Recently, a friend asked me that he was going to borrow money from the mobile phone bank. There are repayment methods such as interest before principal, equal principal and interest. I wonder how to calculate the interest.

Take the loan of 654.38 million yuan as an example, with a term of one year (654.38+02 months) and an annual interest rate of 4.6%:

1, if calculated from the absolute amount of interest, the interest of equal principal repayment is the least.

(1) interest before principal, one-year interest 1000004.6%=4600 yuan, monthly interest = 4600 yuan/12 = 383.33 yuan, and the principal will be repaid after one year.

(2) the average capital method, because the principal is repaid every month, the returned principal no longer bears interest, so the interest returned every month is reduced. Monthly repayment of principal:100000/12 = 8333.33 yuan. The interest paid in the first month:1000004.6%/12 = 383.33 yuan, and the total principal and interest paid in the first month: 8333.33383.33=87 16.66 yuan. Interest paid in the second month: (10000-8333.33) 4.6%/12 = 351.39 yuan, total principal and interest paid in the second month: 8333.438+0.39 = 8684.72 yuan. By analogy, the total interest for one year is 249 1.67 yuan.

(3) Matching principal and interest, that is, repaying the same amount of loans (including principal and interest) every month, is calculated by the annuity discount method. Because the calculation process is complicated, the loan calculator is directly used to calculate, and the monthly repayment is 8542.43 yuan, and the annual total interest is 2509. 14 yuan.

How much is the loan of 65438+ 10,000 yuan a year (how to calculate the actual interest of the loan? )

2. If calculated from the actual annualized loan interest rate, the actual annualized interest rate in this way is the lowest.

(1) Interest before this method: Since the principal is repaid after one year, the principal equivalent to 654.38 million yuan has been used for one year, and the actual annualized interest rate is 4.6% of the nominal interest rate.

(2) The average capital and equal principal and interest method, due to the monthly repayment of the principal, the actual use time of the principal of 654.38 million yuan is less than one year. Taking the average capital as an example, the monthly principal repayment is 8333.33 yuan. It is equivalent to 8,333.33 yuan a month, 16.67 yuan for two months, 25,000 yuan for three months, and so on. Because the calculation formula of the actual annualized interest rate is complicated, the process is not listed. The calculated actual interest rate is about twice the nominal interest rate, and 4.6%2=9.2%.

How much is the loan of 65438+ 10,000 yuan a year (how to calculate the actual interest of the loan? )

3. Comparison of repayment methods.

(1) Interest before principal: the total interest is the highest (4,600 yuan), the monthly repayment amount is the smallest, the actual annualized rate is the lowest, and the debt repayment pressure is concentrated in the last period.

(2) Average capital: the total interest is the lowest (249 1.67 yuan), the monthly repayment amount is decreasing, and the actual annualized interest rate is high. If the loan is used for business, it is necessary to measure whether the rate of return is higher than the actual annualized rate.

(3) Equal principal and interest: the total interest is in the middle (2509.438+04 yuan), the monthly repayment amount is equal, and the actual annualized interest rate is high. If the loan is used for business, it is necessary to measure whether the rate of return is higher than the actual annualized rate.

How to calculate the actual annual interest rate of a loan with a loan calculator?

You multiply the interest rate of 3. 1 by one year 12 and 4.2 by the interest rate of 36 years. So that's it.

For the convenience of understanding, we use elementary school mathematics calculation. You can explain it to any relative who thinks that he has taken advantage of the bank in this way.

For the convenience of calculation, suppose you borrow 1200 yuan, and the annual interest rate is 5%, then you have to repay it in 12 installments 1260 yuan, and each installment is 105 yuan.

At this time, let's change our thinking. We don't have to think of it as a one-time loan 1200, but as 12 times. Every loan 100 yuan is the same thing.

One is 100 after one month, the other is 100 after two months and the other is 100 after three months. ...........

The last payment is 100, and it will be repaid one year later 105 yuan, with an annual interest rate of 5%, which is very good.

The first payment is 100 yuan, and the repayment is 105 yuan after one month, with a monthly interest rate of 5%, so the annual interest rate is naturally multiplied by 12, which is equal to 60%.

There is a 100 in the middle, which is 105 yuan after half a year, with a half-year interest of 5%. Then the annual interest rate should be multiplied by 2, which is equal to 10%.

Every 100 yuan is calculated in this way, and we get different interest rates of 12. Add them up and divide them by 12, and we get the real interest rate.

namely

(interest rate 12/ 12 interest rate 1 1 2/10 .......... interest rate12/1)//kloc-0.

= interest rate (12/12112/10 ..........12/1)/kloc-0.

= interest rate (1121111...1)

Take out your calculator and do the math.

Three years and five years are the same, just press the calculator a few times.

However, even with such an easy-to-understand calculation, too many people still don't understand that they still have to borrow money from banks at an annualized interest rate of 20% and then lend it at an interest rate below 20%.

The annualized interest rate of mortgage loan is 5. 135, and the loan is 500,000 yuan. How much is the monthly interest?

Interest = principal interest rate, number of interest-bearing periods. If you borrow 500,000 yuan, 1 month, the annual interest rate is 5. 135%, and the corresponding interest at maturity is 5,000,005.135%/12 = 2139.58 yuan.

How to use interest calculator in private lending?

Can the interest calculator of private lending work out how much it is still? Yes, this is the role of the interest calculator for private lending. So what is the role of the interest calculator for private lending and how to use it?

Let me show you one:

First of all, find a private loan interest calculator, which is available on general loan platforms and loan websites. Choose what you like. Here are the choices, which seem simple and clear:

Then enter the amount you want to borrow, the expected annualized interest rate and other information:

Click to start calculation, and the result will come out immediately:

The civil loan interest calculator used here adopts the "equal principal and interest repayment method", that is, the borrower repays the loan principal and interest with the same amount every month, which is also the method adopted by the bank mortgage.

With the interest calculator, you can calculate the total cost of the loan, including the monthly repayment amount and the expected annualized interest rate. At the same time, a complete repayment schedule can help you better understand the repayment situation, so that you can know exactly how to repay before borrowing.

Private lending can have interest or no interest, mainly depending on the agreement between the two parties at the time of lending, based on evidence. If the two sides negotiate to determine the expected annualized interest rate, then the interest calculator of private lending can be of great use. When we agree on interest in private lending, we can use the interest calculator of private lending to calculate it first.

Bank of China loan interest rate calculator

Please pay attention to the official account of "Bank of China Micro-Banking" WeChat, select the function of "Microfinance-Function Hall-Financial Tools and Information Inquiry-Loan Calculator" in the menu below, and enter the calculation conditions according to the page prompts for inquiry.

The above contents are for your reference. Please refer to the actual business regulations.

Calculator formula of loan annualized interest rate

Interest is equal to the loan amount multiplied by the number of years multiplied by the annual interest rate.

The formula of the loan annualized interest rate calculator is that the interest is equal to the loan amount multiplied by the number of years multiplied by the annual interest rate. If the loan is 654.38 million yuan, the term is 1 year, and the annual interest rate is 4.35%, then the interest to be repaid is 4350 yuan.

Loan means that banks, credit cooperatives and other institutions lend money to units or individuals who use money, and generally agree on interest and repayment date. Loans in a broad sense refer to loans, discounts, overdrafts and other borrowing funds.

Introduction of so many annualized loan interest rate calculators.