Abstract: Computer-implemented method for determining a tension value of a limb (5) of a person, the tension value of the limb (5) being used along with a skin value of the limb (5) for production of a custom-tailored compression garment for the limb (5), the skin value describing the circumference of the limb (5) without any applied compression and the tension value describing the circumference of the limb (5) with the compression garment applying a desired compression, wherein the skin value of the limb (5) is received and the tension value of the limb (5) is calculated from the skin value according to a calculation instruction parametrized by at least one parameter, the parameter being derived from a dataset (11) comprising multiple associated tuples of skin values and tension values.