Marketing ROI calculator.

Calculate marketing ROI, ROAS, CPL, CPA, and payback period. The numbers that separate channels worth scaling from ones quietly leaking money.

Why marketing ROI is the conversation that decides everything.

If you can't quote your ROI by channel, you're not running marketing — you're spending money and hoping. This calculator gets you the answer.

  1. 01
    It separates winners from leaks.A 5:1 channel and a 0.5:1 channel are wildly different — but most teams treat them the same in budget meetings.
  2. 02
    It tells you when to scale.ROI > 500% means push the budget up. ROI < 100% means stop scaling and start fixing.
  3. 03
    It exposes payback timing.A campaign with great ROI but 12-month payback is a cash flow problem dressed as a win.
  4. 04
    Investors care.Marketing ROI is one of the first three numbers a smart investor asks about. Don't walk into that meeting without it.

Calculate your ROI.

Total spend — ads, creative, agency fees, tools.

Revenue attributable to this campaign.

Optional — needed for cost per lead.

Optional — needed for CPA and payback.

Average total revenue per customer. Needed for payback period.

How to improve marketing ROI.

  1. 01
    Raise conversion rates.A 1% CRO win can drop your CPA by 25%. Test landing pages and forms before raising bids.
  2. 02
    Tighten targeting.Cut audiences and keywords that convert below average. Concentrate spend on what works.
  3. 03
    Improve creative & messaging.Higher CTR and engagement → lower CPC → better ROI. Often the cheapest lever.
  4. 04
    Bias to organic.SEO and content compound. Paid stops the moment you stop spending. Mix matters.

Industry benchmarks.

B2B SaaS — CPL $50-200 · CPA $200-5003:1 - 5:1 ROAS · 300-500% ROI
E-commerce — CPL $10-50 · CPA $30-1002:1 - 4:1 ROAS · 200-400% ROI
Professional Services — CPL $100-500 · CPA $500-20004:1 - 10:1 ROAS · 400-1000% ROI
B2C Subscription — CPL $20-100 · CPA $50-2002:1 - 4:1 ROAS · 200-400% ROI

CPL vs. CPA — what each tells you.

Top of funnel vs. full funnel.

CPL measures how cheaply you generate interest. CPA measures how cheaply you generate paying customers. A great CPL with a terrible CPA usually means you have a conversion problem, not a traffic problem.

Cost per lead (CPL)Cost ÷ leads — top-of-funnel efficiency
Cost per acquisition (CPA)Cost ÷ customers — full-funnel efficiency
CPA must be < LTVMandatory for sustainable growth
Compare CPL by channelFind your most efficient lead sources

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Want better ROI? Start with a better website.

Even the best campaigns hit a wall if your site doesn't convert. I build websites and SEO foundations that lift conversion rate and reduce paid dependency — the two highest-leverage levers on marketing ROI.

Email me

Built by Taro Schenker — full-stack developer who works with startups and local businesses.