Mortgage Calculator 2026: How to Calculate Your Monthly Payment & Beat the Market
With 30-year fixed mortgage rates averaging 6.82% as of May 2026, understanding your true monthly cost before signing is non-negotiable. Our calculator gives you a full PITI breakdown — Principal, Interest, Taxes, and Insurance — updated in real time as you type.
The Amortization Formula Explained
Your P&I payment uses the formula M = P × [r(1+r)^n] / [(1+r)^n − 1]. On a $360,000 loan at 6.82% over 30 years, P&I is ~$2,360/month. Add property tax (~$450), insurance (~$150), and PMI if applicable, and your PITI exceeds $2,960+.
2026 Conforming & FHA Limits
The FHFA conforming limit is $766,550 for most US counties. FHA loans max out at $498,257 for standard markets, requiring just 3.5% down with a 580+ FICO score.
PMI: What It Costs and How to Avoid It
PMI typically costs 0.5–1.5% annually. On a $360K loan at 0.8%, that's $240/month extra. Cancel PMI once you reach 20% equity under the Homeowners Protection Act.
- Biweekly payments shave ~4 years off a 30-year mortgage
- $100/month extra can save $30,000+ in total interest
- FICO 680 → 760 can cut your rate by 0.5–0.75%
- Mortgage points: 1 point = 1% of loan, reduces rate ~0.25%; break-even ~3–4 yrs