How do I calculate interest on my loan?

Asked by: Leila Oberbrunner  |  Last update: February 20, 2026
Score: 4.6/5 (49 votes)

How To Calculate Interest On A Loan
  1. Key Takeaways: ...
  2. Principal loan amount x interest rate x loan term = total interest. ...
  3. Total amount owed / number of monthly payments = monthly payment amount. ...
  4. $40,000 x 0.06 x 5 = $12,000. ...
  5. $52,000 / 60 = $867 per month. ...
  6. Principal balance x interest rate = annual interest amount.

What is 6% interest on a $30,000 loan?

For example, the interest on a $30,000, 36-month loan at 6% is $2,856. The same loan ($30,000 at 6%) paid back over 72 months would cost $5,797 in interest. Even small changes in your rate can impact how much total interest amount you pay overall.

How do you calculate exact interest on a loan?

Interest formula for simple interest: I = Prt where I is the total amount of interest accrued; over t time periods at a simple interest rate, r, and where the original amount invested or borrowed is P. Principal: The principal is the original amount invested or borrowed.

How do you calculate interest on a loan account?

Formula for Interest Calculator
  1. Simple Interest. The simple interest rate formula is as follows: A = P (1+rt) where, A = Total repayment amount of the loan. ...
  2. Compound Interest. Here's the formula used for computing compound interest: A = P(1 + r/n)nt where, A = Total repayment amount of the loan. ...
  3. EMI Interest.

How much is 26.99 APR on $3000?

How much is 26.99 APR on $3,000? An APR of 26.99% on a $3,000 balance would cost $67.26 in monthly interest charges.

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19 related questions found

How do I calculate APR on a loan?

APR formula

You can calculate APR using this formula: APR = (((Interest + Fees ÷ Loan amount) ÷ Number of days in loan term) x 365) x 100.

How to manually calculate interest on a loan?

Formula for calculating simple interest

You can calculate your total interest by using this formula: Principal loan amount x Interest rate x Loan term in years = Interest.

How to calculate interest on a personal loan?

How do banks calculate EMI for personal loans? The banks consider the interest rate, principal amount, and tenure. The standard formula for calculating the EMI amount is: EMI = [P x R x (1+R) ^N]/[(1+R) ^N-1], wherein P is principal, R is the rate of interest, and N is the number of instalments.

What is the simple interest formula for a loan?

Simple Interest is calculated using the following formula: SI = P × R × T, where P = Principal, R = Rate of Interest, and T = Time period.

What is the formula for calculating interest?

The formula for calculating simple interest is A = P x R x T.
  1. A is the amount of interest you'll wind up with.
  2. P is the principal or initial deposit.
  3. R is the annual interest rate (shown in decimal format).
  4. T is the number of years.

How to calculate monthly payment on a loan?

How to Calculate Monthly Loan Payments
  1. If your rate is 5.5%, divide 0.055 by 12 to calculate your monthly interest rate. ...
  2. Calculate the repayment term in months. ...
  3. Calculate the interest over the life of the loan. ...
  4. Divide the loan amount by the interest over the life of the loan to calculate your monthly payment.

How do you calculate real interest on a loan?

A “real interest rate” is an interest rate that has been adjusted for inflation. To calculate a real interest rate, you subtract the inflation rate from the nominal interest rate. In mathematical terms we would phrase it this way: The real interest rate equals the nominal interest rate minus the inflation rate.

How do you calculate average interest on a loan?

To calculate the weighted average interest rate of all your loans, multiply each loan amount by its interest rate. Add the results together, then divide that number by the sum of all your loan balances. Whatever that figure is, round up to the nearest 1/8 of a percent.

How much would a $3,000 loan cost per month?

The monthly payment on a $3,000 personal loan will depend on the loan term and the interest rate. For example, the monthly payment on a two-year $3,000 loan with an annual percentage rate (APR) of 12% would be $141.22. The monthly payment on a $3,000 loan with a six-year term and an APR of 12% would be $58.65.

What is the 3% interest of $30,000?

The first step is to divide 30,000 by 100 to determine the value of one percent of 30,000. The second step is to multiply 300 by 3 to get the value of three percent of 30,000. This means that 900 is 3% of 30,000.

What is the normal interest rate on a personal loan?

The average personal loan interest rate is 26.25%. That's based on four weeks of data from 17 lenders and the rates they quoted to approximately 72,000 potential borrowers between Dec. 1-31, 2024.

Can I close my personal loan early?

Full Prepayment: Usually, Personal Loans have a lock-in period of 6-12 months before which you cannot preclose them. A complete Personal Loan preclosure allows you to enjoy a reduced interest cost and relieves your debt burden. However, it could cost heavily since you must pay a lump sum from your pocket.

How do you calculate effective interest rate on a personal loan?

The steps to calculate the effective interest rate are as follows:
  1. Step 1 ➝ Determine the Nominal Interest Rate (i) and Compounding Frequency.
  2. Step 2 ➝ Divide the Nominal Interest Rate (i) by the Total Number of Compounding Periods (n)
  3. Step 3 ➝ Add One to the Resulting Figure (i ÷ n)

How do you manually calculate interest on a personal loan?

EMI = [P x R x (1+R) ^N]/ [(1+R) ^N-1] P here is the principal amount, R the rate of interest charged, and N is loan tenure. Enter the values of P, R and N in the above formula to compute your monthly EMI.

What will help someone get a lower interest rate on a loan?

Here are seven ways you may be able to lower your interest rate and reduce mortgage payments, both at signing and during your loan term.
  • Shopping for mortgage rates. ...
  • Improving your credit score. ...
  • Considering your loan term. ...
  • Making a larger down payment. ...
  • Buying mortgage discount points. ...
  • Locking in your mortgage rate.

How to calculate monthly interest on a loan?

Divide your interest rate by the number of payments you make per year. Multiply that number by the remaining loan balance to find out how much you will pay in interest that month.

Can you pay a loan off early?

Yes, you can pay off your loan early by making larger monthly payments or settling the full balance at once. This can save you money on interest and reduce debt, but it's important to investigate potential downsides first.