Mortgage calculators for the decision in front of you.

Choose a borrower, Realtor, or investor workspace. Each tool shows the inputs, math, and limits behind the estimate.

Borrower Tools

Understand payments, payoff timing, and the long-term effect of extra principal before making a mortgage decision.

• Amortization and payoff planning
• Extra-payment comparisons
• Save and revisit loan scenarios

Realtor Tools

Turn financing questions into clear client conversations with fast buyer-payment and seller-proceeds scenarios.

• Buyer scenario builder
• Seller net sheet
• Client-ready planning views

Investor Tools

Run DSCR, comparable-sales, and fix-and-flip analyses as the numbers change.

• DSCR calculator
• Comparable analysis
• Fix-and-flip planning

Not sure which calculator applies?

Send DRG Mortgage your scenario and our team will help you identify which numbers to review first.