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Sales and Marketing · Calculator · Free

Understand a change in your rating Bad Review Impact Calculator

See how new one-star ratings change a weighted average. Separate the rating arithmetic from assumptions about leads or revenue.

Runs in your browser. Nothing to install. Save the result or embed it on your site.

Illustration for the Bad Review Impact Calculator: a calculator mark on a sales and marketing background in The LeadFlow Pro colours.
Working toolUse it before you book anything.

Your numbers

What that means

Your rating after 1 one-star review: 4.64
4.64
Your rating after 1 one-star review
Down 0.06 from 4.70
13
Hypothetical five-stars to return
0.06
Rating change
61
Reviews after additions
Not determined
Revenue effect
ratings do not measure sales
What review volume does to the damage

The same bad review on a bigger pile barely moves the needle.

25 reviews-0.14
50 reviews-0.07
100 reviews-0.04
250 reviews-0.01
500 reviews-0.01

A larger existing review count reduces each new rating's effect on the average. Review the actual feedback, protect customer privacy, and respond with verified facts.

This tool calculates rating averages only. It does not estimate lost leads or revenue. Displayed starting ratings may be rounded; exact underlying rating totals can differ. Customers choose their own ratings without incentives or pressure.

What this assumed

  • Only weighted rating averages are calculated. Lead and revenue effects cannot be determined from ratings alone.

Runs in your browser. Nothing you type is sent anywhere.

This is an estimate

This tool returns an estimate based on the numbers you entered. Your real result depends on your own costs, rates and conditions. Check it against your own records before you make a decision with it.

What this tool actually does for you

Who it is for

Anybody who just got their first bad review and feels sick about it.

The problem it points at

A bad review feels personal. What matters is what it does to the number people sort by.

What you walk away with

A weighted-average comparison and a clearly labeled hypothetical rating scenario.

How to use it

Takes about two minutes. Be honest with the numbers, the tool is not going to tell anybody.

  1. Enter your rating and review count.
  2. See what one, three or five bad reviews do.
  3. Use the arithmetic to understand the average, then review the actual feedback.
Run it now

Keep learning

Go a little deeper.

See how this tool fits a practical task, with a guide you can follow at your own pace.

Put this tool on your own website

Free forever. I host it. You keep it.

This is a real lead magnet you can run on your own site tonight. Somebody lands on your page, plays with the numbers, sees what their problem costs, and now they are on your website instead of a competitor's. Costs you nothing, and I keep it working.

  1. Scroll up and press Put this tool on my website. The code appears right there, no form.
  2. Copy the one line you get.
  3. In your website editor, add an Embed, HTML or Custom Code block on whatever page you want it on.
  4. Paste it in, save, publish.
  5. Check it on your phone, then send people to that page.

Works on

WordPress, Wix, Squarespace, Shopify, GoDaddy, Webflow, Duda, HubSpot, ClickFunnels, or plain HTML. Anywhere that takes an embed code.

What it costs you

Nothing. No monthly fee, no expiring trial, no watermark you have to pay to remove. If you get stuck putting it in, text me at (903) 500-8898 and I will help you place it.

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One useful tool is the proof

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A five-page site built to capture leads and follow up, in accounts you own. The result is a working site, not a promise of leads.