1. What is the Service Level Agreement Calculator?

The Service Level Agreement (SLA) Calculator computes the percentage of uptime based on actual uptime hours versus total available hours. It's essential for measuring service reliability and compliance with contractual obligations.

2. How Does the Calculator Work?

The calculator uses the SLA equation:

Where:

• \( Uptime \) — Actual operational hours
• \( Total \) — Total available hours in the period

Explanation: The equation calculates what percentage of the total time the service was available.

3. Importance of SLA Calculation

Details: SLA percentage is crucial for IT service management, cloud services, and any business that guarantees specific availability levels to customers.

4. Using the Calculator

Tips: Enter uptime and total hours in the same units (hours). Both values must be positive numbers, and uptime cannot exceed total hours.

5. Frequently Asked Questions (FAQ)

Q1: What is considered a good SLA percentage?
A: Most businesses aim for 99.9% ("three nines") or higher. Critical services often require 99.99% or better.

Q2: How is downtime typically measured?
A: Downtime is usually measured from when an outage is reported until service is restored, excluding scheduled maintenance.

Q3: Can I use this for monthly SLA calculations?
A: Yes, just convert your time period to hours (e.g., 30 days = 720 hours).

Q4: What's the difference between SLA and uptime?
A: Uptime is raw availability time, while SLA is the contractual guarantee that includes specific terms and remedies.

Q5: Should planned maintenance be included?
A: Typically no, unless your SLA specifically includes maintenance windows in availability calculations.