ProRataWise

ProRataWise is a free insurance pro rata calculator. Enter the premium and policy dates to see policy days, daily rate, pro rata factor, the formula behind the result, and an estimated refund for the unused portion of the premium. It uses a straight-line daily calculation and runs entirely in the browser. It is an estimation tool: it does not calculate short-rate penalties or endorsements, and an estimate is not a guaranteed refund.