Share of Voice Calculator
Excess share of voice is the investment.
Share of voice
7.5%
against 3.4% share of market
Spending above your market share is what buys growth — the excess share of voice is the investment. Brands that hold share of voice equal to share of market tend to hold share and no more.
How the Share of Voice Calculator works
Spending above your market share is what buys growth — the excess share of voice is the investment. Brands holding share of voice equal to share of market tend to hold share and no more, which is a defensible choice as long as it is a choice.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
What is share of voice?
Your advertising spend as a share of total category advertising spend. It measures how much of the conversation you own.
What is excess share of voice?
Share of voice minus share of market. Long-run evidence links positive excess share of voice to subsequent share growth, and negative to share decline.
How do I estimate category spend?
Industry data, competitor filings, or ad intelligence tools. All are approximate, so treat share of voice as a directional measure rather than a precise one.
Does it apply to organic visibility?
Yes — search share of voice measures the same idea for organic results. The mechanism differs but the strategic logic is the same.