Penglab Loan Calculator

Loan Repayment Calculator

Estimate monthly payments for mortgages and loans.

Loan Amount

Annual Interest Rate (%)

Loan Term (Years)

Repayment Mode

Result

// Loan repayment estimate will appear here

Quick guide

What this tool does

Estimate monthly payments for mortgages, car loans, amortizing loans, and interest-only loans with total repayment and total interest figures.

How to use it

Enter the loan amount, rate, term, and repayment mode to estimate monthly payment, total repayment, and total interest.

When this tool is useful

Estimate mortgage payments and total interest for home loans. Compare car loan monthly payments against other repayment scenarios. Check amortization-style principal-and-interest repayment against interest-only structures.

Common use cases

Estimate mortgage payments and total

Estimate mortgage payments and total interest for home loans.

Compare car loan monthly payments

Compare car loan monthly payments against other repayment scenarios.

Check amortization-style principal-and-interest repayment against

Check amortization-style principal-and-interest repayment against interest-only structures.

Example input and output

Example input

Loan amount: 300000
Rate: 4.2%
Term: 30 years
Mode: Mortgage / Amortizing

Expected output

Monthly payment: 1,467.71
Total interest: 228,376.00

FAQ

Which repayment modes are included?

The calculator supports amortizing monthly repayments and interest-only monthly payments, so it can be used for mortgages, car loans, and general loan interest checks.

Does the interest-only mode include the final principal payment?

Yes. The output shows the monthly interest payment, the remaining principal due at the end, and the total cash outflow over the full term.

Does Loan Calculator run in the browser?

Yes. Loan Calculator works in the browser so you can enter data, review the result, and copy the output without needing a separate desktop app.

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