How to Measure for a Belt Size
Using an existing belt, correct measurement begins from the place where the buckle connects to the belt and then to the middle hole or desired length on belts that do not have holes. The rest of the belt is not considered for measurement purposes.

One Size Fits All
A belt should normally be two sizes larger than the trouser size. The smaller size 41 could fit all sizes from 30 to 39 trousers. Of course, the smaller the person, the more excess belt would need to be cut. The longer size 48 is for the larger men who wear size 40 - 46 trousers. Again, the smaller the size, the more excess belt would need to be cut.

Instructions for Cutting Excess Belt to Correct Size
There is a swivel on the back of the buckle that will open (same as military belt) and allow you to pull the belt out and cut from this end to the desired length, if necessary.