MentionDropHow to Calculate Your Brand's Share of Voice (Without a Data Science Degree)
Share of voice sounds like an enterprise marketing term. It is not. Here is the formula, the step-by-step calculation, and the tools that do it for you at startup budgets.
Marcos Placona
Founder, MentionDrop
Share of voice sounds like something a Fortune 500 marketing team calculates with a platform contract and a data analyst. Most guides start with a paragraph about methodology before they get to anything useful.
That framing is wrong, and it costs you. Share of voice is just a percentage. It tells you what portion of the conversations in your category is about you versus your competitors. The formula is basic arithmetic. The insight it gives you is not basic.
This post covers what share of voice actually measures, the exact formula to calculate it, how to run the numbers with real examples, and the tools that do it automatically so you do not have to maintain a spreadsheet.
What share of voice actually measures
Share of voice (SoV) is your portion of the total mention volume in your category. If your competitors got 80 mentions last month and you got 20, your SoV is 20 percent. If that ratio flips to 50/50 over six months, something real changed in how people perceive your market position.
Three things SoV tells you that revenue numbers cannot:
Whether the conversation is shifting toward you or away from you. Sales track what already happened. SoV tracks what is happening right now, which often predicts what happens next quarter. A competitor launching a new feature shows up in SoV data before it shows up in churn.
Where the attention is going in your category. If a competitor's SoV is climbing while yours is flat, they are winning the narrative. You are not losing customers yet, but you are losing the conversation.
Whether your marketing efforts are moving the needle. A campaign, a launch, or a notable piece of press coverage should show up as a SoV bump. If it does not, the coverage was not as influential as it felt.
SoV is a direction indicator, not a verdict. The number without the mention feed is nearly useless. But the number paired with the context of what was actually said is one of the most useful signals a founder can track.
The share of voice formula
The formula is:
Your SoV % = (Your brand mentions / Total category mentions) × 100
Total category mentions = your brand mentions + all competitor mentions + industry mentions you are tracking.
That is it. The math is not the hard part. The hard part is getting consistent, accurate mention counts across the right time window.
How to calculate SoV step by step
Step 1: Define your mention universe
Before you can calculate SoV, you need to define what counts as your category conversation. This is not "everything on the internet." It is the mentions that are relevant to your market position.
For a typical SaaS startup, your mention universe looks like this:
- Your brand name and product name
- Direct competitor brand names and product names
- Category keywords someone might use when evaluating options (these go in the denominator but are excluded from your own SoV calculation)
If you were running a brand monitoring tool, your universe might include:
MentionDropBrand24Mention.comGoogle Alerts"brand monitoring tool","mention monitoring","Google Alerts alternative"
The category keywords measure overall conversation volume. Your SoV is calculated against only the keywords tagged as Own Brand or Competitor, so industry terms do not skew the denominator.
Step 2: Collect mention counts over a time window
Pick a window. 30 days is standard because it smooths out daily noise and gives you a clear trend line. Do not use a single day — mention volume varies too much day to day.
For each keyword in your universe, record the total mentions in that window:
| Keyword | Type | Mentions (30 days) |
|---|---|---|
| MentionDrop | Own Brand | 45 |
| Brand24 | Competitor | 120 |
| Mention.com | Competitor | 80 |
| Google Alerts | Competitor | 200 |
Step 3: Run the calculation
Total category mentions = 45 + 120 + 80 + 200 = 445
MentionDrop SoV = (45 / 445) × 100 = 10.1%
Brand24 SoV = (120 / 445) × 100 = 27.0%
Mention.com SoV = (80 / 445) × 100 = 18.0%
Google Alerts SoV = (200 / 445) × 100 = 44.9%
This tells you that Google Alerts dominates the conversation (partly because it is a generic term with non-brand uses), Brand24 has the largest share among dedicated tools, and MentionDrop has a foothold that is still small relative to the incumbents.
What it does not tell you is why. That requires the mention feed.
Step 4: Read the context
A SoV percentage without context is a number without a story. The question is not "what is our SoV?" It is "what is our SoV and why did it change?"
If your SoV dropped 8 points last month, look at the mentions. Did a competitor launch something? Did a viral post mention your competitor but not you? Did you have a quiet month on content? The number tells you something is happening; the mention feed tells you what.
If your SoV went up after a press mention, that is measurable. If it went down after a competitor discount, that is measurable too. SoV is most valuable when it connects to real events.
Common SoV calculation mistakes
Mixing brand mentions with category mentions in the denominator. If you include "brand monitoring tool" in your total, it inflates the denominator and makes your SoV artificially small. Category keywords measure the overall conversation, but they should not appear in your SoV calculation.
Using inconsistent time windows. Comparing a 30-day SoV this month to a 7-day SoV last month is meaningless. Pick one window and stick to it.
Tracking too many competitors. Five competitors with vague names will give you noisy data from accidental mentions. Start with two or three direct competitors. Expand when you have the workflow stable.
Ignoring sentiment. A competitor with 100 mentions that are mostly negative is in a weaker position than one with 60 mentions that are mostly positive. Raw volume without sentiment is incomplete.
Checking once and forgetting. A SoV number from a single month tells you nothing. Weekly or monthly tracking over months gives you a trend line. That trend line is what separates teams that are surprised by market shifts from teams that see them coming.
The tools that do this for you
Calculating SoV manually works once. It does not scale. The good news is that most dedicated monitoring tools calculate it automatically.
MentionDrop tracks your brand and competitor keywords, tags them by type, and surfaces SoV as a side-by-side comparison over rolling 30-day windows. Every mention also comes with sentiment, so you see not just whether the conversation is shifting but whether it is shifting positively or negatively. Plans start at $29/month for Starter (5 keywords, web and Reddit monitoring, SoV tracking) and $59/month for Pro (20 keywords, all channels including webhook). Since it monitors the public web and Reddit rather than social platforms, the coverage is focused on the sources where thoughtful evaluation and comparison actually happen.
Brand24 is the most established option with SoV built in. Their Individual plan starts at $249/month (billed annually at $199/month). Their Team plan starts at $349/month ($299/month annually). Both include sentiment analysis and source breakdowns. Their entry-level plan covers 3 keywords and 2,000 mentions per month, which is enough for a startup that is starting to track SoV. (Pricing verified on brand24.com, May 2026.)
Mention.com is another established option. Their Company plan starts at $599/month (billed annually). It includes sentiment analysis, competitor benchmarking, and share of voice reporting. It is built for teams that need broader coverage that includes social media platforms, which means you are paying for coverage you may not need if your monitoring scope is web and Reddit only. (Pricing verified on mention.com, May 2026.)
The right tool depends on whether you need social media coverage. If you do not, paying for it is a tax on your monitoring budget. MentionDrop is positioned specifically for teams that monitor the web and Reddit without the social layer.
How to track SoV over time without a process
The calculation is simple. The discipline is in the tracking. Most teams that try to measure SoV give up because they do not build it into a recurring habit.
Set a weekly 15-minute recurring slot to check SoV numbers. Look at the 30-day rolling window. Note whether your SoV is up or down compared to the prior week. If it moved more than 5 points in either direction, look at the mention feed to understand why.
Over three months, you will have a trend line. Over six months, you will have enough data to connect SoV movements to real events — a competitor launch, a piece of press coverage, a product update — and to know whether your marketing is actually moving the needle in the conversation.
One earned media mention in a high-authority publication can move SoV in a way that paid acquisition cannot. A single negative thread that gains traction can shift sentiment before you have time to respond. SoV tracking does not prevent these events, but it gives you a window into them while they are still something you can respond to.
The alternative is learning about market shifts the same way your customers do: in a sales call, three weeks after the fact.
For the practical setup that makes this tracking automatic, see our guide to how to track share of voice online without an enterprise budget. For the competitor monitoring setup that feeds SoV data, see how to track competitor mentions online. For a complete monitoring setup that covers the sources where SoV signals actually appear, see the startup brand monitoring guide.