DCF Calculator 2026

A DCF (Discounted Cash Flow) calculator estimates the intrinsic value of an investment, business, or asset by projecting its future cash flows and discounting them back to their present value. It takes your projected cash flows, discount rate (required rate of return), and terminal growth rate to calculate the net present value (NPV). This is one of the most fundamental valuation methods used by professional investors, analysts, and business owners worldwide. The calculator provides a mathematically-derived value you can compare against a current market price. That comparison is only as good as the inputs: projected cash flows, discount rate and terminal growth are estimates, and small changes to them move the output substantially. A gap between the two figures is a prompt to examine your assumptions, not evidence that the market is wrong.

Brutally garbage in, garbage out. A DCF calculator is mathematically precise but depends ENTIRELY on your assumptions. Small changes in projected growth rates, discount rates, or terminal growth can dramatically change the valuation. If you project 15% growth but actual is 10%, your valuation could be 30-50% off. The 'accuracy' is about the assumptions, not the math. No one can predict future cash flows with certainty—DCF is a framework for thinking, not a guarantee. Use conservative estimates, run multiple scenarios (base, bullish, bearish), and always cross-reference with other valuation methods.

The discount rate (also called required rate of return or cost of capital) is the minimum return you expect from an investment, reflecting its risk. In DCF, it's used to convert future cash flows to today's value. Higher risk = higher discount rate = lower valuation. How to choose: (1) For stocks, use WACC (Weighted Average Cost of Capital) or CAPM (Capital Asset Pricing Model). (2) For bonds, use yield to maturity. (3) For real estate, use the capitalization rate. (4) For individual investors, use your expected return (10-15% for stocks, 6-8% for real estate, 4-6% for bonds). Choosing the right discount rate is the most subjective part of DCF—and changes valuation significantly.

Free Cash Flow (FCF) is the cash a company generates after spending on maintaining/expanding its asset base. Formula: FCF = Operating Cash Flow - Capital Expenditures. Or more detailed: FCF = EBIT × (1 - Tax Rate) + Depreciation & Amortization - Capital Expenditures - Change in Working Capital. Key point: DCF uses FCF, not net income, because cash is what investors ultimately receive. For individuals or real estate, calculate net cash flow after all expenses. Many beginners use net income instead of FCF—this overvalues companies with high non-cash expenses. Always use FCF for accurate valuation. This applies to businesses.

DCF has significant limitations: (1) High sensitivity to assumptions—small changes in inputs dramatically alter valuation. (2) Difficulty forecasting long-term cash flows accurately. (3) Terminal value dominates—often 70-80% of valuation—making it especially sensitive to terminal growth assumptions. (4) Doesn't account for management quality, brand value, or intangible assets that can't be easily quantified. (5) Struggles with companies that have negative cash flows (startups, high-growth tech). (6) Requires significant financial modeling expertise. DCF is a sophisticated tool that's easy to misuse. Always use conservative assumptions, run multiple scenarios, and complement with other valuation methods.