Compute payments for a 10/1 adjustable-rate mortgage and its first reset.
Please do not make financial decisions based on these results.
What is the 10/1 ARM Calculator?
Compute payments for a 10/1 adjustable-rate mortgage and its first reset. To use the 10/1 ARM Calculator, enter loan, initial rate, rate after reset, term; it returns initial payment, balance at year 10, payment after reset, and shows them instantly as you type.
Where the 10/1 ARM Calculator fits
Compute payments for a 10/1 adjustable-rate mortgage and its first reset. The main figure it returns is the Initial payment, worked out from the values you enter.
It belongs with the other loans & debt tools. If you are comparing options or checking a result from another angle, try the Partially Amortized Loan Calculator, Deferred Payment Loan Calculator or the PITI Calculator.
How to use the 10/1 ARM Calculator
- Fill in the fields. You will need Loan ($), Initial rate (%), Rate after reset (%), Term (years). Take the rate and term from your loan offer. Fees and the rate type change the result. Fields marked optional can stay at zero.
- Read the result. The highlighted box gives the Initial payment, and the cards below show Balance at year 10, Payment after reset. Tables and charts break it down further.
- Test other scenarios. Results update as you type. Change one value at a time to see what drives the answer, and press Reset to go back to the defaults.
Formula and how it works
Example with real numbers
Here is the 10/1 ARM Calculator using the default values shown in the calculator above:
Inputs
| Loan ($) | 400,000 |
|---|---|
| Initial rate (%) | 6.2 |
| Rate after reset (%) | 7.5 |
| Term (years) | 30 |
Results
| Initial payment | $2,449.88 |
|---|---|
| Balance at year 10 | $336,513.61 |
| Payment after reset | $2,710.93 |
With these inputs the calculator returns Initial payment: $2,449.88. Change any value in the calculator to see how the result moves.
What if you change one input?
Sensitivity check: raising Loan ($) from 400,000 to 480,000 (about 20% higher) and leaving everything else as in the example above changes the results like this:
| Result | Example | After the change | Change |
|---|---|---|---|
| Initial payment | $2,449.88 | $2,939.85 | +20% |
| Balance at year 10 | $336,513.61 | $403,816.33 | +20% |
| Payment after reset | $2,710.93 | $3,253.12 | +20% |
The input that moves the result most is the one to check twice. Change it in the calculator above to test your own case.
What the results tell you
The results panel of the 10/1 ARM Calculator reports Initial payment, balance at year 10 and payment after reset. Compare these figures while changing one input at a time, and use the related calculators below to look at the same situation from another angle.
Method and limits. This calculator applies the formula in the section above to your inputs, in your browser; nothing you enter is stored on our servers. Your lender’s offer is the final word: fees, rate type and rounding differ between lenders. It is for information, not financial, tax or legal advice.
Frequently asked questions
What is a 10/1 ARM?
A mortgage with a fixed rate for ten years that then adjusts each year.
Can I enter the term in years and months?
Yes. Enter years and months together, for example 6 years and 2 months.
How can I pay off a loan faster?
Pay more than the required amount, add extra yearly or one-time payments, or switch to biweekly payments. Make sure extra payments go to principal.
Are the results guaranteed?
No. Results depend entirely on the numbers you enter and the formulas shown on this page. Please do not make financial decisions based on them alone; confirm important figures with a licensed professional.
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