What Is a Payment Calculator?
This general-purpose payment calculator finds your recurring payment for any fixed-rate loan, letting you choose monthly, bi-weekly, or weekly payment frequency — useful for any loan type where you know the amount, rate, and term.
How to Use the Payment Calculator
- Enter the loan amount.
- Enter the annual interest rate.
- Choose your payment frequency.
- Enter the loan term in years.
Payment Formula
Worked Example
Monthly payment: approximately $396
Total paid over 5 years: approximately $23,760
Total interest: approximately $3,760
Understanding Your Results
Switching to bi-weekly or weekly payments (with the same annual rate) generally results in slightly lower total interest, since you're paying down principal more frequently — some borrowers use bi-weekly payments specifically to pay off loans faster.
Common Mistakes to Avoid
- Forgetting to convert the annual rate into the correct periodic rate matching your payment frequency.
- Assuming bi-weekly payments automatically halve your payment — the periodic rate and total number of payments also change.
Frequently Asked Questions
Using the standard amortization formula based on the loan amount, periodic interest rate, and total number of payments over the loan term.
It can — bi-weekly payments result in more frequent principal reduction and effectively one extra monthly-equivalent payment per year (26 bi-weekly payments = 13 months' worth), which can reduce total interest and payoff time.
Any fixed-rate installment loan — personal loans, auto loans, or similar loans with a fixed rate and term.
Divide the annual rate by the number of payments per year (12 for monthly, 26 for bi-weekly, 52 for weekly).
The same core formula applies, though mortgages often have additional considerations like property taxes and insurance not included in a basic payment calculation.