MailROI
Direct mail math, done right.
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Will direct mail actually pay off for you?

Plug in your numbers. Get an honest projection of cost, response rate, revenue, and profit. No fluff, no email gate, no "request a demo."

๐Ÿ“ฌ Postcards ยท letters ยท flyers ๐Ÿ“Š Real DMA benchmarks โšก 60-second estimate

Campaign details

Conservative defaults are pre-filled. Override anything you know.
$
USPS EDDM rate is ~$0.21 postage. Add printing for total.
%
Use 0.5โ€“1% for cold lists, 2โ€“5% for warm/house lists.
%
For a strong offer + good follow-up, 30โ€“60% is realistic.
$
%
Services: 60โ€“80%. Retail/food: 30โ€“55%.
1 = one-time sale. 2 = average customer buys twice. Be honest.

Your projection

Postcard campaign ยท 2,000 mailed ยท 1.5% response
Estimated ROI
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Total campaign cost
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Projected revenue
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Net profit
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Cost per acquired customer
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How we got there

Pieces mailedโ€”
Responders (response rate ร— qty)โ€”
Buyers (conversion ร— responders)โ€”
Revenue (buyers ร— avg sale ร— LTV)โ€”
Gross profit (revenue ร— margin)โ€”
โˆ’ Campaign cost (qty ร— cost per piece)โ€”
Net profitโ€”
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๐Ÿ“ฌ Ready to actually run a campaign?

Inspired Design handles the print + mail for small businesses in Southern California. Get a real, custom quote for your campaign โ€” including design, list, and EDDM routing โ€” within 24 hours.

FAQ โ€” Direct mail ROI, explained

What's a "good" response rate for direct mail?

The DMA's most recent multi-year average is around 4.4% for house lists (people who already know you) and 0.9% for cold prospect lists. For most small-business campaigns to a targeted local list, plan on 1โ€“2% as a realistic baseline. Anything above 3% is excellent.

How much does direct mail actually cost?

For USPS Every Door Direct Mail (EDDM), postage alone is roughly $0.21 per piece. Add printing โ€” postcards run $0.15โ€“$0.40 each depending on size and quantity โ€” for an all-in cost of around $0.40โ€“$0.80 per piece. Letters and flyers are higher. The calculator defaults to $0.75 to give you a conservative number.

Why is my projected ROI negative?

The most common culprits are (1) a too-cold list, (2) low average sale value, or (3) no real LTV. Direct mail rarely pays off on a one-and-done $20 sale. It works best for businesses with $100+ tickets, repeat customers, or service offerings where one mailed lead converts into months of work.

What's the difference between response rate and conversion rate?

Response rate is the percentage of mailed pieces that generate any kind of inbound action โ€” calls, web visits, walk-ins. Conversion rate is how many of those responders actually turn into paying customers. A 2% response with a 40% conversion is way better than a 5% response that doesn't close.

What is EDDM?

Every Door Direct Mail is a USPS program that lets you mail a flyer or postcard to every address on a chosen postal route without buying a mailing list. It's the cheapest way for a local small business to blanket a neighborhood. Ideal for restaurants, salons, contractors, and seasonal services.

Is this calculator accurate?

It uses the standard direct-mail unit economics model used in the industry โ€” pieces ร— response ร— conversion ร— ticket ร— margin โˆ’ cost. The numbers are only as good as your inputs, but the math is the same one a marketing agency would use. For a refined estimate tailored to your actual offer, list, and market, request a quote and we'll model it together.