For FEDERAL INCOME TAX REFUND CALCULATOR PLEASE VISIT
http://www.1040.com/tax-tools/tax-estimator/
For STATE TAX REFUND: It is difficult to give estimate for state tax return unless making data entry. But in general if federal return is more consequently state return will also increase in the same proportion for most states.
WE WILL GET YOU ATLEASET 1000$ MORE IN FEDERAL REFUND THAN THIS CALCULATOR
AND AROUND 500$ MORE IN STATE REFUND.