E string as C string?

i snapped the C string and had a extra E string laying around. I strung it up and tuned it to C. it sounds okay to me. is this fine or is my ears off?

C being the largest diameter and the E being 2nd largest not much smaller. for concert scale.

Its not going to hurt your ukulele as the E string tuned down to C is lower in tension than standard. Its not ideal. The intonation MAY be out a little, its probably quieter in relation to the other strings and it may rattle against the frets.

If it works for you it works but I wouldn't deliberately do it.

Anthony

If your strings had been on the uke for awhile, it would be better to replace them with a new set.
My experience is when one string breaks others will follow unless there is problem with the uke or you over tightened it.