Comprehensive tool to compute payments, interest rates, origination fees, and full amortization schedules
Provide the principal amount, interest rate, and repayment term above, then click Calculate.
Fill in the loan details in the calculator form and submit to view the complete schedule.
The total sum of money borrowed from the lender. This base amount determines all interest accruals and recurring payment amounts over time. Enter the full principal without commas or currency symbols.
The yearly percentage charged by the lender for borrowing the principal amount. Higher rates increase both your recurring payment and total interest cost. Typical mortgage rates range from 3% to 8% depending on market conditions and credit profile.
The total duration over which the loan must be repaid. Standard terms range from 15 to 30 years for conventional mortgages, or 3 to 7 years for personal and auto loans. Longer terms lower the periodic payment but increase total interest paid.
Determines how frequently payments are made (monthly, bi-weekly, or weekly). Selecting bi-weekly or weekly frequency increases the number of payments per year, accelerates principal payoff, and lowers overall interest accrued compared to monthly payments.
An origination or closing fee percentage charged by the lender at loan origination. It is calculated from the principal and added to the grand total cost. This fee does not change the regular periodic payment amount.
The regular recurring amount due every installment period. Each payment comprises both a principal reduction portion and an interest portion. This amount remains constant for fixed-rate loans throughout the entire term (except the final adjusted payment).
In early loan stages, a larger portion of each payment goes toward interest charges. Over time, as the remaining balance declines, a greater proportion applies toward principal reduction. This is the natural behavior of an amortizing loan.
The outstanding principal owed after deducting the principal portion of each payment. On the final payment period, this balance reaches exactly zero. Tracking the remaining balance helps you understand equity buildup over time.
The cumulative financial cost of the loan, combining all periodic payments made over the full term plus any initial origination fees. Comparing this figure against the original principal shows the true cost of borrowing.
The percentage of total payments that consists of interest rather than principal. A higher interest share indicates a more expensive loan relative to the amount borrowed. Shorter terms and higher payment frequencies generally reduce this percentage.