This Pennsylvania alimony calculator calculates Pennsylvania maintenance using Pennsylvania alimony formula. Use this calculator the get an estimate of alimony for the state of Pennsylvania!Unlike child support and Alimony Pendente Lite (APL), there is no online calculator to determine an exact amount of alimony. Find out how alimony is calculated in Pennsylvania and what factors the court considers when deciding spousal support awards. The following forms can be printed and submitted to your county DRS. Read the descriptions to determine which forms are appropriate for your needs. An overview of how child and spousal support works in Philadelphia County, PA, how to file for support and how it is allocated. Spousal Support and Alimony Pendente Lite are calculated pursuant to a mathematical formula based on the parties' monthly net incomes. Get an estimate for alimony payments and duration. Get an idea on how much money a month you can expect to pay, and for how you can expect to pay it.