---
title: "WACC Calculator: Weighted Average Cost of Capital | MCC"
description: "Enter equity, debt, their costs and the tax rate to get your weighted average cost of capital. Free and private."
url: "https://mcc-solutionsnj.com/bookkeeping/wacc-calculator"
---

Paid calculator

# WACC calculator

Find the blended cost of the money financing the business. Enter equity and debt amounts, the cost of each and your tax rate.

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Paid calculator

## WACC calculator

Buy this calculator on its own for $9, one time. No membership needed. It runs in your browser and nothing you enter is sent to us or saved. Read how it works and the questions below first.

Want a second pair of eyes on your books? [A free bookkeeping health check](/bookkeeping/health-check).

The [Financial Suite](/bookkeeping/financial-suite) includes this and 9 more tools for $49. Members get this included. [See the membership](/membership) or [sign in](/membership/login). Already bought it? Email me my access link.

How it works

## How it works

**WACC = equity weight x cost of equity + debt weight x cost of debt x (1 - tax rate).** Interest is tax deductible, so debt is counted after tax. The result is the hurdle rate a project should beat. Cost of equity is an estimate, since there is no bill for it.

FAQ

## About this calculator

**How do I estimate cost of equity?**

Owners usually use the return they expect for the risk, often with a premium over lending rates. For a small business it is a judgment call, so try a range.

**Should I use book or market values?**

Market values are the textbook choice. For a private business, book or an estimated value is common. Note which you used.

**How is WACC used?**

As the discount rate in NPV work and as a minimum return for new projects.

**Is anything saved?**

No. The math runs in your browser and nothing you enter is sent to us.

**Is this tax or financial advice?**

No. It is a calculator for general information. Check the numbers against your own records, and ask an accountant before you act on them.

Related: [npv irr payback calculator](/bookkeeping/npv-irr-payback-calculator), [debt to equity ratio calculator](/bookkeeping/debt-to-equity-ratio-calculator). See [all free tools](/free-tools). More free tools: [Leads needed calculator](/bookkeeping/leads-needed-calculator), [Loan-to-value ratio calculator](/bookkeeping/loan-to-value-ratio-calculator), [Auto loan calculator](/bookkeeping/auto-loan-calculator), or [see all free tools](/free-tools).

Free

### Month-End Close Checklist (PDF)

The five-day close, one page to print. Enter your email and we send a link to confirm it is yours, then the download. We may email you about new toolkits, and every email has an unsubscribe link.

General information, not tax or legal advice. [How we write and check our tools](/editorial-standards).

Do it yourself

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