Loan Calculator
Estimate monthly payments, total repayment, and total interest.
Before you trust the number
Estimate monthly payments, total repayment, and total interest.
Estimate monthly payments, total repayment, and total interest. When you need a payment estimate that connects one loan amount to the full repayment picture, not just a headline monthly number.
For mortgage, refinance, or personal-loan comparisons where term length and rate can change the interest burden more than expected. The result helps you compare affordability, total interest cost, and how many monthly payments you are committing to.
- Monthly, total, and interest summaries
- Zero-interest handling included
- Clear formula context for readers
Quick start with Loan Calculator
- 1 Enter the amount you plan to borrow, then set the annual interest rate and full repayment term.
- 2 Read monthly payment and total interest. A lower monthly payment is not automatically a cheaper loan.
- 3 Use the result to compare loan scenarios, then check salary or car-loan pages if the next decision is about budget fit or asset choice.
When to model the borrowing decision
When an offer quote needs to become monthly cash flow, full repayment cost, and term tradeoff.
- You are comparing mortgage, refinance, or personal-loan scenarios that quote different rates or terms against the same borrowing need.
- When a low monthly payment looks attractive but you need to see what that convenience costs over the full repayment period.
Which money assumptions drive the model
Rates, fees, shares, and term do most of the work.
Loan amount
Enter the amount you need to finance, not the total purchase price of the underlying asset unless you are borrowing that full amount.
Annual interest (%)
Use the quoted nominal annual rate for the loan.
Term (years)
The term determines how many equal monthly payments the calculator will model.
Do not mix months and years here. A 5-year loan is not the same as entering 5 months.
Which money output should guide the next move
Ignore the flashy number.
Monthly payment
The equal monthly payment required under a fixed-rate amortizing loan model.
Use monthly payment to test budget fit, but never read it without total interest beside it.
Total repayment
Principal plus every modeled payment across the full term.
This is the number to use when comparing long-term borrowing choices, especially when one option advertises a lower monthly payment.
Total interest
Interest cost over the full repayment schedule.
If total interest is surprisingly large, test shorter terms or lower rates before you assume the loan is still reasonable.
How to read the borrowing result
Read affordability, full cost, and term tradeoff separately.
- Monthly payment is the cash-flow number.
- If the payment feels manageable but total interest feels excessive, the loan may fit your month while still being weak as a long-term decision.
Finance examples that mirror real decisions
These examples mirror payment, pricing, and return decisions.
Model a 30-year home loan
Borrow $250,000 at 4.4% for 30 years.
- Loan amount: $250,000
- Annual rate: 4.4%
- Term: 30 years
- Monthly payment: $1,251.90
- Total repayment: $450,684.82
- Total interest: $200,684.82
The headline payment is about $1,251.90 per month, but the full interest cost exceeds $200,000 over the life of the loan.
Compare this with a 15-year or 20-year term before deciding that the lowest monthly payment is the best option.
Compare a short personal loan
Borrow $18,000 at 6.2% for 4 years.
- Loan amount: $18,000
- Annual rate: 6.2%
- Term: 4 years
- Monthly payment: $424.38
- Payment count: 48 payments
- Total interest: $2,370.38
This scenario produces a higher monthly payment than a longer loan, but the total interest burden stays far lower.
Use this output to decide whether you want lower monthly pressure or lower total borrowing cost.
Check a zero-interest installment plan
Spread $12,000 over 3 years at 0% interest.
- Loan amount: $12,000
- Annual rate: 0%
- Term: 3 years
- Monthly payment: $333.33
- Total repayment: $12,000.00
- Total interest: $0
This is the clean case where monthly payment is just principal divided by payment count, so it fits a simple budget check.
Verify whether fees, insurance, or deferred-interest clauses exist outside the quoted 0% rate.
Money mistakes that survive a clean formula
Wrong assumptions can survive perfect math.
- Treating the monthly payment as the only important number and ignoring the total interest burden.
- Mixing annual and monthly rates or entering the wrong term unit.
- Assuming the result already includes every fee, tax, insurance, or variable-rate adjustment from the real contract.
What to verify before you commit money
Check the live quote or contract before money moves.
- Check whether the product is fixed-rate or variable-rate.
- Include fees, insurance, taxes, or closing costs outside the formula when you estimate the true borrowing decision.
- Compare the result with monthly take-home pay or another investment alternative before you treat the loan as affordable.
Related calculators for the next money question
Use these when one money question turns into the next.
Car Loan Calculator
Open Car Loan Calculator when you want to see how the same borrowing logic changes once down payment and vehicle price become part of the decision.
Salary After-Tax Calculator
Use Salary After-Tax Calculator when the next question becomes whether your take-home pay can support the monthly payment you just calculated.
Stock Return Calculator
Open Stock Return Calculator when you want to compare the cost of borrowing against the return you expect from another use of the same capital.
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