Utilitarianism theory is based on calxulations-- Bentham asserted that the quantity and quality of happiness can be measured in terms of:

A. Intensity B. Duration C. Certainty - a probability of happiness or suffering taking place D. Volume - a number of involved individuals E. Time - whether happiness or suffering will happen now or in the future; F. Future consequences - Whether the particular activity bring benefit also in the future; G. Purity - Whether the outcome delivers solely benefit or does is it also bring suffering.