Marketing
Marketing math is simple until money is involved. These calculators cover the numbers that decide whether a campaign lives or dies: break-even ROAS before you scale ad spend, CPM/CPC/CTR conversions without a spreadsheet, a reality check on influencer rates, Amazon ACoS and TACoS, email click-to-open rates, and the LTV-to-CAC ratio your accountant actually cares about.
No vanity metrics — just the figures you'd defend in a budget meeting.
Break-Even ROAS Calculator
Find the break-even return on ad spend and allowable ad spend from margin, price and fees.
CPM, CPC & CTR Calculator
Convert between CPM, CPC, CTR, impressions, clicks and spend for a single ad scenario.
Influencer Fair Rate Calculator
Estimate a sponsorship rate range from expected views, engagement and usage-rights add-ons — not an authoritative price.
Amazon ACoS & TACoS Calculator
Calculate Amazon advertising ACoS and account-wide TACoS from ad spend, ad sales and total sales.
YouTube RPM vs. CPM Ad Revenue Calculator
Calculate effective YouTube RPM from CPM, monetized impressions and total views, using the Partner Program's 55% revenue share.
Video Safe Zone Overlay Generator
Get pixel-accurate safe-zone margins for TikTok, Instagram Reels and YouTube Shorts UI overlays on a 1080×1920 video.
Email Click-to-Open Rate (CTOR) & Campaign ROI Calculator
Calculate email CTR and CTOR side by side, plus revenue per recipient and the cost of sending to an unengaged list.
LTV to CAC Ratio & Payback Period Calculator
Calculate LTV:CAC ratio and payback period in months, then check both against commonly cited SaaS health benchmarks.
Questions
What ROAS do I need just to break even?
Divide 1 by your margin before ad costs. A product with a 40% margin breaks even at 2.5x ROAS, and anything below that loses money even though the dashboard looks busy. The break-even calculator does this from your real costs, not a guess.
How are CPM, CPC and CTR connected?
CTR is clicks divided by impressions, CPC is spend divided by clicks, and CPM is spend per thousand impressions. Know any two and you can work out the third, which is handy when a platform only reports one of them.
Is a 3:1 LTV-to-CAC ratio really the target?
It's the rule of thumb most subscription businesses use, so treat it as a starting point rather than a law. A longer payback period or thin margins can make 3:1 too low. Plug in your own numbers and see where you land.