Using SharePoint 2013, I have a list column of type Number, and I'd like to restrict it to either whole / half numbers, i.e. 0.5, 1, 1.5, 2, 2.5. But values such as 3.4, 2.6 wouldn't be allowed.

A choice column is unsuitable as the range users will input could go into the 100's.

Can I use custom validation on the column for this and if so how?

1 Answer 1


Create Number column with decimal places as 1.

Use column validation with formula :


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.