Weighted Average Cost of Capital (WACC) Calculator

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Results

WACC

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What is WACC Calculator?

Weighted average cost of capital combines the cost of debt and equity using their capital weights.

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How to Use This Calculator

  1. Enter or select Cost of equity, Cost of debt, Corporate tax rate, Equity, Debt.
  2. Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
  3. Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used

WACC = E/(D+E) × Re + D/(D+E) × Rd × (1−T)
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Variables Explained

InputWhat it means
Cost of equityThe shareholder funding or residual ownership value used in the selected ratio.
Cost of debtThe cost amount included by this calculation; keep it on the same basis as the selling amount.
Corporate tax rateThe stated rate or percentage, entered using the scale and time period shown in the form.
EquityThe shareholder funding or residual ownership value used in the selected ratio.
DebtBorrowing included in the ratio’s debt definition, measured on the same valuation date as equity.
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Worked Example

Equal debt and equity, 10% equity cost, 6% debt cost and 25% tax give 7.25%.

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Why Use This Calculator?

Compare the result with the underlying statement, budget or proposed transaction. It is most useful when every amount uses the same reporting period and the same accounting definition.

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Common Mistakes

    • Use compatible weights; book-value and market-value weights can give different results.
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Frequently Asked Questions

Should I use monthly or annual figures?

Use one consistent period for every amount and rate in the relationship. If a form specifies an annual rate or a monthly amount, follow that label rather than mixing time periods.

Does the result include fees and tax?

Only the costs and taxes represented by the inputs and formula are included. A real transaction can include other charges, so compare the estimate with the underlying agreement or statement.

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Sources & References