Abstract: A computerized garment pattern production system automatically extrapolates or interpolates the dimensions of an existing garment pattern for a new custom-fitting garment upon the input of changes in a customer's stored indirect parameters. In a preferred embodiment, along with a customer's body dimensions, the customer's weight is also stored in his/her profile. When a customer who has gained weight (or lost weight) since his/her body dimensions were stored orders a new garment, the dimensions of the pattern are automatically extrapolated (or interpolated) according to a stored algorithm and the new weight to surmise new body and hence pattern dimensions. Therefore, a customer with a stored profile ordering new garments need merely supply his/her new weight, and need not have his/her body dimensions re-measured. The present invention better facilitates custom garment ordering from remote locations via telephone, the Internet, and the like for customers with stored profiles.