PPC ROI Calculator
Compare PPC efficiency and profitability without treating ROAS and ROI as interchangeable. Enter ad spend, clicks, conversion rate, average order or deal value, and an optional agency fee. The calculator estimates revenue, total cost, CPC, CPA, ROAS, ROI, and break-even thresholds from the same inputs.
Return on ad spend
1.50:1
- ROI
- 50.0%
- Cost per click
- $2
- Cost per acquisition
- $67
- Break-even CPA
- $100
- Break-even ROAS
- 1.00:1
ROAS divides ad-attributed revenue by ad spend. ROI subtracts total cost, including the optional agency fee, then divides the return by total cost. The brief defines these formulas without prescribing an industry benchmark.
Marketing & AEO Tool Suite brief § C5 (ROAS = revenue/ad spend; ROI uses total cost including optional agency fee)
Explain my results with AI
Optional. One click generates a short plain-English summary. The calculator and exports still work if this fails.
Formula (Marketing & AEO Tool Suite brief § C5): CPC = ad spend / clicks; conversions = clicks × conversion rate; CPA = total cost / conversions; ROAS = revenue / ad spend; ROI = (revenue − total cost) / total cost. Total cost includes the optional agency or management fee, while ROAS intentionally uses ad spend only.
ROAS answers how much attributed revenue each advertising dollar generated. ROI answers whether the return exceeds the fuller cost entered in the calculator. Because margins, attribution methods, sales cycles, and operating costs vary, the page does not invent a universal good ROAS or ROI benchmark. Use the editable inputs and break-even outputs for your own scenario.
Frequently asked questions
- How is PPC ROI calculated?
- PPC ROI = (ad-attributed revenue − total cost) ÷ total cost. Total cost includes ad spend plus the optional agency or management fee.
- What is the difference between ROAS and ROI?
- ROAS divides ad-attributed revenue by ad spend only. ROI measures return after total cost, including an optional agency fee. The Marketing & AEO Tool Suite brief § C5 defines these formulas without prescribing an industry target. Source: https://docs.google.com/document/d/1qo2OTZnD_qlI-MrLuNjeiW6QaNXmBScoGpN6ruCjMlc/edit
- How are CPC and CPA calculated?
- Cost per click (CPC) is ad spend ÷ clicks. Estimated conversions are clicks × conversion rate, and cost per acquisition (CPA) is total cost ÷ estimated conversions. CPA is unavailable when estimated conversions are zero.
- What are break-even CPA and break-even ROAS here?
- With margin excluded, break-even CPA equals average revenue per conversion. Break-even ROAS is the revenue-to-ad-spend ratio needed for revenue to cover ad spend plus the optional agency fee.
Canonical page: https://withstoryline.com/tools/ppc-roi-calculator