Free Tool
Shark Tank Valuation Calculator
Turn any Shark Tank ask into an implied company valuation, or flip the math to find equity from an investment. The same formula the sharks use to size up every pitch.
Ask amount + equity offered → implied valuation
This is the calculation every Shark Tank pitch opens with: “I'm asking for X dollars for Y percent of my company.”
Implied company valuation
$1,000,000
$100,000 for 10% implies a $1,000,000 valuation.
This tool is for education and entertainment. It mirrors the simple math the sharks use on air, not a formal business valuation.
How Shark Tank valuations work
Every pitch on Shark Tank opens with the same sentence: “I'm asking for [amount] for [percentage] of my company.” That single line contains a full valuation. Divide the dollar amount by the equity percentage, and the result is what the founder believes the whole company is worth. Ask for $100,000 for 10%, and the math says the company is worth $1,000,000.
The sharks spend the rest of the pitch testing whether that number holds up. They look at revenue, margins, growth, and how much of the business the founder is willing to give up, then counter with their own number. Almost every deal that closes on air ends at a different valuation than the one the founder walked in with.
The Shark Tank valuation formula (also known as the equity calculator)
Whether you call it a valuation calculator or an equity calculator, it is the same three-number relationship, and knowing any two of the numbers gives you the third:
- Valuation = investment ÷ equity percentage
- Equity percentage = investment ÷ valuation
- Investment = valuation × equity percentage
The calculator above runs all three directions, plus a fourth, looser check: comparing an asking valuation against a simple revenue multiple, the same gut-check a shark runs mentally before countering an offer.
Worked examples from real Shark Tank pitches
Real deals make the formula concrete. Here is what a few famous Shark Tank pitches actually asked for, and what they walked out with once the negotiating was done.
Scrub Daddy (Season 4)
Asked for $100,000 for 10%, implying a $1,000,000 valuation. Closed for $200,000 for 20% with Lori Greiner, a $1,000,000 deal valuation.
Squatty Potty (Season 6)
Asked for $350,000 for 5%, implying a $7,000,000 valuation. Closed for $350,000 for 10% with Lori Greiner, a $3,500,000 deal valuation.
Simply Fit Board (Season 7)
Asked for $125,000 for 15%, implying a $833,333 valuation. Closed for $125,000 for 20% with Lori Greiner and Kevin O'Leary, a $625,000 deal valuation.
Tipsy Elves (Season 5)
Asked for $100,000 for 5%, implying a $2,000,000 valuation. Closed for $100,000 for 10% with Robert Herjavec, a $1,000,000 deal valuation.
Why the numbers move between the ask and the deal
Look at Squatty Potty above: the founders asked for $350,000 for 5%, a $7,000,000 ask valuation. Lori Greiner's counter kept the dollar amount the same but doubled the equity to 10%, which cut the deal valuation in half to $3,500,000. Same investment, completely different valuation, because equity moved. That is the entire negotiation compressed into one number, and it is why checking both the ask and the deal side of a pitch tells you so much more than either number alone.
FAQ
How do Shark Tank valuations work?
Every founder opens with an ask: a dollar amount in exchange for a percentage of equity. Dividing the ask by that percentage gives the implied valuation. Asking for $100,000 for 10% implies the founder believes the company is worth $1,000,000. The sharks then negotiate up or down from that starting number based on revenue, margins, and how much they trust the pitch.
What is equity in Shark Tank?
Equity is the percentage of company ownership a founder trades for a shark's cash. If a shark invests $200,000 for 20% equity, they now own one-fifth of the company and are entitled to that share of any future profit or sale price. The founder keeps the rest, along with control, unless the deal says otherwise.
What is the Shark Tank valuation formula?
Valuation = investment amount divided by the equity percentage, expressed as a decimal. $100,000 divided by 0.10 (10%) equals a $1,000,000 valuation. The same formula runs in reverse to find equity: equity percentage = investment divided by valuation.
Why does the deal valuation on air sometimes differ from the ask?
Because the sharks negotiate. A founder might ask for $100,000 for 5% (a $2,000,000 ask valuation) and walk out with $100,000 for 10% instead, which cuts the implied valuation in half to $1,000,000. That gap between ask valuation and deal valuation is the negotiation, and it shows up on almost every episode.
Is this valuation calculator accurate for real fundraising?
The math is the same math VCs and angel investors use (investment divided by equity equals valuation), so the formula itself is correct. But a real valuation also weighs revenue, growth rate, competition, and legal terms, not just the ask-and-equity numbers a pitch opens with. Treat this tool as a quick gut-check, not a substitute for a professional valuation.
See the deals behind the math
Every ask, equity split, and deal valuation from 1,400+ Shark Tank pitches, all in one directory.