How to Calculate Load Test
What is Load Test?
A load testing metrics calculator computes throughput, response time percentiles (p50, p95, p99), and error rates from load test results. p99 latency (the response time experienced by the slowest 1% of users) is often the most important metric for user experience.
Step-by-Step Guide
- 1Simulate user load gradually
- 2Monitor system metrics
- 3Determine breaking point
Worked Examples
Input
Increase to 10,000 concurrent users
Result
System handles up to 8,000
CPU hits limit at 8k
Common Mistakes to Avoid
- ✕Wrong parameters
- ✕Missing adjustments
Frequently Asked Questions
What does this calculator do?
Set parameters
How do I use this calculator?
Run calculation
Ready to calculate? Try the free Load Test Calculator
Try it yourself →