ALL · TOOLS

All Calculators

Pick a material or project. Each calculator shows the formula, an example and common mistakes.

Estimate annual, monthly and per-paycheck take-home pay from gross income, tax rates, deductions and pay periods.

Convert an hourly rate into annual, monthly, weekly and daily pay using hours per week and weeks per year.

Estimate self-employment tax, the deductible half and the effective rate from net profit and the Social Security wage base.