---
title: "Reddit vs Cold Email ROI Calculator: Cost Per Customer | OneUp Today"
description: "Free ROI calculator comparing cost per customer across Reddit DMs, cold email, and paid ads. Plug in your funnel and see which channel is cheapest."
url: https://oneup.today/tools/reddit-roi-calculator
---

Free Tool

# Reddit vs Cold Email ROI Calculator

What does a customer actually cost you on each channel? Plug in your funnel and compare cost per customer across Reddit DMs, cold email, and paid ads.

Average value of a customer

$

## Reddit DMs (OneUp Today)

Monthly tool cost

$

DMs sent / month

Reply rate

%

Reply to customer

%

## Cold email

Monthly cost (tools, lists)

$

Emails sent / month

Reply rate

%

Reply to customer

%

## Paid ads

Monthly ad spend

$

Cost per click

$

Landing page conversion

%

Signup to customer

%

## Cost per customer

Reddit DMs (OneUp Today)Cheapest$4.75 / customer

4.0 customers / mo · 2,005% ROI

Cold email$33.33 / customer

3.0 customers / mo · 200% ROI

Paid ads$333 / customer

1.5 customers / mo · -70% ROI

With your numbers, Reddit DMs (OneUp Today) wins at $4.75 per customer.

From OneUp Today

## Reddit is the cheap channel. We run it for you.

OneUp Today finds the people on Reddit asking for what you sell, drafts a personalized DM in your voice, and tracks every reply to revenue, for a flat monthly price. No per-click bidding, no dying cold inboxes.

[Find your subreddits →](https://oneup.today/tools/subreddit-recommender)

Or [see how OneUp Today works](https://oneup.today/marketing)

Related: [AI Subreddit Recommender](https://oneup.today/tools/subreddit-recommender) · [Reddit Lead Finder](https://oneup.today/tools/reddit-lead-finder) · [Cold DM generator](https://oneup.today/tools/dm-generator)

## FAQ

How is cost per customer calculated?

For each channel we take your monthly cost and divide by the customers it produces. Customers come from your own funnel inputs: volume multiplied by reply (or click) rate multiplied by the rate at which those convert to paying customers. Change any number and the comparison updates live.

Why does Reddit usually come out cheapest?

Personalized Reddit DMs to people who just asked for a solution reply far better than cold email (single digits) and cost nothing per message beyond a flat tool subscription, while paid ads charge per click whether or not anyone converts. The calculator lets you plug in your own rates to check it for your numbers.

What reply rates are realistic?

B2B cold email averages about 3 to 5 percent. A personalized DM to someone actively asking for help can reply 5 to 10 times better. Paid ad landing pages convert roughly 2 to 5 percent of clicks, and only a fraction of those become customers.

Is this calculator free?

Yes, completely free and nothing is sent anywhere. All the math runs in your browser.