Finance & Investment
Loan Amortization Calculator
Loan Amortization Calculator is a browser-based calculator tool on CalcToolsBase. See the EMI plus a month-by-month amortization schedule of interest, principal, and balance. To use it, enter your values and view the result directly in your browser — no signup and nothing to install.
Loan Amortization Calculator turns your loan amount, annual interest rate and loan term into a clear figure with the supporting breakdown using standard financial formulas. The maths runs locally, so nothing you enter leaves the page.
About this calculator
Loan Amortization Calculator is built to run the numbers on a money decision without a server round-trip. Provide your loan amount, annual interest rate and loan term and it uses standard financial formulas to produce a clear figure with the supporting breakdown, instantly and entirely in your browser, which makes it handy for quick checks and repeat runs.
Because interest is charged on the outstanding balance, early payments are mostly interest and the principal portion grows over time until the balance reaches zero.
How to use
- Enter the loan amount.
- Enter the annual interest rate to amortize.
- Enter the loan term in years.
- Press Calculate to see the EMI and amortization schedule.
Why use Loan Amortization Calculator
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Educational
Uses simplified financial formulas for educational estimates. Results may not include fees, taxes, insurance, lender rules, penalties, or credit decisions.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Clear about the method used and its limits, with disclaimers where they matter.
Common uses
Loan Amortization when working out a loan EMI
Loan Amortization when planning a new borrowing
Loan Amortization when comparing fixed and floating rates
Loan Amortization for total interest over the term
Loan Amortization for comparing loan offers
Loan Amortization for a quick EMI estimate
Technical notes
Loan Amortization Calculator builds an amortisation schedule from the reducing-balance EMI E = P·r·(1+r)^n / ((1+r)^n − 1), splitting each instalment into interest (balance × monthly rate) and principal.
Figures assume the rate and amounts you enter stay fixed and exclude fees, taxes and charges unless a field asks for them.
Results are rounded for display; the underlying calculation keeps full precision.
FAQ
What is an amortization schedule?
It is a month-by-month breakdown showing how each payment splits between interest and principal, and how the balance falls to zero over the term.
Why is early interest higher than principal?
Interest is charged on the outstanding balance, which is largest at the start. Early payments are mostly interest, and the principal portion grows over time.
How many rows does this show?
It shows the EMI and totals plus the first 12 months of the schedule, with a note of how many months remain for longer loans.
Does the Loan Amortization Calculator send my data to a server?
No. The Loan Amortization Calculator runs entirely in your browser — your inputs never leave your device, and nothing is uploaded or stored.
Worked example
On a 100,000 loan at 12% (1%/month), the first EMI of 8,884.88 splits into 1,000 interest and 7,884.88 principal; the interest share falls each month.