Calculator: Estimating Alimony in Colorado November 6, 2018 | Bill Henry Are you wondering how you can maximizing your alimony? Or, how much you might have to pay in alimony? Our Colorado alimony calculator allows you estimate the presumptive maintenance, negotiating ranges and duration of maintenance. Click here to assess the calculator Please keep in mind that the calculator is intended for your general information only. Laws change frequently, and we do not guarantee the accuracy of this calculator. Please consult the advice of a licensed attorney.