Measure and analyze test coverage metrics to assess software testing quality. Calculate line coverage, branch coverage, function coverage, and condition coverage with industry standard comparisons and quality gate checks.
Enter the number of covered items and total items from your test coverage report. Use 'All Metrics' to analyze multiple coverage types simultaneously.
You might also find these calculators useful
Calculate code complexity metrics using McCabe's cyclomatic complexity method
Analyze and compare algorithm time and space complexities
Analyze code patterns and estimate algorithm runtime
Convert between binary, decimal, hex & octal
Code coverage is a critical metric for assessing the effectiveness of your software testing. Our calculator helps you analyze line coverage, branch coverage, function coverage, and condition coverage to ensure your tests adequately exercise your codebase. Get instant insights with industry standard comparisons and actionable recommendations.
Code coverage measures the percentage of your source code that is executed during testing. It's a key indicator of test suite effectiveness, though it should be used alongside other quality metrics. Different coverage types measure different aspects of code execution.
Coverage Formula
Coverage % = (Covered Items / Total Items) × 100Coverage metrics help identify untested code paths, reducing the risk of bugs reaching production and improving overall software quality.
Low coverage in critical modules highlights potential risk areas that need additional testing attention and review.
Many industry standards (DO-178B, ISO 26262, IEC 62304) mandate specific coverage levels for safety-critical software.
Coverage metrics provide objective measures for code review and team performance, encouraging test-driven development practices.
Set minimum coverage thresholds in your continuous integration pipeline to prevent poorly tested code from being deployed.
Use coverage metrics to identify modules needing additional test development and plan testing efforts accordingly.
Include coverage reports in pull requests to ensure new code is properly tested before merging.
Document coverage levels for audits in regulated industries like aerospace (DO-178B) and automotive (ISO 26262).
Industry standards typically recommend: 80%+ as good, 90%+ as excellent. SonarQube defaults to 80%, while safety-critical standards like DO-178B Level A require 100% MC/DC coverage. The right target depends on your project's risk profile and industry requirements.