Just hit up your favorite browser and search for "FLAC to M4R converter." One that I often use is Online Audio Converter (online-audio-converter,com). 

2. Upload Your FLAC File:
Once you’re on the site, look for the option to upload your FLAC file. You can drag and drop it in or use the upload button. Pretty straightforward!

3. Select M4R as Output:
After you upload, you’ll see a drop-down menu for formats. Select M4R. 

4. Adjust Settings (Optional):
If you wanna get fancy, you can tweak the bitrate or add any other effects, but if you’re just looking to convert, you can skip this step.

5. Convert FLAC to M4R:
Hit that “Convert” button to convert FLAC to M4R! The site will do its thing, and after a few moments, you should get a download link.

6. Download the File:
Click on the link to download the M4R file to your computer. Boom! You’re done.