Valuation is a negotiation informed by arithmetic, not an output of it. The calculators here produce the defensible range that a conversation starts from, and make explicit which assumptions are doing the work.
Which one you want
DCF is the first-principles method: forecast cash flows, discount them, and see what the business is worth on its own merits. EBITDA Multiple, P/E Ratio and P/S Ratio are the comparables approach — faster, market-anchored, and the way most small-business and SaaS transactions are actually priced. Enterprise Value reconciles the two by adjusting equity value for debt and cash, which is the number an acquirer negotiates. TAM/SAM/SOM sizes the opportunity a growth story rests on, and Equity Dilution shows what each funding round leaves founders holding.
What the numbers mean
Multiples vary enormously by growth rate and sector: a SaaS business growing over 40% a year has historically commanded several times the revenue multiple of one growing at 10%, and private companies trade at a discount to public comparables for illiquidity. Treat any single multiple as the midpoint of a wide range. On dilution, the figure founders consistently underestimate is the cumulative effect — three rounds at 20% each leave roughly 51%, not 40%, because each round dilutes the post-money cap table rather than the original one.