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HELOC Payment Calculator

Estimate HELOC or home-equity-loan payments from balance, rate, term, and an optional interest-only period.

Updated April 11, 2026
Free online tool
Planning and research use

Why this page exists

Home equity borrowing gets harder to compare when the payment structure changes over time. This calculator helps homeowners estimate either a fully amortized payment or an interest-only phase followed by a larger repayment phase so the monthly impact is easier to understand.

Interactive tool

Run the estimate

Enter your numbers and read the result first, then use the sections below to understand what affects the outcome.

Calculator

HELOC payment calculator

Estimate payments for a home equity line or loan using the balance, interest rate, repayment term, and an optional interest-only period.

Result

$584.38 interest-only

Estimated initial interest-only payment plus the later amortized payment after the interest-only period ends.

Initial interest-only payment$584.38

Estimated payment after interest-only period$1,042.55

Total interest paid$75,168.18

Total amount paid$160,168.18

The estimate starts with about $584.38 per month for 5 years, then shifts to about $1,042.55 to amortize the balance.
Interest-only periods usually lower the initial payment but can raise the later payment because the principal still needs to be repaid over fewer months.
Use the result as a planning estimate and confirm variable-rate details, fees, and lender repayment rules before relying on the exact number.

This is a planning estimate. Real HELOC and home-equity products can use variable rates, draw periods, fees, and lender-specific repayment rules.

Planning note

Last updated April 11, 2026. Use this tool to compare scenarios and plan ahead, then confirm important details with the lender, employer, insurer, contractor, or other qualified provider involved in the final decision.

How it works

What the calculator is doing

Enter the balance, interest rate, and repayment term.

Leave the interest-only period at 0 for a fully amortized estimate or add an interest-only phase if that matches the product being reviewed.

The calculator estimates the initial payment, later amortized payment if needed, total interest, and total amount paid.

Understanding your result

Interest-only periods can make the early payment look smaller than the later reality. That is why it helps to see both the initial payment and the later payment instead of only one simplified number.

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Examples

Ways people use this tool

Example scenarios help turn a quick estimate into a more useful comparison or planning step.

Compare fully amortized vs interest-only

Run the calculator both ways to see how a smaller early payment can raise the later payment once principal repayment begins.

Check a renovation borrowing plan

Use the estimate to see how a home-equity payment might fit into the monthly housing budget before borrowing.

Translate a HELOC balance into a planning number

If you know the balance and rate, this gives a cleaner first-pass payment estimate than guessing from the statement.

FAQ

Common questions

How is a HELOC payment different from a regular mortgage payment?

Some HELOC-style products use an interest-only period before principal amortization begins, which can create a lower initial payment and a higher later payment.

Why can the payment jump after an interest-only period?

Because the full balance still needs to be repaid over fewer remaining months once principal repayment starts.

Does this calculator handle variable-rate changes?

No. It uses one steady interest rate for planning, so variable-rate changes can make the real payment different.

Related tools

Keep comparing

Use these related tools to compare nearby scenarios, check a second estimate, or keep narrowing down the right decision.

Home ToolsUpdated April 11, 2026