Loan Comparison Calculator
Compare up to 3 loans side by side — see which one saves you the most in monthly EMI and total interest.
About this tool
A side-by-side loan comparison tool that lets you enter 2 or 3 loan scenarios with different amounts, rates, and terms. Instantly see the monthly EMI, total payment, total interest, and interest-to-principal ratio for each. The best values get a star marker, and a visual bar chart shows how principal and interest stack up.
How to use it
Quick steps to get the most out of this utility.
- 1
Enter loan details
Fill in the amount, interest rate, and term for each loan scenario you want to compare.
- 2
Adjust currency
Pick your currency using the selector in the top-right corner. All values update automatically.
- 3
Compare results
The table shows EMI, total interest, total payment, and interest ratio. Stars mark the cheapest option per metric.
- 4
Read the insight
The Key Insights card highlights the biggest savings opportunity and the EMI difference between options.
Why comparing loans matters
A 1% difference in interest rate or a 5-year difference in term can change your total interest by tens of thousands. Side-by-side comparison makes the real cost visible — not just the monthly EMI, but the total amount you hand over to the lender over the full loan term.
EMI vs total interest: the trade-off
Longer terms reduce your monthly EMI but dramatically increase total interest. For example, on a ₹10 lakh loan at 9%: a 15-year term costs ₹10.13 lakh in interest, while a 20-year term costs ₹14.46 lakh — that's ₹4.33 lakh more just for extending 5 years. The monthly EMI drops from ₹10,143 to ₹8,997, but you pay significantly more over time. This calculator shows both numbers so you can make an informed trade-off.
Interest-to-principal ratio explained
The interest-to-principal ratio tells you how much interest you pay for every rupee of principal. A ratio of 85% means you pay 85 paise in interest for every rupee borrowed. Use this metric to compare loans fairly when the borrowed amounts differ — a lower ratio always means a cheaper loan relative to what you borrowed.
When to pick the lowest EMI vs the lowest interest
- Pick lowest EMI when: Cash flow is tight, you have other financial obligations, or you plan to prepay aggressively in the first few years.
- Pick lowest total interest when: You can comfortably afford the higher EMI, you value total savings over monthly convenience, or you plan to hold the loan for its full term.
- Refinancing opportunity: If the lowest-EMI loan has a higher rate, consider starting with it for cash-flow flexibility, then refinancing to the lowest-rate option once you can handle the higher EMI.
Frequently asked questions
How do I compare two or three loans side by side?+
Enter each loan's amount, interest rate, and term in its own column. The comparison table and bar chart update live, showing monthly EMI, total interest, and total payment for each. The best values are marked with a star.
Should I choose the loan with the lowest EMI or lowest total interest?+
It depends on your priority. Lowest EMI gives you cash-flow flexibility but usually costs more in total interest (longer term). Lowest total interest saves money overall but requires higher monthly payments. Use this calculator to see both numbers for each option before deciding.
How is EMI calculated for each loan?+
EMI uses the standard amortization formula: EMI = P × r × (1+r)^n ÷ ((1+r)^n − 1), where P is principal, r is monthly interest rate (annual rate ÷ 12 ÷ 100), and n is total months. This is the same formula banks use.
What does "interest-to-principal ratio" mean?+
It shows how much interest you pay relative to the amount borrowed. A ratio of 85% means you pay 85% of the loan amount as interest over the full term. Higher ratios mean the loan costs more relative to what you borrowed — often the case with long-tenure, high-rate loans.
Can I compare loans with different amounts?+
Yes. The comparison table shows all metrics side by side regardless of amount. However, the "best" markers (★) compare the absolute numbers, so a smaller loan will always have a lower EMI. For fair rate comparisons when amounts differ, focus on the interest-to-principal ratio column.
Does this account for prepayment or variable rates?+
This calculator uses fixed-rate, no-prepayment assumptions. For prepayment scenarios, use the EMI Calculator. For variable-rate comparisons, model the initial fixed period here and note that rates may change after that period.
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