Online selling & marketing
Ad CPM, CPC & ROAS Calculator
Turn raw ad numbers into the metrics that matter. Enter spend, impressions, clicks, conversions and revenue from Google, Meta, TikTok or Amazon ads to see CPM, CPC, click-through rate, conversion rate, cost per acquisition and ROAS - plus whether the campaign is profitable at your margin.
How to use the Ad CPM, CPC & ROAS Calculator
- Enter ad spend and impressions.
- Enter clicks and conversions.
- Enter the revenue from those conversions.
- Enter your gross margin for the break-even check.
Formula
Example
$2,000 spend, 250,000 impressions, 3,500 clicks, 90 sales and $7,200 revenue: CPM $8, CPC $0.57, CTR 1.4%, ROAS 3.6x. At a 40% margin, break-even is 2.5x.
Improve ROAS
- Test new creatives regularly
- Tighten audiences and use negative keywords
- Speed up your landing page
- Raise average order value
Related free tools
Frequently asked questions
What is a good CTR?
It varies: around 1-2% on social, higher on search.
What ROAS do I need?
At least 1 ÷ your margin. With a 40% margin you need 2.5x just to break even.
CPA vs CAC?
CPA is per conversion from ads; CAC includes all marketing and sales costs.
Why does my ad platform show different numbers?
Platforms use different attribution windows; use one source consistently.
Results are estimates for planning, not financial advice. Confirm important decisions with a qualified professional. Your inputs stay in your browser and are not sent to Soft2Cloud.
Last updated: November 2026