---
title: "HELOC calculator"
description: "How much can I borrow with a HELOC: credit limit, CLTV, draw and repayment payments."
htmlPath: "/heloc"
tool: "heloc"
keywords:
  - "HELOC calculator"
  - "how much can I borrow with a HELOC"
  - "HELOC rates by credit score"
  - "HELOC calculator credit score"
---

# HELOC calculator — how much can I borrow

- **URL:** https://financeflow.studio/heloc  
- **Markdown:** https://financeflow.studio/ai/heloc.md  
- **Primary keywords:** HELOC calculator; how much can I borrow with a HELOC  

## Summary

Educational **home equity line of credit (HELOC)** calculator. Estimates max credit under a combined loan-to-value (CLTV) guideline: roughly **home value × max CLTV − mortgage balance**. Models draw vs repayment payments, utilization, equity, and amortization. Uses a fixed educational rate (real HELOCs are often variable), with optional **credit score ranges** that preset an illustrative rate.

## Inputs (typical)

- Home value, first-mortgage balance  
- Max CLTV guideline, credit limit, amount drawn  
- Interest rate (educational fixed or illustrative credit score range; `?credit=`), draw period years, repayment years  
- Payment mode (e.g. interest-only draw vs amortizing)  
- Optional extra payments  

## Outputs

- Max HELOC credit limit, available credit, utilization  
- CLTV / HCLTV style metrics  
- Draw-period payment and repayment P&I  
- Equity before/after draw; amortization / interest estimates  

## FAQs

### How much can I borrow with a HELOC?

Max credit ≈ home value × max CLTV − existing mortgage balance. Available credit is limit minus current draw. Many illustrations use ~80% CLTV; real limits depend on lender, credit, and property. Educational only.

### What is a HELOC?

A revolving credit line secured by the home, usually a second lien. Draw during the draw period; repay remaining balance in the repayment period.

### How is HELOC credit limit estimated?

Home value × max CLTV − mortgage balance. Adjust inputs to see borrowing power change.

### Draw period vs repayment period?

Draw: often interest-only on the amount drawn. Repayment: remaining balance usually amortizes with principal and interest.

### Can I estimate HELOC rates by credit score?

Yes for payment math. Educational credit score ranges preset an illustrative HELOC note rate (real HELOCs are often variable). No credit pull. Example: https://financeflow.studio/heloc?credit=good

### Are results a loan offer?

No. Educational only. Fixed educational rate; not a lender quote.

## Related tools

- Refinance (cash-out alternative): https://financeflow.studio/refinance — [refinance.md](https://financeflow.studio/ai/refinance.md)  
- Glossary (HELOC, CLTV, draw period): https://financeflow.studio/glossary  

## Disclaimer

Educational estimates only—not a HELOC offer or advice.