Construction Loan Calculator
Calculate construction loan interest and permanent mortgage payments. See draw schedule.
Total Project Cost
$450,000.00
Construction Interest
$17,850.00
Permanent Monthly Payment
$2,334.95
Construction Phase
| Loan Amount | $360,000.00 |
| Down Payment (20.0%) | $90,000.00 |
| Average Monthly Interest | $1,487.50 |
| Max Monthly Interest (full draw) | $2,550.00 |
| Total Construction Interest | $17,850.00 |
Draw Schedule
| Draw 1 (Month 1) — $60,000.00 drawn | $425.00/mo interest |
| Draw 2 (Month 3) — $120,000.00 drawn | $850.00/mo interest |
| Draw 3 (Month 5) — $180,000.00 drawn | $1,275.00/mo interest |
| Draw 4 (Month 7) — $240,000.00 drawn | $1,700.00/mo interest |
| Draw 5 (Month 9) — $300,000.00 drawn | $2,125.00/mo interest |
| Draw 6 (Month 11) — $360,000.00 drawn | $2,550.00/mo interest |
Permanent Loan & Total Cost
| Permanent Monthly Payment | $2,334.95 |
| Total Permanent Interest | $480,583.13 |
| Total All-In Cost | $948,433.13 |
| Extra Cost vs Buying Existing | $17,850.00 |
Use the Construction Loan Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
You might also need
Mortgage Calculator 2026 — Payment, Amortization & PMI
Calculate your monthly mortgage payment with taxes, insurance, PMI, and HOA. View full amortization schedule. Free, instant results based on current rates.
FHA Loan Calculator 2026 — MIP, Down Payment & Limits
Calculate FHA loan payments including upfront MIP (1.75%) and annual MIP premiums. See when MIP drops off. Free, instant results based on 2026 FHA limits.
Home Affordability Calculator — How Much House Can You Afford?
Find out how much house you can afford based on income, debts, down payment, and current mortgage rates. Free, instant results with DTI ratio breakdown.