Loan Comparison Tool - Compare Multiple Loans Side-by-Side Calculator
Free loan comparison tool & calculator. Compare multiple loan options side-by-side for lending companies, analyze monthly payments, total costs, and interest savings. Our calculator helps borrowers compare loan offers with comprehensive analysis of payment schedules, total interest, and potential savings to find the best financing option for mortgages, auto loans, and personal loans.
Last updated: October 19, 2025
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Loan 1
Loan 2
Best OptionComparison Results
Loan 1 Summary
Monthly
$1,580
Total Cost
$568,861
Interest
$318,861
Loan 2 Summary
Monthly
$2,247
Total Cost
$404,473
Interest
$154,473
Potential Savings
$164,388
by choosing Loan 2
Analysis:
Loan 2 is better based on total cost comparison.
Loan Comparison Tips:
- • Lower total cost = less paid over loan life
- • Lower monthly = better cash flow, but more interest
- • Shorter terms = faster payoff, less interest
- • Consider fees, closing costs, and prepayment penalties
Loan Comparison Calculator Types & Use Cases
Common Terms
15, 20, 30 Years
Compare fixed vs adjustable, different terms
Typical Terms
36, 48, 60, 72 Months
Find best rates from dealers, banks, credit unions
Rate Range
6% - 36% APR
Compare online lenders, banks, peer-to-peer
Benefits
Lower Rate, Single Payment
Compare federal vs private refinance options
Loan Types
SBA, Term, Line of Credit
Compare terms, rates, and repayment structures
Analysis
Savings vs Costs
Calculate breakeven point and total savings
Quick Example Result
Comparing $250K at 6.5% for 30 years vs 7.0% for 15 years:
Best Option
Loan 2
Potential Savings
$164,388
How Our Loan Comparison Tool Works
Our loan comparison tool calculates and compares key metrics for multiple loan options side-by-side. The calculation uses standard amortization formulas to determine monthly payments, total costs, and interest amounts, helping borrowers make informed financing decisions.
The Loan Payment Formula
Monthly Payment = P × [r(1 + r)^n] / [(1 + r)^n - 1]Where: P = Principal, r = monthly rate, n = number of paymentsTotal Cost = Monthly Payment × Number of PaymentsTotal Interest = Total Cost - PrincipalThe calculator computes monthly payment using the amortization formula, then calculates total cost by multiplying by the number of payments. It identifies the loan with lower total cost and shows potential savings. This helps borrowers understand not just monthly affordability but long-term financial impact.
Shows side-by-side comparison of monthly payments, total costs, and interest
Mathematical Foundation
Loan comparison is based on amortization mathematics from financial theory. The amortization formula calculates equal periodic payments that fully repay principal and interest over the loan term. Each payment includes both interest (on remaining balance) and principal reduction. Early payments are mostly interest; later payments are mostly principal. Comparing total cost reveals true long-term expense differences between loan options.
- Lower interest rates significantly reduce total cost over time
- Shorter loan terms have higher monthly payments but lower total interest
- Monthly payment impacts cash flow; total cost impacts wealth
- Small rate differences compound into large savings over decades
- Consider both payment affordability and total cost in decisions
- Factor in fees, closing costs, and prepayment options
Sources & References
- Truth in Lending Act (TILA) - Federal Reserve BoardFederal law requiring lenders to disclose APR for comparison
- Consumer Financial Protection Bureau - Loan Comparison ToolsGovernment resources for comparing financial products
- CFPB - Loan Shopping and Comparison GuideOfficial guidance on comparing loan offers
Need help with other financial calculations? Check out our business loan eligibility calculator and borrowing power calculator.
Get Custom Calculator for Your PlatformLoan Comparison Examples
Loan Options:
Loan 1: 30-Year Fixed
$250,000 at 6.5% for 30 years
Monthly: $1,580
Loan 2: 15-Year Fixed
$250,000 at 7.0% for 15 years
Monthly: $2,247
Comparison Analysis:
- Loan 1 total cost: $568,861
- Loan 2 total cost: $404,473
- Interest difference: $164,388
- Best option: Loan 2
Result: Loan 2 is better based on total cost comparison.
Savings: $164,388. Consider cash flow needs when choosing between lower monthly payment vs lower total cost.
Auto Loan Comparison
$30K at 5% (60 mo) vs 6% (48 mo)
Shorter term saves ~$1,000
Personal Loan Comparison
$20K at 10% (5 yr) vs 12% (3 yr)
Lower rate saves despite longer term
Frequently Asked Questions
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