We love this relationship compatibility calculator, for not only does it test your compatibility with friends, but also with your siblings and parents.

Yes, okay, it does state whether you're likely to be compatible or not, but it also gives insights into the personality of the person your are using the relationship compatibility calculator with.

As such, you may not get on, but the compatibility calculator may give you a better understanding of where the other person is coming from and you can adjust your behaviours to improve that relationship.

Above ar screen shots of the free relationship compatibility calculator. To download this relationship compatibility calculator program click on the above images or click here and save to your hard drive.