Based on loan parameters you enter, this C# .NET application calculates your monthly mortgage payments.
The following formula is used to calculate the fixed monthly payment (P) required to fully amortize a loan of (L) dollars over a term of (n) months at a monthly interest rate of (r):
P = L[r(1 + r)n]/[(1 + r)n - 1]
You can get the full source code for this application by selecting the Download Source Code link.