Planning utility
MER calculator
MER is total revenue divided by total marketing spend over the same period. Use numbers you already trust from finance or your stack—this page does not import data.
Free to use in your browser—no signup or payment required.
← All toolsEnter revenue and marketing spend for the same time window and definition (e.g. all paid media + creator fees + agency). MER answers “how many dollars of revenue per dollar of marketing” at a blended level—not who drove it.
Same period as spend. Digits only or commas; currency symbol optional.
Blended: paid ads, creator payments, tools, agency—whatever you count as marketing.
What this calculator does not do
It does not pull from Shopify, ad platforms, or payouts. It does not split credit across channels or compare creators. Two numbers in, one ratio out.