If you’re wondering how much a loan might cost or what your monthly payments could be, a simple loan calculator can give you a clear answer in just a few clicks. Our easy-to-use tool lets you see how different loan amounts, interest rates, and repayment terms could affect your payments, so there are no surprises down the road.

Many people look for a loan when they need to cover unexpected expenses, manage bills, or invest in something important, but aren’t sure what fits their budget. Using a loan calculator can help you plan ahead, understand your options, and make smarter borrowing decisions without feeling overwhelmed.

With this insight, you’ll have a better picture of your financial situation and be able to choose a loan that works for you, keeping you on track and in control of your money.

To use our simplified loan calculator, fill in the data in the calculator below. Type in the principal of your loan, interest rate, loan term, and click on the ‘calculate’ button. 


Payment Plan

Your payment plan:
Total Loan Amount:
Total Interest:
Number of Payments:

How To Use CreditNinja’s Simple Loan Calculator

Using CreditNinja’s simple loan calculator is easy, and can help you get a better idea of what your loan repayment could look like. 

To use the CreditNinja loan calculator, simply: 

  1. Enter your desired loan amount. (CreditNinja offers loans ranging from $300 – $5,000.)
  2. Enter an APR. (These are fees that will affect your repayment amount. )
  3. Enter your desired loan term. (This is how long you want to take to pay off your loan.) 
  4. Enter your payment frequency. (This will usually be monthly.) 
  5. Hit “Calculate” to get your estimated payment plan! 

Your payment plan estimate will consist of:

  • Your total loan amount.
  • Your total interest. 
  • Number of payments it will take to pay off your loan.

General Info about Loans

Loans are an essential tool to help borrowers take large or small financial actions, such as catching up on bills, making car payments, or creating a little bit of financial wiggle room. Loan qualification is typically determined by both the borrower’s income and their perceived ability to repay.

To help better explain what our simple loan calculator does and how it establishes monthly payments, we break the payments down into two different crucial components – “principal” and “interest.”

Loan interest

Do you ever wonder how lenders are able to offer loans?  The answer is by charging interest and through other fees.  Think of interest as a particular service fee paid by borrowers to cover costs associated with loans.

Payments made by the borrower are comprised of two parts. The first part of the payment is allocated towards the actual balance, or, “principal.”  The second portion is allocated to the fees for service or the “interest.”   

While paying interest to borrow money is necessary, the underlying costs of interest aren’t always obvious.

For example, imagine you are paying off an installment loan. With installment loans, interest is accounted for in your monthly payment. Each payment includes a certain amount of both principal and interest.

The annual percentage rate (APR) will tell you what percentage in total over the principal you pay per year. It includes additional costs beyond the interest charges.

The raw interest cost is essentially an interest ‘rate’, whereas the APR includes additional fees. Some loans will require you to pay closing or finance costs, which aren’t technically included in your interest rate.  

Loan Principal

To put it simply, the Principal of a loan is the raw dollar amount you are borrowing.

While determining the principal is simple, deciding the amount you can realistically afford to pay back can be a little trickier. Determining the amount of principal you can comfortably borrow should entail taking the time to analyze your entire financial situation as well as advanced planning for any unforeseen expenses.

Payments are generally allocated first to cover the accrued interest charges, and then shifted to paying off your principal.  By reducing the principal, the interest charges will begin to decrease each month.

Loan term

How long would you like to repay your loan? 

A 5-year loan isn’t the same as a 15-year loan. 

While shorter loan terms do mean each payment is larger, they also mean less interest overall will be paid. Longer terms will lower the amount of money you pay per month but will come with a larger amount of overall interest paid over the entire life-span of your loan.

Repayment schedule

A repayment schedule is the frequency of your payments. Repayment can occur weekly, bi-weekly, or monthly, depending on your budget and the terms of your loan. 

Frequent payments typically carry less interest, so a weekly repayment schedule can save you some money. However, committing to a weekly payment may not work for your budget, so understanding the full scope of all of your financial obligations is important.

Repayment amount

When processing payments, typically first the interest and any fees owed are repaid and then the principal.

Interest is directly correlated to the principal of the loan, and it’s important to know how much of your payment is allocated to the interest and how much is allocated to the principal of the loan. 

CreditNinja’s Simple Loan Calculator can help you estimate all of your payments quickly and with ease. Please visit our Debt Repayment Calculator, Credit Score Simulator, and Amortization Calculator for more information and how to calculate your loan payments now.

Credit Tier Score Range Estimated APR
Excellent 781 - 850 5% - 8%
Good 661 - 780 8% - 14%
Fair 601 - 660 14% - 20%
Bad 300 - 600 20% - 36%

The interest rates, credit score ranges, and APR estimates shown above are illustrative only and do not represent guaranteed loan offers or actual lending terms. Actual rates and approval outcomes may vary based on factors such as credit history, income, loan type, lender criteria, and market conditions. Please consult directly with a lender for personalized rates and terms.

Loan Principal

To put it simply, the Principal of a loan is the raw dollar amount you are borrowing.

While determining the principal is simple, deciding the amount you can realistically afford to pay back can be a little trickier. Determining the amount of principal you can comfortably borrow should entail taking the time to analyze your entire financial situation as well as advanced planning for any unforeseen expenses.

Payments are generally allocated first to cover the accrued interest charges, and then shifted to paying off your principal.  By reducing the principal, the interest charges will begin to decrease each month.

Loan term

How long would you like to repay your loan? 

A 5-year loan isn’t the same as a 15-year loan. 

While shorter loan terms do mean each payment is larger, they also mean less interest overall will be paid. Longer terms will lower the amount of money you pay per month but will come with a larger amount of overall interest paid over the entire life-span of your loan.

Repayment schedule

A repayment schedule is the frequency of your payments. Repayment can occur weekly, bi-weekly, or monthly, depending on your budget and the terms of your loan. 

Frequent payments typically carry less interest, so a weekly repayment schedule can save you some money. However, committing to a weekly payment may not work for your budget, so understanding the full scope of all of your financial obligations is important.

Repayment amount

When processing payments, typically first the interest and any fees owed are repaid and then the principal.

Interest is directly correlated to the principal of the loan, and it’s important to know how much of your payment is allocated to the interest and how much is allocated to the principal of the loan. 

CreditNinja’s Simple Loan Calculator can help you estimate all of your payments quickly and with ease. Please visit our Debt Repayment Calculator, Credit Score Simulator, and Amortization Calculator for more information and how to calculate your loan payments now.