About Sew Chic Sizing

Because many of us are not a perfect numbered size, sometimes pattern width alterations are necessary. We’d like to help you know how to alter your pattern with the least amount of trouble, so we suggest that you start thinking of the cutting lines as just a mathematical guide to width change rather than a hard and fast must cut line. 

The first step is to compare your measurements to the chart. Find the number closest to your measurement without going over. As an example, let’s assume a hip measurement of 42″, which is right between size 12 and 14 on the chart. Because our measurement is exactly between these two sizes, we can draw our own cut line exactly between these two sizes which is the exact size we need for our measurement! If we use this same method at the waist and bust, tapering from one line to the next, matching up all the pieces vertically, we can be more assured of a fairly well fitting garment without making a trial garment first.

Use the chart below to find out where to draw the cut line in relation to your measurements.

For example, using the same example as previously mentioned, the difference between the sizing chart and the actual measurement is 1″. The chart below indicates that a 1″ difference requires an additional 1/4″ be added to the side seams. Draw a new line 1/4″ from the size 12 cutting line and taper it to the next corresponding measurement for waist and bust. In this way, a close enough fit can be achieved using math, not guess work. Add just the right amount to your pattern to make it the right size for your measurements before you cut.