Calculate the financial impact of website downtime on your business. See annual, monthly, and per-incident revenue loss based on your traffic value.
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Website downtime directly impacts your revenue. Our uptime calculator helps you understand the true cost of outages and set appropriate SLA targets for your business.
Uptime refers to the percentage of time your website or service is operational and accessible. Industry standards aim for '9s' of availability - 99.9% (three nines) allows about 8.7 hours of downtime per year, while 99.99% (four nines) allows only 52 minutes.
Downtime Cost Formula
Every minute of downtime means lost sales and abandoned carts.
Downtime affects customer trust and contract renewals.
Calculate impact on dependent applications and partners.
Lost ad impressions and viewer engagement during outages.
Justify investments in redundancy, monitoring, and high-availability systems.
Determine appropriate uptime guarantees for customers and vendors.
Prioritize outage resolution based on financial impact.
99.9% is considered standard for most websites. Critical services often target 99.99% or higher. Each additional '9' significantly reduces allowed downtime but increases infrastructure costs.
Divide your monthly online revenue by the number of operating hours. For 24/7 sites, use monthly revenue รท 730. For business hours only, adjust accordingly.
This calculator focuses on direct revenue loss. Indirect costs like brand damage, SEO impact, customer churn, and recovery efforts can multiply the total impact by 2-10x.
Cloud SLAs typically measure monthly uptime percentage and offer credits for violations. Read the fine print - some exclude scheduled maintenance or only count complete outages.