Blended Rate Calculator

Combining a low first mortgage with a HELOC or second lien? See your weighted blended rate and combined payment, and compare it to today's published average.

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Illustrative rate used: 6.875% (a conservative national average, not a quote). Estimates only, using an illustrative interest rate and tax and insurance data for your selected state (county-level where county data is available). Not a quote, offer, or commitment to lend. Verify every figure with a licensed lender in your state before relying on it.

Published national-average rates are shown for educational comparison only, as of the date indicated, sourced from Mortgage News Daily / Freddie Mac PMMS. They are general averages — not a rate quote, offer, pre-qualification, rate lock, or commitment to lend. Your actual rate depends on your lender, credit profile, loan details, and market conditions.

Next step

Get the free Refinancing Booklet — emailed to you

A plain-English guide you can keep. Optionally, a free educational consultant can answer your questions — they explain how the programs work, and never take applications or quote rates. Educational only, never sold or shared.

Step 1 of 4 · about 30 seconds

Hi, I'm Murphy. I built MortEdu so home loans feel less mysterious. Four quick questions and the full booklet is yours — no sales calls.

Let's get you the full Refinancing Booklet.

Takes about 30 seconds.

Your full name

Where should we send your copy?

We'll email the download link too, so you can grab it again later.

Email address

Which state are you in?

Loan programs and limits vary by state — knowing yours makes the guide more useful.

Your state

Last step — anything else?

Your booklet is on its way by email either way. If it would help, a free educational consultant can answer questions about how the programs work.

MortEdu is an educational resource — not a lender, mortgage broker, or financial advisor. The booklet is for learning only and is not an offer to lend or financial advice. Always consult a licensed professional before making a decision. We don't sell your information. See our Privacy Policy.

Frequently asked questions

What is a blended rate?

A blended rate is the weighted-average interest rate across two loans — for example, keeping a low first mortgage and adding a HELOC or second lien instead of refinancing the whole balance at today's higher rate. It is weighted by each loan's balance.

Why compare it to a published average?

Seeing your blended rate next to today's published national average helps you judge whether keeping the low first loan plus a second is cheaper than refinancing everything. The published average is shown for educational comparison only — not a rate quote.

Is the result a quote?

No. It is an educational estimate. Your actual rates depend on your lender, credit profile, loan details, and market conditions.

Blended rates & keeping your low first rate

A blended rate is the weighted-average interest rate across two loans — common when you keep a low first mortgage and add a HELOC or second lien instead of refinancing the whole balance at today's higher rate. This tool weights each loan by its balance to show the effective rate and combined payment, so you can compare it to today's published average before deciding.