There are paycheck caculators to help you determine how much your paycheck will be after deductions and to help you decide how much you should have deducted to cover taxes.
Paycheck Calculators to Estimate Your Paycheck
PaycheckCity.com Paycheck Calculator
Free hourly and salary paycheck calculators.
IRS Witholding Calculator
Use the IRS Withholding calculator to ensure that you do not have too much or too little income tax withheld from their pay.
Use this Overtime Calculator from the United States Department of Labor to help you figure out if you're eligible for overtime pay and to calculate how much overtime you will receive for a sample pay period.
Tax and Paycheck Calculators
Free tax calculators and other tax tools are available to analyze your paycheck. The About.com Guide to Taxes has information on the top tax and paycheck calculators.
Interested to see how your salary offer compares? These salary calculators and surveys will help you find out salary information for your current job as well as positions you're interested in.