Cost of Capital Calculator
Calculate a company's overall cost of capital from its cost of equity and cost of debt, with CAPM and after-tax debt helpers
About the Cost of Capital Calculator
The Cost of Capital Calculator is a free online tool from zCalculators that helps you calculate a company's overall cost of capital from its cost of equity and cost of debt, with CAPM and after-tax debt helpers It runs entirely in your browser, returns results instantly as you change inputs, and works on desktop and mobile without any signup or installation.
Frequently asked questions
What is the Cost of Capital Calculator?
Calculate a company's overall cost of capital from its cost of equity and cost of debt, with CAPM and after-tax debt helpers
How do I use the Cost of Capital Calculator?
Enter your values into the Cost of Capital Calculator above. Results update instantly as you type — no signup or installation required. You can copy results, share the page, or embed the calculator on your own site.
Is the Cost of Capital Calculator free to use?
Yes. The Cost of Capital Calculator on zCalculators is completely free, requires no signup, and runs entirely in your browser. We don't store your inputs.
How accurate is the Cost of Capital Calculator?
The Cost of Capital Calculator uses standard, well-established formulas. Results are accurate for the inputs you provide, but should be treated as estimates and not a substitute for professional advice.