Marketing ROI Calculator.
See the math before you spend the money.
Five focused calculators sharing one benchmark dataset: SEO, Paid Ads, Social, Web Design, and a Composite mode that bundles all four. Every number is industry-sourced. The math is shown. Email-gated PDF is optional - the on-screen number is always free.
SEO ROI Calculator
Project organic-search revenue and payback period from your monthly SEO investment. Uses a 9-month ramp curve sourced from agency benchmarks - SEO is not linear.
Benchmarks used
- Avg website conversion rate: 2.35% (Unbounce 2025 Conversion Benchmark Report)
- SEO ramp curve months 1-9: 0%, 5%, 15%, 30%, 50%, 70%, 85%, 95%, 100% (agency consensus)
- Position-1 organic CTR ~27% / position-10 ~2.5% (Backlinko CTR study 2024)
Paid Ads (PPC) ROI Calculator
Predict ROAS, cost-per-lead, and break-even AOV from your ad spend and landing-page conversion rate.
Benchmarks used
- Google Ads avg search CTR: 3.17% (WordStream 2025 industry benchmarks)
- Google Ads avg search conversion rate: 4.40% (WordStream 2025)
- Google Ads avg CPC across industries: $2.69 (WordStream 2025)
Social Media ROI Calculator
Estimate monthly leads and cost-per-lead from organic social. Uses a 12-month average - organic social is a long-horizon brand play.
Benchmarks used
- Avg organic reach: 5.2% of followers (Hootsuite 2025 Social Trends)
- Avg engagement rate (mixed platforms): 1.2% (RivalIQ 2025)
- Avg social-to-lead conversion: 1.9% (HubSpot benchmark report 2025)
Web Design ROI Calculator
Quantify the revenue lift from a conversion-focused redesign. Redesigns typically lift conversion 1.2x-2.5x.
Benchmarks used
- Avg website conversion rate: 2.35% / top 10% above 11% (Unbounce 2025)
- Redesign conversion lift range: 1.2x-2.5x typical (CXL Institute meta-analysis)
- Avg agency redesign investment: $5K-$25K (DesignRush 2025 pricing survey)
Composite ROI - All 4 Channels Bundled
If you invest in SEO + Paid Ads + Social + a new Site, what is the projected 12-month return? Enter one set of business numbers and let us run all four models with shared benchmarks.
Composite assumptions
- SEO model adds incremental organic traffic ramping over 9 months
- Paid Ads model converts spend at industry-avg CPC + CVR
- Social adds incremental engaged traffic at 5.2% organic reach
- Redesign lifts site-wide conversion 1.5x (mid-range)
- All channels share the same AOV; channel overlap reduced 15% to avoid double-count
Built by MAD Monkey Media. Benchmarks sourced from Unbounce, WordStream, Hootsuite, HubSpot, RivalIQ, Backlinko, and CXL Institute (2024-2025). Numbers shown are projections, not guarantees. Real results depend on execution, market conditions, and a hundred things outside any spreadsheet. We share the math so you can audit it.