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Downtime Cost Calculator

Estimate revenue, lead, and productivity impact for outages from one hour to three days.

Primary use
Put a practical cost range on website downtime for planning and prioritization.
Estimated time
About 3 minutes
Input type
Manual answers
Use the tool All free tools

What This Calculator Estimates

Use a few business assumptions to estimate revenue at risk, lead value, and staff productivity cost during an outage. It gives a planning range for outages from one hour through three days.

  • Adjust every input to reflect your own sales cycle and operating hours.
  • Results are estimates for prioritization, not a forecast, invoice, or financial advice.

When to Use It

Use it when budgeting for monitoring, backup recovery, hosting changes, incident response, or a preventative care plan. Revisit the assumptions when revenue, staffing, or website dependency changes.

What It Cannot Measure

An outage can also affect trust, repeat purchases, advertising spend, support load, contractual obligations, and ranking visibility. Those effects are real but too business-specific to estimate responsibly with a generic calculator.

Estimate website downtime impact

Adjust your assumptions for an instant estimated cost range. Results are estimates only, not financial advice.

Your assumptions

Estimated direct impact per hour

$271

Current 4-hour estimate: $812–$1,353

Revenue
$78/hr
Leads
$125/hr
Productivity
$68/hr

Outage scenarios

DurationEstimated range
1-hour outage$203–$338
4-hour outage$812–$1,353
8-hour outage$1,624–$2,706
24-hour outage$4,871–$8,119
3-day outage$14,614–$24,356

Methodology

  • Revenue impact per hour = monthly revenue × website-dependent revenue percentage ÷ monthly operating hours.
  • Lead impact per hour = monthly leads ÷ monthly operating hours × lead conversion rate × average sale value × website-dependent revenue percentage.
  • Productivity impact per hour = affected employees × hourly employee cost × productivity lost percentage.
  • The direct hourly estimate is the sum of those three values; each outage scenario multiplies it by its duration.
  • The displayed low and high values use a ±25% uncertainty band and do not include indirect or reputational effects.

Limitations

  • Does not predict actual outage duration, recovery time, or customer behavior.
  • May double count value when lead value is already included in reported revenue.
  • Excludes reputational harm, contractual penalties, advertising waste, and long-term search effects.
  • Not financial, accounting, insurance, or legal advice.

Privacy

Inputs and calculations stay in your browser. Rescue404 does not ask for credentials, analytics access, or financial records.

FAQ

Plain answers about what this tool does and does not claim.

Why does the calculator show a range? +
Outage impact depends on timing, customer behavior, and how quickly a site recovers. The range applies a ±25% uncertainty band to the direct estimate.
Should I include monthly revenue and lead value? +
Yes, when both reflect separate value streams. If leads eventually become the same revenue already counted, set one stream to zero to avoid double counting.
Does this calculate reputational damage? +
No. Reputation and lost future business vary too much to assign a credible universal value.
Are my inputs sent to Rescue404? +
No. Calculations run in your browser. Rescue404 does not receive these assumptions unless you choose to share them separately.
Can a care plan guarantee no downtime? +
No. Preventative maintenance can reduce risk and speed response, but no provider can guarantee a website or third-party service will never fail.

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