Monthly Loan Calculator – Free Payment, Interest & Amortization Schedule

Use this monthly loan calculator to estimate your payment, total interest, and view a complete amortization schedule. Supports three loan types — amortized loans (like mortgages, auto loans, personal loans), deferred payment loans, and bonds. Choose your compound and payback frequency, add extra payments, and see exactly how your loan works. No sign‑up required — all calculations happen right in your browser.

💼 Loan Type
$
years months
%
$
$
$
Amortized Loan Summary
Payment Every Period
Total of All Payments
Total Interest
💰 Extra Payment Impact
Time saved: Interest saved: Early payoff:
Principal vs. Interest
Balance Over Time
📋 Amortization Schedule
PeriodPaymentPrincipal InterestExtraBalance
$
years months
%
Deferred Payment Loan Summary
Amount Due at Maturity
Total Interest
Principal vs. Interest
$
years months
%
Bond / Zero‑Coupon Loan Summary
Amount Received Today
Total Interest
Received vs. Interest
🔒 All calculations run locally in your browser. No data is ever uploaded or stored — total privacy. This is a monthly loan calculator no sign up required.

How to Use This Monthly Loan Calculator

This free monthly loan calculator helps you understand exactly what your loan will cost. Just enter your loan amount, interest rate, and term — the calculator does the rest. You'll see your periodic payment, total interest, and a complete amortization schedule. Whether you need a personal loan monthly payment calculator, an auto loan monthly payment calculator, or a mortgage monthly payment calculator, this tool covers all your borrowing needs.

Three Loan Types Explained

  • Amortized Loan. The most common type — mortgages, auto loans, student loans, and personal loans all fall into this category. You make regular, fixed payments that cover both principal and interest until the loan is paid off. This amortized loan monthly calculator shows every payment in detail.
  • Deferred Payment Loan. No periodic payments — interest accrues over time, and you pay a single lump sum at maturity. Common for short‑term commercial loans or balloon loans. This deferred loan calculator shows how much you'll owe at the end.
  • Bond / Zero‑Coupon. You decide the amount you want at maturity, and the calculator shows how much money you'd receive today — essentially, bonds sold at a discount. This is a bond loan calculator for zero‑coupon bonds.

Why Use This Monthly Loan Payment Calculator?

  • No registration. A true monthly loan calculator no sign up required. Start calculating immediately.
  • Three loan types. Amortized loans, deferred payment loans, and bonds — all in one tool. This free monthly loan calculator handles every fixed‑rate borrowing scenario.
  • Flexible compound and payback. Choose from daily to continuous compounding, and daily to yearly payback frequencies. Most online monthly loan calculators only offer monthly — this one lets you match your actual loan terms.
  • Full amortization schedule. See every period broken down into principal, interest, extra payments, and remaining balance. Export as CSV for Excel or Google Sheets.
  • Extra payment simulation. Add monthly, yearly, or one‑time extra payments to see how much faster you'll pay off the loan. A powerful loan repayment calculator with extra payments feature.
  • Visual charts. Principal‑vs‑interest pie chart and balance‑over‑time line graph for every calculation.
  • 100% private. All math happens in your browser. Nothing is sent to any server.

How Monthly Loan Payments Are Calculated

For amortized loans, this calculator uses the standard formula: M = P × [i(1+i)ⁿ] ÷ [(1+i)ⁿ − 1]

Where M is your periodic payment, P is the loan principal, i is the periodic interest rate, and n is the total number of payments. The periodic rate depends on both the compound frequency and payback frequency you select. For deferred payment loans and bonds, the calculator uses compound interest formulas: FV = PV × (1 + r)ⁿ for discrete compounding, or FV = PV × e^(rt) for continuous compounding.

Step by Step

  1. Choose your loan type. Click one of the three tabs — Amortized Loan, Deferred Payment, or Bond.
  2. Pick a loan category (optional). Select personal, auto, student, or mortgage. The math is the same for all — this just helps you stay organized.
  3. Enter your loan amount. Type in the total amount you plan to borrow (or the maturity amount for bonds).
  4. Set your loan term. Enter the number of years and months for repayment.
  5. Input your interest rate. Enter the annual percentage rate quoted by your lender.
  6. Select compound and payback frequency. Choose how often interest compounds and how often you make payments.
  7. Add extra payments (optional). Include monthly, yearly, or one‑time extra payments to see the savings.
  8. Click "Calculate". Results appear instantly with charts and a detailed amortization table.

Frequently Asked Questions

Q: Is this monthly loan calculator really free?

A: Yes, 100% free. No sign‑up, no hidden costs. Calculate as many loan scenarios as you need — this is a truly free monthly loan calculator with no strings attached.

Q: What loan types can I calculate monthly payments for?

A: The amortized tab works for any fixed‑rate installment loan — personal loans, auto loans, student loans, and mortgages. It's a versatile monthly loan payment calculator for all your borrowing needs. The deferred and bond tabs handle lump‑sum and zero‑coupon scenarios.

Q: What does compound frequency mean?

A: Compound frequency is how often interest is calculated and added to your balance. Monthly compounding (APR) is the most common for consumer loans. More frequent compounding — like daily or continuous — results in slightly higher total interest costs. This monthly loan calculator with compound interest lets you match your actual loan terms.

Q: Can I see a full amortization schedule?

A: Yes. After calculating an amortized loan, click "View Amortization Table" to see a complete breakdown of every payment, showing principal, interest, extra payments, and remaining balance. You can toggle between period‑by‑period and yearly summaries, and export as CSV.

Q: How do extra payments affect my loan?

A: Extra payments go directly to your principal, reducing your balance faster. Your regular payment stays the same, but the loan pays off sooner — and you save on total interest. This monthly loan repayment calculator free feature shows exactly how much you can save.

Q: Is my data stored or shared?

A: Never. Everything runs locally in your browser. No loan details are ever uploaded or saved on any server. Your privacy is guaranteed.

Learn how to use this tool correctly by reading our step-by-step tutorial.

View Detailed Tutorial →