Use our student loan calculators to determine your monthly payment, how long it will take you to pay back a loan, compare competing loan offers, and more.

## Student Loan Payment Calculator

This calculator will tell you how much you'll owe every month as well as how much of each payment will go to interest and principal. You'll need to know the amount of your loan, the current interest rate, and how long you have to pay it off.

## Student Loan Payoff Period Calculator

Use this calculator to determine how long it will take you to pay off your student loan while making a fixed monthly payment. You'll need to know the current loan amount, the interest rate, and how much you plan to pay every month.

## Student Loan Prepayment Calculator

Use this calculator to determine how much you’ll save by increasing your monthly payment or committing to paying off your loans a few years early. To get started, you’ll need to know the total outstanding balance on your loans, the interest rate, and your current monthly payment.

## Student Loan Refinancing Calculator

Use this calculator to determine how much you can save by refinancing your student loans at a lower interest rate.

## Student Loan Deferment Calculator

Use this calculator to determine how much interest your loans will accumulate while in deferment. You'll need to know the current loan amount, the interest rate, and the deferment period in days.

## Interest-only Student Loan Payment Calculator

While you’re in school, you may want to make interest only payments to prevent your loan from growing prior to graduation. Use this calculator to estimate your interest-only payments. You’ll need to know your loan amount as well as the interest rate.

## Biweekly Student Loan Repayment Calculator

The calculator will tell you how much you can save over the life of your loan by implementing a biweekly repayment plan - that is, making payments equal to half your regular monthly payment every two weeks. It will also tell you how much sooner you’ll pay off your loan.

## Student Loan Comparison Calculator

Whether you’re taking out a new student loan or refinancing an existing one, you can use this calculator to compare student loans with different interest rates. Input the loan amount, interest rate, and loan repayment term for each loan, and the results will display in a convenient comparison chart. By comparing various loans, you’ll be able to determine the total costs associated with each loan and choose the best student loan for you.

## Student Loan Consolidation Calculator (Weighted Average Interest Rate Calculator)

Use the Weighted Average Interest Rate Calculator to determine your interest rate when consolidating federal student loans with a Direct Consolidation Loan. The interest rate on a consolidation loan is the weighted average interest rate of the underlying loans, rounded up to the nearest 0.125 percent.

## Student Loan Interest Deduction Calculator for Tax Year 2017

If you paid student loan interest this year, you can use this calculator to estimate your student loan interest tax deduction. You’ll need to know your Modified Gross Adjusted Income (and your spouse’s, where applicable) as well as the amount of student loan interest you paid during the tax year.

## Discretionary Income Calculator

Use this calculator to determine your discretionary income as it's calculated under income-driven repayment plans.

## Debt-to-income Ratio Calculator

Use this calculator to determine your debt-to-income ratio, an important metric that lenders use to qualify you for a new line of credit. You’ll need to enter your gross monthly income as well as the total debt payments you make in any given month.

## Weekly Savings Calculator

Saving even just a small amount each week can have a big impact over the long term. This calculator will help you to estimate the benefit of making a weekly deposit into an account with a fixed interest rate over a period of up to 30 years.