Free marketing calculators
Thirteen metric calculators that take every channel at once, not two boxes.
Most marketing calculators divide two numbers and forget you. These take a row per channel, placement or period, so you see each one alongside the correctly weighted total — the number that survives when platforms disagree about who gets credit.
Everything runs in your browser. Nothing is uploaded, nothing is stored, and no page asks for an email. Each one also shows the SQL that computes the same metric from your live ad accounts, because a number you retype every month is a number that goes stale.
ROAS calculator
Return on ad spend per channel, and the blended number underneath.
Break-even ROAS calculator
The ROAS below which every extra dollar of spend loses money.
Target ROAS calculator
The tROAS that leaves the profit you actually want, not just break-even.
CTR calculator
Click-through rate per placement, and the weighted rate across all of them.
CPC calculator
Cost per click from spend and clicks — or from CPM and CTR when that is all you have.
CPM calculator
Cost per thousand impressions per placement — and the budget that buys a reach target.
Customer acquisition cost calculator
Paid CAC per channel, blended CAC across the business, and what the ratio to LTV says.
AOV calculator
Average order value — and the median next to it, because the mean lies on skewed baskets.
MER calculator
Marketing efficiency ratio — total revenue over everything marketing costs you.
TACoS calculator
Total advertising cost of sales, next to ACoS — and the organic share hiding between them.
Month-over-month growth calculator
Every step in the series, not just the last two months.
Marketing ROI calculator
Return on investment computed from profit — with the ROAS beside it for contrast.
Google Ads budget calculator
Run the funnel backwards: from the conversions you want to the budget that buys them.
Why a row per channel
Add up the revenue Google Ads, Meta and TikTok each claim and you get more revenue than your bank has. Each platform counts the buyers it believes it influenced, and a buyer who saw three ads gets counted three times. A calculator with one spend box and one revenue box cannot show you that; one with a row per channel and a blended total can.
The same applies to rates. Weighted click-through rate across placements is total clicks over total impressions, never the average of the per-placement rates — averaging percentages lets one high-volume placement with a bad rate hide behind two small good ones.
From a typed number to a standing query
A calculator answers a question once. TableBI connects Google Ads, Meta Ads, GA4 and Search Console into one table your own Claude Code can query in SQL, with these same metrics as macros — roas(), ctr(), cpc(), cpa(), aov() — and pins any answer to a live dashboard URL that refreshes itself.
More on the metrics themselves is on the TableBI blog — including blended ROAS across Google Ads, Meta and GA4.