What is a DCF Calculator and How Does It Work?
A DCF calculator (Discounted Cash Flow) is an essential tool for investors, analysts, and business owners to determine what a business is worth. Our DCF calculator 2026 uses professional valuation methodology to calculate enterprise value, net present value (NPV), and internal rate of return (IRR). Whether you're asking "what is a business worth?" or evaluating an investment opportunity, this discounted cash flow calculator provides accurate estimates based on your cash flow projections.
How does the dcf valuation calculator work? Enter your initial investment, year 1 cash flow, growth rate, discount rate, terminal growth, and projection years. The business valuation calculator automatically projects future cash flows, calculates terminal value using perpetuity or exit multiple method, and discounts everything to present value. The investment valuation calculator also shows NPV, IRR, and payback period.
DCF Valuation Formula
Enterprise Value = Σ(CF₁/(1+r)¹ + CF₂/(1+r)² + ... + CFₙ/(1+r)ⁿ) + TV/(1+r)ⁿ
Terminal Value (Perpetuity Growth): TV = CFₙ × (1+g) ÷ (r-g)
Net Present Value (NPV) = Enterprise Value - Initial Investment
Internal Rate of Return (IRR): The discount rate that makes NPV = 0
2026 Discount Rate Guide
Large Public Companies: 8-10% WACC — Stable, predictable cash flows.
Small Public Companies: 10-12% — Includes small-cap premium.
Private Companies (Stable): 12-15% — Illiquidity + size premium.
Private Companies (Growth Stage): 15-20% — Higher uncertainty.
Startups: 30-50% — Very high risk, VC target returns.
Terminal Value Calculation
Perpetuity Growth Method: TV = Final Year CF × (1 + Terminal Growth) ÷ (Discount Rate - Terminal Growth). Terminal growth should be 2-3% for 2026.
Exit Multiple Method: TV = Final Year EBITDA × Industry Multiple. 2026 multiples: Technology 12-18×, Healthcare 10-14×, Consumer 8-12×, Industrial 7-10×.
How to Choose the Right Discount Rate
Lower risk = lower discount rate = higher valuation. Higher risk = higher discount rate = lower valuation. Use CAPM for public companies: Re = Rf + β × (Rm - Rf) where Rf = 4.2% (10-year Treasury).