HELOC Calculator
🇺🇸 US-specific: HELOC (Home Equity Line of Credit) is a US revolving-credit loan structure with a draw period and repayment period — this product structure is specific to the US mortgage market.
Enter a positive amount drawn and valid rates/terms.
Draw period ( years, interest-only)
Monthly payment: $0.00
Total interest paid during draw: $0.00
Repayment period ( years, principal + interest)
Monthly payment: $0.00
Total interest paid during repayment: $0.00
Free HELOC calculator with separate interest rates for the draw period and repayment period — we checked calculator.net's HELOC calculator directly: it acknowledges HELOC rates are usually variable and warns of rate uncertainty, but the calculator itself only models a single fixed rate for the entire term.
How it works
- Enter the amount drawn, draw period length and rate, and repayment period length and rate
- See the interest-only payment during the draw period and the full principal + interest payment during repayment
- Set a higher repayment-period rate than the draw-period rate to stress-test what happens if your variable rate rises
Frequently asked questions
Why does this ask for two different interest rates?
HELOCs are typically variable-rate, and the rate you get during the draw period isn't guaranteed to hold once you enter repayment. We checked calculator.net's HELOC calculator directly — it explains this risk in text but only lets you enter one fixed rate for the whole loan. This tool lets you model a rate change directly.
Why is the draw period payment interest-only?
That's the standard HELOC structure — during the draw period you typically only pay interest on what you've borrowed, with the principal balance untouched until repayment begins.
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Update history
- 2026-09-01 Added: a cover image (a tap dripping coins into a rising pool on one side, the same pool draining evenly through a pipe on the other) — used as the card thumbnail, social share image, and blog title image.
- 2026-09-01 Launched: HELOC calculator (no button) — separate draw-period (interest-only) and repayment-period (amortizing) phases, with independent interest rates for each to model a variable-rate increase. Entirely client-side.