Calculate the Weighted Average Cost of Capital for investment decisions and corporate valuation analysis.
Enter your company's financial data to determine the weighted average cost of capital.
The Weighted Average Cost of Capital (WACC) represents the average rate a company pays to finance its assets. It's a crucial metric that combines the cost of equity and the after-tax cost of debt, weighted by their respective proportions in the company's capital structure.
WACC = (E/V × Re) + (D/V × Rd × (1-Tc))
Where: E = Market value of equity, D = Market value of debt, V = Total value (E+D), Re = Cost of equity, Rd = Cost of debt, Tc = Corporate tax rate
WACC is essential for investment decisions, project evaluation, and company valuation. It serves as the discount rate in DCF analysis and helps determine if projects will generate returns above the cost of capital. Companies use WACC to evaluate acquisitions and strategic investments.
Low Risk (5-8%): Utilities, established companies
Moderate (8-12%): Most corporations
High Risk (12%+): Startups, emerging markets
The cost of equity is typically calculated using the Capital Asset Pricing Model (CAPM): Cost of Equity = Risk-Free Rate + Beta × Market Risk Premium. Alternatively, you can use the Dividend Discount Model for dividend-paying stocks.
Always use market values for both equity and debt when calculating WACC. Market values reflect the true economic value and current cost of capital, while book values are historical accounting figures.
Interest payments on debt are tax-deductible expenses, creating a "tax shield" that reduces the effective cost of debt. This is why we multiply the cost of debt by (1 - Tax Rate) in the WACC formula.
There's no universal "good" WACC—it varies by industry, risk profile, and market conditions. Generally, a lower WACC is better as it means cheaper financing costs. Compare your WACC against industry peers and use it to evaluate if projects exceed this hurdle rate.