WACC Calculator
Company context
Capital and return assumptions
Ticker lookup changes only the supported equity market-value input. Rate, beta, premium, financing, and tax assumptions stay visible because different reasonable choices can produce materially different WACC estimates.
Cost of capital
WACC is an estimate built from assumptions, not a directly observed market fact. A company-wide WACC also is not automatically the right discount rate for every project, business unit, country, currency, or cash-flow stream.
Carry this 7.857% WACC into Stock Valuation Lab → The valuation page receives it only as an editable starting assumption.
How the estimate is built
| Component | Rate | Capital weight | WACC contribution |
|---|---|---|---|
| Common equity | 9.2% | 71.429% | 6.571 pp |
| Debt after tax | 4.5% | 28.571% | 1.286 pp |
| Combined | WACC | 100% | 7.857% |
CAPM contributes 4.95 percentage points above the entered risk-free rate, producing a 9.2% cost of equity. The capital weights use the market values you entered, not book values or net debt.
Debt tax-shield illustration
This assumes the entered pre-tax debt cost applies to the entered debt market value for a full year and that the entered marginal tax rate applies to that interest cost. It does not determine whether an issuer can use every interest deduction in practice.
Use WACC as an explicit valuation assumption
WACC is commonly used as a discount-rate input for company valuation and capital budgeting, but the estimate depends on the capital structure and component cost assumptions selected. The Stock Valuation Labowns Grizzly Bulls' DCF and reverse-DCF workflows. This page does not duplicate those valuation models.
This version covers common equity and debt only. It does not add preferred stock, convertibles, leases, pensions, minority interests, excess cash adjustments, synthetic credit ratings, bottom-up beta estimation, or automatic unlevering and relevering.
Method sources
- CFA Institute: Cost of Capital, Advanced Topics, covering component costs, capital weights, and the judgment required in estimating WACC.
- CFA Institute: Capital Structure, covering WACC and capital-structure decisions.
- Aswath Damodaran: Cost of Equity and Capital, providing current industry examples of beta, equity cost, debt cost, tax rate, capital weights, and cost of capital.