Uptime SLA Credit Calculator

Work out uptime sla credit instantly with clear inputs, formula shown and shareable results.

About Uptime SLA Credit Calculator

Cloud SLA credits are tiered percentages of the monthly service charge for the affected service — commonly 10 percent below the commitment, 25 percent below 99 percent and 100 percent below 95 percent. The comparison that matters is against business impact: 345 minutes of downtime costing 143,000 in lost business typically yields a credit of a few hundred.

Formula

Credit tiers

downtime = (100% - uptime) x 43200 minutes; credit = charge x tier percentage (10%, 25% or 100%); compare against downtime hours x business impact per hour

Worked example

With the default values below, Uptime SLA Credit Calculator returns Service credit due of $800.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Monthly service chargeminimum 0: 8,000
Actual monthly uptimeaccepts 0–100 %: 99.2 %
SLA commitmentaccepts 90–100 %: 99.99 %
Business impact per hour of downtimeminimum 0: 25,000

Results

Service credit due: $800.00
Downtime in the month: 346 min
Estimated business impact: $144,000.00
Share of business impact the credit covers: 0.56%

Step by step

1Values used
2Credit tiers
3Service credit due= 800.00
4Downtime in the month= 346 min
5Estimated business impact= 144,000.00
6Share of business impact the credit covers= 0.56

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Are credits automatic?

No. They must be claimed with evidence, usually within 30 to 60 days. Providers do not proactively apply them.

What is excluded from SLA calculations?

Planned maintenance, issues caused by your own configuration, factors outside the provider's control, and often anything not deployed across multiple availability zones.