Real Estate Tool

Mortgage Comparison Calculator - Compare Mortgage Rates & Loan Options

Free mortgage comparison calculator & home loan comparison tool. Compare different mortgage options, evaluate loan terms, analyze monthly payments, and find the best home loan with comprehensive analysis. Our calculator helps homebuyers compare mortgage rates using side-by-side analysis of interest rates, terms, discount points, total costs, and monthly payments for optimal home financing decisions.

Last updated: October 19, 2025

Side-by-side mortgage comparison
Discount points analysis
Total cost comparison

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Mortgage Comparison Calculator
Compare multiple mortgage options to find the best deal

Property Details

Loan Amount: $320,000

Mortgage Option 1

1 point = 1% of loan amount

Mortgage Option 2

Best Option

1 point = 1% of loan amount

Comparison Results

Mortgage 1 Summary

Monthly Payment:$2,023
Total Interest:$408,142
Points Cost:$0
Total Cost:$728,142

Mortgage 2 Summary

Monthly Payment:$2,700
Total Interest:$166,062
Points Cost:$3,200
Total Cost:$489,262

Potential Savings

$238,881

by choosing Mortgage 2

Analysis:

Mortgage 2 offers better value with lower total cost.

Mortgage Comparison Tips:

  • • Lower total cost = best long-term value
  • • Lower monthly = better cash flow today
  • • Points reduce rate but cost upfront (1 point = 1% of loan)
  • • Shorter terms = more interest savings, higher payments

Mortgage Comparison Calculator Types & Home Loan Tools

15 vs 30 Year Mortgage Calculator
Compare short-term vs long-term mortgage options

Key Difference

Payment vs Interest

Balance affordability and savings

Fixed vs ARM Calculator
Compare fixed-rate vs adjustable-rate mortgages

Rate Types

Fixed, 5/1, 7/1 ARM

Evaluate rate certainty vs savings

Mortgage Points Calculator
Calculate break-even on discount points purchase

Break-Even

5-7 Years Typical

Determines if points are worthwhile

Mortgage Rate Comparison Tool
Compare rates from multiple lenders

Compare

3-5 Lenders

Find best rate and terms available

Refinance Comparison Calculator
Compare current mortgage vs refinance options

Analysis

Savings vs Costs

Determine if refinancing makes sense

Jumbo vs Conforming Mortgage
Compare jumbo and conforming loan options

Limit

$766,550 (2024)

Higher limits in expensive markets

Quick Example Result

Comparing $320K loan: 30-year at 6.5% vs 15-year at 6.0% with 1 point:

Best Option

Mortgage 2

Total Savings

$238,881

How Our Mortgage Comparison Calculator Works

Our mortgage comparison calculator analyzes multiple loan options side-by-side using standard amortization formulas. The calculation applies mortgage finance principles to compare monthly payments, total interest, and lifetime costs including discount points for comprehensive decision-making.

The Mortgage Comparison Formula

Monthly Payment = P × [r(1 + r)^n] / [(1 + r)^n - 1]
Where: P = Loan Amount, r = Monthly Rate, n = Payments
Total Cost = (Monthly × Payments) + Points Cost
Points Cost = Loan Amount × Points %

The calculator computes monthly payments using the standard amortization formula, then calculates total cost including interest and any discount points purchased. It compares both mortgages to identify which saves more money long-term, while also showing monthly payment differences for cash flow planning.

📊 Mortgage Comparison Chart

Shows side-by-side comparison of payments, interest, and total costs over loan life

Mathematical Foundation

Mortgage comparison is based on loan amortization mathematics from financial theory. Each mortgage payment includes both principal and interest, with early payments being mostly interest and later payments mostly principal. Comparing total cost reveals the true expense difference between options—a shorter term has higher monthly payments but dramatically lower total interest. Discount points add complexity: paying upfront (1 point = 1% of loan) reduces the rate by ~0.25%, requiring break-even analysis to determine if the upfront cost justifies long-term savings.

  • Lower interest rates significantly reduce total cost over 15-30 years
  • Shorter loan terms have higher payments but save tens of thousands in interest
  • Discount points require 5-7 years to break even typically
  • Monthly payment affects affordability; total cost affects wealth
  • Even 0.5% rate difference saves $30,000+ on typical mortgage
  • APR comparison accounts for rate and fees together

Sources & References

  • Consumer Financial Protection Bureau - Mortgage Shopping GuideOfficial guidance on comparing mortgage offers
  • Freddie Mac - Mortgage Rate Survey and TrendsWeekly national mortgage rate data and analysis
  • CFPB - Home Loan ToolkitStep-by-step guide to getting a mortgage

Need help with other mortgage calculations? Check out our closing cost estimator and PMI removal calculator.

Get Custom Calculator for Your Platform

Mortgage Comparison Examples

Home Mortgage Comparison Example
Comparing 30-year vs 15-year mortgage on $400,000 home

Mortgage Options:

Option 1: 30-Year Fixed

$320K at 6.5%, 0 points

Monthly: $2,023

Option 2: 15-Year Fixed

$320K at 6.0%, 1 point

Monthly: $2,700

Cost Comparison:

  • Option 1 total cost: $728,142
  • Option 2 total cost: $489,262
  • Interest savings: $242,081
  • Best option: Mortgage 2

Result: Mortgage 2 offers better value with lower total cost.

Total savings: $238,881. 15-year option builds equity faster and saves significantly on interest despite higher monthly payment.

With Points Example

6.5% no points vs 6.0% with 2 points

Break-even: ~7 years

ARM Comparison

30-year fixed 6.5% vs 7/1 ARM 5.75%

ARM saves if selling within 7 years

Frequently Asked Questions

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