About CalcCircuit
CalcCircuit is a free utility platform offering calculators, converters, and productivity tools. Our mission is to help you make better decisions with instant, accurate calculations.
Our Tools
Work Tools
Salary, hourly wage, overtime, PTO, and commission calculators.
Finance
Compound interest, savings, loan, mortgage, and investment calculators.
Energy
Electricity, EV charging, solar ROI, and heat pump calculators.
Health & Math
BMI, BMR, percentage, fraction, and unit converters.
Accessibility
We are committed to WCAG AA standards, keyboard navigation, and screen reader support across all tools. Every calculator is designed to work seamlessly on mobile, tablet, and desktop devices.
Privacy First
All calculations happen directly in your browser. We do not collect or store your personal financial data. No account required.