This calculator estimates the monthly principal-and-interest payment on a $35,000 home equity loan when you enter its APR and repayment term. It also estimates total interest using the same fixed-rate, level-payment assumptions; your lender’s actual figures may differ.
Formula
The calculator uses the standard fixed-rate amortizing-loan payment formula. It calculates a level monthly payment that repays principal and interest over the selected number of monthly payments:
Payment = P × r ÷ [1 − (1 + r)−n]
- P is the loan principal, in dollars: $35,000 in the example.
- r is the monthly interest rate, expressed as a decimal: APR ÷ 1,200. At an 8% APR, r = 0.08 ÷ 12.
- n is the number of monthly payments: years × 12.
The displayed payment is rounded to the nearest cent. Estimated total interest is calculated as the rounded monthly payment multiplied by the number of payments, minus the original principal: Total interest = payment × n − P. The formula assumes the stated APR is the rate used for the loan calculation; it does not separately model fees or other borrowing costs.
Worked Example
Using the calculator’s default values—$35,000 principal, 8% APR, and a 10-year term:
- Convert APR to a monthly decimal rate: 8 ÷ 1,200 = 0.0066667.
- Convert the term to payments: 10 × 12 = 120 monthly payments.
- Apply the payment formula: $35,000 × 0.0066667 ÷ [1 − (1.0066667)−120].
- Round to cents: estimated monthly payment = $424.64.
- Calculate interest using the rounded payment: $424.64 × 120 − $35,000 = $15,956.80 in estimated total interest.
Assumptions
- The interest rate stays fixed throughout the repayment term.
- There are equal monthly payments, with the first payment one month after borrowing.
- Interest accrues monthly at APR divided by 12.
- The estimate excludes fees, taxes, insurance, PMI, escrow, and any costs not entered as calculator inputs.
How to Read the Estimate
At the default inputs, the estimated principal-and-interest payment is $424.64 per month. Across 120 payments, the estimate totals $50,956.80: $35,000 in principal and $15,956.80 in interest. This is a calculation example, not a quoted offer or a statement about available rates. Replace the default APR and term with the figures in a lender’s written loan information to produce a more relevant estimate.
Payment and total interest respond differently to the inputs. A longer term generally spreads repayment over more months, reducing the scheduled monthly payment while increasing the number of months during which interest accrues. A higher APR increases the payment and, all else equal, the interest paid over the full term. The exact change depends on both the rate and term, so use the calculator with the actual proposed values rather than relying on a general rule of thumb.
For example, at the same principal and APR, changing the term changes n in the formula. That changes both the payment and the total number of payments. The $424.64 example should therefore not be treated as the payment for every $35,000 home equity loan: it applies only to the stated 8% APR and 10-year term under the assumptions above.
What a Home Equity Loan Payment Includes
A home equity loan is generally structured as a lump-sum loan secured by equity in a home, with repayment over an agreed schedule. The calculator covers the scheduled principal-and-interest portion only. A payment due to a lender may include other amounts or costs that this arithmetic does not capture. Check the lender’s disclosure for the payment schedule, fees, and any other charges that apply to the specific loan.
Do not confuse a home equity loan with a home equity line of credit (HELOC). A home equity loan commonly has a lump-sum balance and scheduled payments; a HELOC is a revolving credit arrangement and may have different draw, repayment, and rate terms. This calculator does not model a HELOC, variable rates, changing balances, interest-only periods, or fees.
Because a home equity loan is secured by a home, missed payments can have serious consequences. The calculator cannot assess the risks of borrowing against a home, determine eligibility, or establish what payment fits a household budget. Those depend on the complete loan terms and the borrower’s circumstances; the result here is only arithmetic.
Costs and Limits to Check
APR and the contract’s payment terms matter, but the output is not a complete measure of the loan’s cost. Ask for the written payment schedule and confirm whether the quoted payment includes anything beyond principal and interest. If charges are financed into the balance, the amount borrowed may be different from the cash proceeds. A changing rate or a nonstandard repayment schedule can also make a fixed-rate amortization estimate inaccurate.
- Enter the loan principal, not the home’s value or available equity.
- Enter APR as a percentage: type 8 for 8%, not 0.08.
- Enter the repayment duration in years. The calculator converts it to months by multiplying by 12.
- Use the rate and term that apply to the specific written offer; do not assume the defaults match a lender’s terms.
Rounding creates small differences when actual payments are calculated with a lender’s schedule, especially if payment dates or accrued interest vary. Here, total interest uses the displayed payment rounded to cents, as shown in the worked example. The result is an estimate rather than a payoff quote.
Frequently Asked Questions
What is the payment on a $35,000 home equity loan?
It depends on APR and repayment term. With the calculator defaults of 8% APR and 10 years, the estimated principal-and-interest payment is $424.64 per month.
How much interest would I pay on $35,000?
At the example’s 8% APR and 10-year term, estimated interest is $15,956.80, calculated from 120 payments of $424.64. Different rates, terms, or payment schedules change the result.
Does the payment include fees or insurance?
No. The calculation includes only scheduled principal and interest. It does not add fees, taxes, insurance, PMI, or escrow; check the lender’s disclosure for any other amounts.
Why does a longer term change total interest?
A longer term means more scheduled monthly payments and a longer repayment period. Although the monthly payment may be lower, interest can accumulate over more payments. The calculator shows the effect for the rate and term entered.
Is a home equity loan the same as a HELOC?
No. A home equity loan is generally a lump-sum loan, while a HELOC is a revolving credit arrangement. Their balances, rates, and payment schedules can differ, and this calculator models neither a variable-rate loan nor a revolving line.
This result is an estimate; the lender’s disclosure gives the exact figures.
Related
Formula used
in p | Loan amount | $ | 35000 | 1 | 100000000 in apr | Interest rate (APR) | % | 8 | 0.01 | 100 in yrs | Loan term | years | 10 | 0.0833 | 50 out pmt | Monthly payment | $ | round(p * (apr / 1200) / (1 - (1 + apr / 1200) ^ -(yrs * 12)), 2) | 2 out int | Total interest | $ | pmt * yrs * 12 - p | 2
Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work
Method: the standard loan formula for this calculation, fixed rate and monthly compounding unless stated, rounded as each result states. Not financial advice; no lender, rate or product is recommended. See formulas and assumptions, the disclaimer or report an error.
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