WACC Calculator
Uses (E/V)·Re + (D/V)·Rd·(1 − Tc) with market-value weights.
Outputs are educational estimates only — not investment, tax, or legal advice.
About this tool
Context, privacy, and common questions—meant to be read alongside the step-by-step guide below.
Supply market values of equity and debt, cost of equity, pre-tax cost of debt, and corporate tax rate. The page weights the two capital sources and applies the tax shield on debt interest.
How to use WACC Calculator
Use the sections below from top to bottom — they match the order of the controls on this page.
- Decide which currency or unit convention you are using and keep every field in that convention.
- Gather source figures (statements, platform specs, broker tick sizes) instead of guessing when precision matters.
- Note whether percentages are entered as whole numbers (e.g. 8 for 8%) as the form expects.
- Open WACC Calculator and read the short description so you know what each output represents.
- Enter every required field; use optional fields only when you understand how they change the model.
- Click Calculate (or the main action) and read all outputs, not only the headline number.
- Change one assumption at a time to see sensitivity (rates, growth, stop distance, share count, etc.).
- Copy or jot down results if you are moving the numbers into a spreadsheet or memo.
- Clear the form when you switch to a different ticker, scenario, or reporting period.
Rounded figures are for display—re-run with raw inputs in your own models when stakes are high.
DCF-style tools are simplified teaching layouts; real valuations need capital structure, working capital, and cross-checks.
- “Invalid” or empty results: check for divide-by-zero cases (zero shares, zero volatility, stop equal to entry, etc.).
- Surprising ratios: confirm whether you entered annual vs monthly rates, or percent vs decimal.
- Displayed decimals are rounded; internal math may keep more precision.
- Simplified DCF, Sharpe, or pivot models omit fees, slippage, seasonality, and corporate actions—treat them as sketches.
- Market data on public pages may be delayed; always verify quotes and corporate actions at the source.
On a shared computer, close this tab. Bookmark the page if you will need it again, and save anything important to your own device or notes.
- Outputs are educational estimates, not investment recommendations or tax guidance.
- Leverage, margin, and regulatory limits depend on your broker and region—verify outside this browser tool.
- Past performance, backtests, and simple ratios do not guarantee future results.
- Do not rely on this page alone for leverage, margin, or compliance decisions.