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HELOC Calculator

Calculate your available HELOC amount based on home equity, then estimate payments during the draw period (interest-only) and repayment period (principal + interest). Compare different draw amounts and see the full amortization schedule.

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How to Use HELOC Calculator

  1. 1Enter your home value and current mortgage balance.
  2. 2Set the HELOC interest rate and draw amount.
  3. 3View interest-only payments during the draw period.
  4. 4See full payments during the repayment period.

Frequently Asked Questions

Most lenders allow a combined loan-to-value (CLTV) ratio of 80-85%. So if your home is worth $400,000 and you owe $250,000, your available equity is $400,000 × 85% - $250,000 = $90,000.

A HELOC has two phases: a draw period (typically 10 years) where you can borrow and make interest-only payments, and a repayment period (typically 20 years) where you pay principal plus interest on the outstanding balance.

HELOC rates are typically variable, based on the prime rate plus a margin. As of 2024, rates range from 8-10% depending on credit score and LTV ratio. Some lenders offer fixed-rate conversion options.

Using the HELOC Calculator is simple: visit the tool page, enter your data or input into the provided fields, and get instant results. No downloads, installations, or sign-ups are required. The tool runs directly in your web browser for maximum convenience.

Yes, the HELOC Calculator is 100% free to use with no limitations. There is no registration required, no daily usage caps, and no hidden fees. You can use it as many times as you need.

The HELOC Calculator uses industry-standard formulas and algorithms to deliver reliable results. While the tool is designed for accuracy, results should be used as estimates and guidance. For critical decisions, always consult a qualified professional.

Yes, after running your calculation you can copy the results to your clipboard or take a screenshot. The HELOC Calculator displays a detailed breakdown so you can easily record or share your numbers. No account is required to use or save results.

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About HELOC Calculator

Calculate your available HELOC amount based on home equity, then estimate payments during the draw period (interest-only) and repayment period (principal + interest). Compare different draw amounts and see the full amortization schedule.

NexTool's HELOC Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.

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$50k$2M
$0$400,000
3%20%

Leave blank to use max: $90,000.00

Equity Overview85% LTV limit
Mortgage: $250,000Available: $90,000Protected: $60,000

Home Equity

$150,000

Max HELOC Amount

$90,000

Total Interest

$173,950

Total Cost

$263,950

Draw Period (10 years)

Interest-Only Payments

$637.50

per month

Duration120 months
Principal Paid$0
Total Interest$76,500.00

Repayment Period (20 years)

Principal + Interest Payments

$781.04

per month

Duration240 months
Principal Repaid$90,000.00
Total Interest$97,449.82

Total Cost Breakdown

Principal: $90,000.00 (34.1%)Draw Interest: $76,500.00 (29.0%)Repay Interest: $97,449.82 (36.9%)
HELOC Draw Amount$90,000.00
Interest During Draw Period+$76,500.00
Interest During Repayment+$97,449.82

Total Cost$263,949.82

Compare Different Draw Amounts

Draw AmountDraw PaymentRepay PaymentTotal InterestTotal Cost
$22,500(25%)$159.38$195.26$43,487.45$65,987.45
$45,000(50%)$318.75$390.52$86,974.91$131,974.91
$67,500(75%)$478.13$585.78$130,462.36$197,962.36
$90,000(100%)$637.50$781.04$173,949.82$263,949.82

Amortization Schedule

360 months total
YearPhasePaymentsPrincipalInterestBalance
Year 1Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 2Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 3Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 4Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 5Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 6Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 7Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 8Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 9Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 10Draw Period$7,650.00$0.00$7,650.00$90,000.00
Year 11Repayment$9,372.49$1,791.21$7,581.28$88,208.79
Year 12Repayment$9,372.49$1,949.53$7,422.96$86,259.26
Year 13Repayment$9,372.49$2,121.85$7,250.64$84,137.41
Year 14Repayment$9,372.49$2,309.41$7,063.08$81,828.00
Year 15Repayment$9,372.49$2,513.54$6,858.95$79,314.46
Year 16Repayment$9,372.49$2,735.71$6,636.78$76,578.75
Year 17Repayment$9,372.49$2,977.52$6,394.97$73,601.23
Year 18Repayment$9,372.49$3,240.71$6,131.78$70,360.52
Year 19Repayment$9,372.49$3,527.16$5,845.33$66,833.37
Year 20Repayment$9,372.49$3,838.93$5,533.56$62,994.44
Year 21Repayment$9,372.49$4,178.25$5,194.24$58,816.19
Year 22Repayment$9,372.49$4,547.57$4,824.92$54,268.62
Year 23Repayment$9,372.49$4,949.54$4,422.96$49,319.08
Year 24Repayment$9,372.49$5,387.03$3,985.46$43,932.05
Year 25Repayment$9,372.49$5,863.19$3,509.30$38,068.86
Year 26Repayment$9,372.49$6,381.45$2,991.04$31,687.41
Year 27Repayment$9,372.49$6,945.51$2,426.98$24,741.90
Year 28Repayment$9,372.49$7,559.43$1,813.06$17,182.47
Year 29Repayment$9,372.49$8,227.61$1,144.88$8,954.86
Year 30Repayment$9,372.49$8,954.86$417.63$0.00

How a HELOC Works

Draw Period (10 years)

During the draw period, you can borrow up to your credit limit and only pay interest on the amount you have drawn. Your minimum payment is interest-only, meaning your balance does not decrease unless you make extra principal payments.

Repayment Period (20 years)

After the draw period ends, you can no longer borrow. Your payments now include both principal and interest, and the payment amount will be higher than during the draw period. The balance is fully amortized over the repayment period.

LTV (Loan-to-Value)

Most lenders allow a maximum combined LTV of 80-90%. With a 85% max LTV, your combined mortgage + HELOC cannot exceed $340,000 on a home valued at $400,000.