Side-by-Side Loan Calculator

Worked example

Example: comparing $25,000 / 5-year loans—Loan A at 8% is $506.91/month vs Loan B at 6.5% at $489.15/month, saving $17.76/month on the lower offer.

When to use this

• You need a quick side by side loan calculator estimate.
• You are comparing offers or scenarios side by side.
• You prefer browser tools that do not require an account.

Common examples

• $20k at 9.9%/48 mo vs 11.5%/36 mo—compare total interest.
• Same APR: 60 vs 36 months payment vs cost tradeoff.
• Add origination fee into amount financed on both sides.
• Personal loan vs consolidation offer side by side.
• Pick the lower total cost, not only the lower payment.

Common mistakes

• Mixing annual and monthly rates or terms.
• Forgetting taxes, insurance, or fees that change the real total.
• Treating estimates as guaranteed quotes from lenders or employers.

How it works

Compares two installment loans side by side using standard amortization: monthly payment, total interest, and total cost for each offer so you can choose on total cost—not payment alone.

Limitations

Results are estimates for educational purposes and are not financial or tax advice. Actual costs, rates, and rules vary.

Privacy and file handling

Your data stays on your device and is not uploaded.

Formula or method

PMT = r × L / (1 − (1 + r)^−n) for each loan. Total interest = (payment × n) − principal.