Short answer
MER is total revenue divided by total ad spend across every paid channel. It is the blended check on whether platform-reported ROAS is real.
Formula
MER = revenue / ad spend (all channels)
Worked example
Illustrative: ₹18 lakh revenue and ₹6 lakh spend across Meta and Google. MER is 3.0x. If Meta shows 5.2x ROAS, the gap is usually overlapping attribution.
This term sits in the D2C analytics hub. Use the related pages below for the full playbook.
Frequently asked questions
What does MER mean for a D2C brand?
MER is total revenue divided by total ad spend across every paid channel. It is the blended check on whether platform-reported ROAS is real.
Where should I track MER?
Start in the D2C analytics guide and the linked calculators or product pages. MarQet BI is built around this operating problem.