Calculate loan payments with this simple tool
Summary:
- A loan payment calculator is a valuable tool that estimates your monthly loan payments based on the loan amount, interest rate and loan term.
- Using a loan payment calculator before taking out a loan can help you compare different loan scenarios to determine what kinds of options will fit your needs.
- The calculator can help you understand the split between principal and interest each month, total interest paid, and the total cost of borrowing. Knowing these details can help you make better financial decisions and help you choose the right loan option for you.
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Taking out a loan is a big financial decision—and understanding what it might cost is an important first step. With so many terms, rates, and repayment options to consider, it’s easy to feel overwhelmed. That’s where our loan payment calculator comes in.
For a multitude of different loan types (more on that below), this easy-to-use TransUnion® tool can help you estimate your monthly payments, total interest, and overall loan cost—before you apply. Whether you're exploring personal loans, auto loans, or other financing options, the calculator can help you crunch the numbers to get a clearer view of how a loan could fit into your budget and long-term goals.
How to use the loan payment calculator
A loan payment calculator is a simple but powerful tool that helps you estimate your monthly payments based on the loan amount, interest rate, and loan term. It gives you a clearer picture of what you’ll owe each month, so you can plan your finances more confidently. Be sure to double check your inputs to ensure they match the anticipated terms and rates of your loan. Even small errors can significantly affect the payment calculator’s output.
Steps to calculate your payment
Here’s how to get your estimate with the calculator at the top of the page:
- Loan amount: Enter the total amount you plan to borrow into the box. For example, if you are looking to take out a loan for $20,000, enter “20000” in the loan amount field.
- Interest rate: Input the annual interest rate for the loan into the box. For example, if the lender is going to charge you 8.5%, then enter “8.5” in the field.
- Loan term: Input the length of the loan into the box. You can designate the duration in months or years. For example, if you plan to repay the loan over five years, enter "5" and select “years,” or input “60” and select “months.”
- Calculate: After entering the above information and clicking the Calculate button, the loan payment calculator reveals your estimated monthly payment.
Pro Tip:
This calculator also provides other kinds of payment breakdowns, including estimated payment over time, balance over time graphs, and an amortization schedule by month and year.
Calculator output
The calculator will display your estimated monthly payment in the pie chart to the right. In the tabs above the pie chart, you can explore more loan details. For instance, you can review balances over time or examine the split of estimated principal and interest paid each month in the amortization breakdown. You can also review the projected payoff date, total interest paid and total loan cost information.
Making adjustments
You’re able to change any of these inputs on the fly to see how they impact your estimated monthly payments and total loan costs. This is particularly useful for comparing different loan options, such as choosing between a shorter and longer loan term.
Understanding your loan results
Once you’ve used the loan payment calculator, you’ll see a few key numbers that can help you better understand your financial commitment. Let’s break down what they mean and why they matter.
| Loan result | What it means | Why it matters | Where to find it |
|---|---|---|---|
| Monthly payment | Amount to pay each month, including principal and interest. | Helps plan your budget and stay on track with payments. | Payment Breakdown tab |
| Total interest paid | Total amount of interest paid over the life of the loan. | Shows the true cost of borrowing beyond just the loan amount. | Payment Over Time tab |
| Total loan cost | Full amount paid, including principal and interest. | Gives a big-picture view of how much the loan will cost overall. | Balance Over Time tab |
| Amortization schedule | Break out of amount that goes to principal and interest for each payment. | Helps understand how the loan balance changes over time. | Amortization Breakdown tab |
What factors affect your loan payment?
When you use a loan calculator, it’s helpful to understand what’s driving the numbers. Your monthly payment and total loan cost depend on a few key details—like how much you borrow, your interest rate, and how long you’ll take to repay the loan. Understanding these factors makes it easier to compare loan options and choose one that fits your budget and financial goals. Let’s take a closer look at what influences your loan payment.
Loan amount and interest rate:
First, there’s the loan amount. This is the total money you’re borrowing. The more you borrow, the higher your monthly payment will be. Next is the interest rate, which is the cost of borrowing money, typically expressed as an annual percentage rate (APR). Market conditions and your credit score play a big role in what rate you will get. A lower rate means you’ll pay less interest over the life of the loan.
Loan length and type of interest rate
The loan term is the length of time in which you agree to repay the loan. Longer terms lead to smaller monthly payments and add to total interest paid. Shorter terms reduce your total interest costs and raise your monthly payment amount. You’ll also want to think about the type of interest rate. Fixed rates stay the same throughout the loan, so your payments won’t change. Variable rates can go up or down, which means your payments might change too. Note: this calculator is designed for fixed-rate loans.
Payment options and fees
How often you must make payments (monthly, bi-weekly, etc.) can impact the total interest paid and the speed in which you are able to pay off the loan. Some loans offer prepayment options that allow you to make extra payments or pay off the loan early. This can save you money on interest but check for any penalties before doing so. Finally, don’t forget about fees and charges. Things like loan setup fees, late payment penalties, or other costs can add to your total loan amount and affect your monthly payment.
Note:
Not all of the factors outlined above are inputs for the loan payment calculator on this page.
How do you calculate a loan payment?
While you can use a loan calculator to crunch the numbers, you can also learn how the math works to understand what you’ll pay each month. Use the formula below to calculate a monthly payment for an amortizing fixed rate loan:
| Symbol | Definition |
|---|---|
| M | Monthly payment |
| P | Total loan principal |
| r | Loan monthly interest rate |
| n | Number of monthly payments |
Breaking it all down:
Suppose you want to borrow $35,000 for a personal loan with an annual interest rate of 10.5% for a 36-month (three-year) term. What’s your monthly payment?
Variables:
- P = $35,000
- r = 10.5% yearly rate. Divide by 12 to get the monthly rate:
10.5% ÷ 12 = 0.8750% or 0.00875
- n = 3 years. Multiply to get the number of monthly payments:
3 × 12 = 36
Now, let's plug these values into our equation:
M = 35,000 × [0.00875 × (1 + 0.00875)36] ÷ [(1 + 0.00875)36 − 1] M = $1,137.59
Benefits of using a loan payment calculator
A loan payment calculator is a smart way to get a clearer view of your financial options before you borrow with just a few clicks. However, this calculator only works for fixed-rate loans and should not be used for variable-rate loans.
Here’s why you should use one:
- Get fast results with minimal input: Quickly and easily estimate your monthly payment. Just input your loan amount, interest rate and loan term, and let the calculator do the work for you.
- See how a loan fits your budget: Calculate estimates that show if a loan fits your financial situation and budget. Knowing your estimated monthly payment can help you plan your finances with greater confidence.
- Examine interest rate impact: Test different interest rates to see how it affects your estimated monthly payment as well as the total loan cost.
- Compare loan options: Review different scenarios by changing the inputs for loan amount, interest rate and term. This can help as you shop around for the loan that fits you best.
- Evaluate principal and interest: Review a detailed breakdown of your estimated monthly payments and what portion goes toward principal owed versus interest owed.
More about comparing loan scenarios
Trying out different loan setups with the loan payment calculator can help you find the one that fits your budget and long-term goals. Here's a simple example to see how changing the loan term or interest rate affects your monthly payment and total cost:
| Loan Scenario | Loan Amount | Interest Rate | Loan Term | Monthly Payment | Total Interest | Total Loan Cost |
|---|---|---|---|---|---|---|
| Shorter Term, Lower Interest | $15,000 | 6.0% | 3 years | $456 | $1,428 | $16,428 |
| Longer Term, Same Interest | $15,000 | 6.0% | 5 years | $290 | $2,400 | $17,400 |
| Longer Term, Higher Interest | $15,000 | 8.0% | 5 years | $304 | $3,249 | $18,249 |
Key takeaways:
- Shorter terms usually mean higher monthly payments, but you’ll pay less interest overall.
- Longer terms lower your monthly payment, but increase the total interest paid.
- Higher interest rates raise both your monthly payment and the total cost of the loan.
By adjusting the numbers in the calculator, you can see how each choice affects your payment. This helps you compare offers and choose a loan that works best for your financial situation.
Loan payment calculator FAQs
The interest rate is the cost to borrow the principal amount and is expressed as a percentage. APR (Annual Percentage Rate) includes the interest rate plus any fees or other loan costs. While the APR is typically higher than the interest rate due to these added costs, it doesn’t always mean your monthly payment will be higher. If you're comparing loan offers, looking at the APR can help you see which one is truly more affordable.
Understanding how to estimate your car loan payment terms before applying may boost your chance to get financed. You’ll better understand what you can and can’t afford, especially when it comes to managing your payment-to-income (PTI) ratio.
By dividing your total gross monthly income by your estimated car payment, you can calculate your PTI. For example, if you take home $2,000/month in income and have a $500 monthly car payment, your PTI is 25%. Generally, a lower PTI demonstrates borrowers can handle additional debt. According to GM Financial, a PTI under 20% is considered good. .
Use the calculator to play around with different loan amounts and terms to see how they affect your monthly payments and PTI. Don’t forget to compare different interest rates, as a lower rate may reduce your payments and improve your PTI.
The calculator provides an amortization schedule, which is a table that shows the breakdown of each loan payment into principal and interest over the life of the loan. It helps you see how much of your payment goes towards reducing the principal and how much goes towards interest.
You can use an estimated rate based on your credit score or current market averages. Try a few different rates to see how they affect your payment and total loan cost.
You can check your credit score for free through TransUnion. Knowing your score can help you understand what interest rates you may qualify for.
