Construction Loan Calculator - Estimate Your Construction Loan Payments 2025

Construction Loan Calculator

Estimate Your Construction Loan Payments & Plan Your Dream Home Build

Calculate both construction phase interest-only payments and permanent loan payments with our comprehensive construction loan calculator. Get instant estimates for your home building project.

Loan Details

Loan Summary

Construction Phase Payment

$0
Interest-only monthly payment

Permanent Loan Payment

$0
Principal & interest payment
Loan Amount
$0
Down Payment
$0
Construction Interest
$0
Total Interest
$0

Payment Breakdown

How to Use Our Construction Loan Calculator

1

Enter Construction Costs

Input the total estimated cost of your construction project, including materials, labor, permits, and contingency funds.

2

Set Down Payment

Specify your down payment percentage. Construction loans typically require 20-30% down payment.

3

Configure Interest Rates

Enter both construction phase and permanent loan interest rates. Construction rates are typically higher.

4

Select Construction Timeline

Choose your expected construction period, typically 6-18 months depending on project complexity.

5

Choose Permanent Loan Terms

Select the term length for your permanent mortgage (15 or 30 years) and corresponding interest rate.

6

Review Results

Analyze your construction phase interest-only payments and permanent loan payments with detailed breakdowns.

Pro Tips for Using the Calculator

  • Add 10-20% contingency to your construction cost estimate
  • Factor in land costs if purchasing separately
  • Consider additional costs like temporary utilities and permits
  • Account for potential construction delays in your timeline