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Free ecommerce calculators and tools
Free calculators for the numbers behind Google Shopping and Performance Max: what a product earns, what an ad click can cost and which products matter most. No sign-up.
Profit and margin
What a product earns after its costs, and the return it needs from ads.
Break-even ROAS calculator
Free break-even ROAS calculator: find the return each product needs to cover costs. Include margin, VAT, returns and fees, then set a target ROAS.
Markup and margin calculator
Free markup and margin calculator, also a margin calculator UK with VAT in £: get margin, markup, profit and price from cost, for one product or a list.
POAS calculator
Free POAS calculator: enter revenue, costs and ad spend to get your profit on ad spend, break-even (1.0) and profit per ad euro. Formula and example included.
MER and nCAC calculator
Free MER and CAC calculator: enter revenue, marketing and ad spend, orders and new customers to get MER, nCAC, blended ROAS, cost per order and marketing ROI.
Ads
What a budget buys, and how the standard ad ratios are worked out.
Google Ads budget calculator
Free Google Ads budget calculator: turn a daily budget and average CPC into clicks per product, and see the maximum cost per click your margin allows.
Tracking
See what your tracking sends and which blockers stop it.
Product Metrics SDK debugger
Free Product Metrics SDK debugger: paste a tracking request body to decode the compressed base64url event and check it the way the collector does.
Adblocker benchmark
Do ad blockers block conversion tracking? uBlock Origin, Brave, AdGuard and 3 more tested on Google Ads, GA4, Meta and 7 tags, plus what it costs your ROAS.
Embed these calculators on your own site.
The calculators listed here have an “Embed this calculator” section near the foot of their page. It gives you one script tag to paste into your own page: the same maths, no sign-up, and a link back to the full version that you keep.
- Break-even ROAS calculatorembed code
- Markup and margin calculatorembed code
- POAS calculatorembed code
- MER and nCAC calculatorembed code
- Google Ads budget calculatorembed code
Dutch and German versions where they exist.
Dutch and German versions exist for the break-even ROAS and margin calculators.
Run the numbers on one product, or segment all of them.
Product Metrics segments your products by advertising clicks and return against your target, then writes each segment to a Merchant Center label your campaigns use.