Home equity loan calculator

Your home is worth more than you still owe: that gap can secure a new loan. We work out the payment and the cap, based on the share of the value the lender accepts.

Home equity loan calculator

%
years
%
Often 80%; depends on the lender.

Result

421.93New loan monthly payment

Total loans ÷ home value (CLTV)
67.5%
Maximum you can borrow
100,000.00
Equity (value − owed)
180,000.00
Interest cost
25,947.11

Home equity loan calculator

Inputs

Home value
400000
Left to pay on current mortgage
220000
Amount to borrow
50000
Rate per year
6
Term
15
Maximum share of value
80

How it is calculated

Equity = home value − amount owed.

Result

New loan monthly payment

421.93
Total loans ÷ home value (CLTV)
67.5%
Maximum you can borrow
100,000.00
Equity (value − owed)
180,000.00

How it is calculated

  1. Equity = home value − amount owed.
  2. Cap = value × maximum share − amount owed.
  3. Payment = amount × i ÷ (1 − (1 + i)^−n), with i = rate ÷ 12.

Example

Home worth 400,000, 220,000 still owed, borrowing 50,000 at 6% over 15 years: payment 421.93, total loans 67.5% of the value, cap 100,000 at 80%.

Good to know

  • Financial mechanics only: real products (home equity loan, further advance, second mortgage…) and their rules differ by country and bank.
  • Closing, guarantee and insurance costs not included.

Frequently asked questions

What is this tool used for?

Your home is worth more than you still owe: that gap can secure a new loan. We work out the payment and the cap, based on the share of the value the lender accepts.

How is the result calculated?

Equity = home value − amount owed.

What should I check before using the result?

Financial mechanics only: real products (home equity loan, further advance, second mortgage…) and their rules differ by country and bank.

Updated October 10, 2026

Indicative result. For an important decision, check with a professional.