🏦 Loan Calculator
How It Works
Calculate monthly loan payments, total interest, and amortization schedule for any loan type. Use Loan Calculator to explore how the main financial inputs change the payment, cost, return, or cash-flow result before making a decision.
The result is most useful when the inputs match the definitions used by this calculator. For this tool, the underlying method is: Monthly Payment = P × [r(1+r)^n] / [(1+r)^n - 1], where P = principal, r = monthly rate, n = number of payments. Compare the output with the worked example, then change one meaningful input at a time to see how the result responds.
What Is Loan?
A loan is money borrowed from a lender and repaid over time, usually with interest. A loan calculation connects the principal, interest rate, repayment period, and payment schedule.
How to interpret the result: Compare the output with the worked example and with another scenario using the same definitions. For this calculator, the key relationship is Monthly Payment = P × [r(1+r)^n] / [(1+r)^n - 1], where P = principal, r = monthly rate, n = number of payments.
How to Calculate Loan
The page uses the method shown in the Formula section: Monthly Payment = P × [r(1+r)^n] / [(1+r)^n - 1], where P = principal, r = monthly rate, n = number of payments. Keep the inputs in matching units, then change one meaningful input at a time when testing scenarios.
Important limitation: The displayed payment is a mathematical estimate. Lender fees, insurance, taxes, variable rates, and other charges may change the actual cost. Review the loan inputs and units before relying on the result.
Monthly payment vs total borrowing cost
The scheduled payment tells you what you may pay each period under the assumed terms. Total interest shows how much borrowing costs over the full repayment period, before fees and other charges.
How tenure changes a loan
Increasing the term usually lowers the periodic payment but gives interest more time to accrue. Comparing two terms side by side can make the trade-off easier to see.
What a loan calculator does not know
Actual lender pricing can include processing fees, insurance, taxes, variable rates, penalties, and contractual rules that are not represented by a basic amortization formula.
When to Use This Calculator
Use Loan Calculator to explore how the main financial inputs change the payment, cost, return, or cash-flow result before making a decision.
Practical tip: For this Loan Calculator, change one financial assumption at a time—such as the rate, amount, contribution, fee, or tenure shown in the inputs—so you can see which factor drives the result.
Formula
Monthly Payment = P × [r(1+r)^n] / [(1+r)^n - 1], where P = principal, r = monthly rate, n = number of payments
Example
A $50,000 loan at 7% annual interest for 5 years has a monthly payment of approximately $990. Use the calculator to test a second scenario and see how the result changes when one important assumption is adjusted.