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Attribution & Tracking

Blended ROAS & MER Calculator

Calculate blended ROAS and MER across every channel from total revenue and ad spend: the single, un-double-countable number that shows real efficiency.

Your numbers

€

All revenue in the period (your source of truth)

€

Every channel, Meta, Google, TikTok, email, etc.

%

Optional, to compare against break-even MER

Blended ROAS (MER)
4.00x
Revenue ÷ total spend
Marketing % of revenue
25.0%
Spend ÷ revenue
Break-even MER
1.67x
Minimum to be profitable
Your blended ROAS / MER is 4.00x, for every €1 spent across all channels you make €4.00 in real revenue. That clears your 1.67x break-even MER, so blended marketing is profitable. Unlike per-platform ROAS, MER can't be double-counted, it's the single number a CFO trusts.
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