This calculator is going to give you the payment amount for principal and interest(P&I). If you escrow your taxes and insurance, divide the annual amounts by 12. Then add those to figures to the P&I for a total payment.
Extra Payment Calculator
Seeing as how our mortgage payment is probably costing us a lot in interest, we want to pay it off early. Lucky for you, there's a calculator for that.
Should I refinance?
Should I Refinance?
Rent vs. Buy Calculator