Website Downtime Cost Calculator
Estimate how much revenue your business loses when your website goes offline.
Free · No data stored · Instant results
Total Revenue Loss
Estimated revenue lost during downtime period
Breakdown
- Revenue Lost Per Hour
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- Visitors per Hour
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- Conversions per Hour
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This estimate shows the immediate revenue loss during downtime. It does not include long-term effects such as SEO damage, customer churn, or brand trust impact.
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How the downtime cost is calculated
We calculate your average revenue per hour based on your traffic and conversion data, then multiply it by the length of the downtime.
- Daily visitors ÷ 24 = visitors per hour
- Visitors × conversion rate = conversions per hour
- Conversions × order value = revenue per hour
- Revenue per hour × downtime = total loss
Example
A site with 2,400 daily visitors, a 2% conversion rate, and a $75 average order value loses about $150 per hour. A 3-hour outage results in $450 lost revenue.
Who is this calculator for?
- E-commerce stores
- SaaS companies
- Agencies and consultants
- Content and lead-generation websites
Frequently Asked Questions
It provides a conservative estimate based on your inputs.
Yes. Frequent or prolonged downtime can impact rankings.
No. All calculations run locally in your browser.
No personal data collected · Estimates only · Last updated: 2026