Precision Tools for Complex World.
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Salary & Work
Calculate take-home pay, overtime, and compensation across the US, UK, and Canada.
View All Salary & Work ToolsEngineering
Precision engineering tools for unit conversion and tolerance analysis.
View All Engineering ToolsFinance & Debt
Optimize your finances with debt payoff and budgeting calculators.
View All Finance & Debt ToolsLegal & Compliance
Verify GDPR risk, labor law compliance, and contract safety.
View All Legal & Compliance ToolsCritical Problem Solvers
Deep-dive analysis into complex financial and legal hurdles facing modern professionals.
Structural Debt
The High-Interest Trap
Over 40% of households are stuck in the "Minimum Payment Trap." Learn the actuarial science of debt escape.
View AnalysisJurisdictional Law
California Wage Rights
Detailed breakdown of California's strict overtime and meal break standards. Know your statutory floors.
View Authority ReportPayroll Precision
Salary Discrepancies
How to audit your own pay stub for miscalculated deductions and benefit withholding errors.
Start AuditWhy Professionals Trust Commonrule
Absolute Accuracy
ISO / NIST aligned constants and arbitrary precision math engine.
Zero Visual Clutter
Designed for one-hand usability and distraction-free calculations.
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