---
title: "What is Confidence Level?"
url: https://fibr.ai/glossary/confidence-level
description: "Confidence level shows how certain your experiment results are, balancing speed and accuracy to make data-backed decisions and improve optimization efforts."
last_updated: 2026-05-05T11:56:06.981313+00:00
---
Confidence Level indicates how certain you are that your experiment results are accurate. A common benchmark like 95% confidence means you're highly sure your findings aren’t due to chance. Higher confidence levels reduce risk but require more data.

By choosing the right confidence level, you balance speed and certainty. You ensure your decisions are data-backed while maintaining momentum, making your optimization efforts smarter and more trustworthy.

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