calcatom

Powerful browser calculator with scientific functions and instant currency conversion — designed for developers, students, and professionals.

🔬 Scientific Calculator
Complete mathematical functions, parentheses, exponents, trigonometry, and logarithms. Optimized scientific mode with clear, adjustable buttons.

💱 Live Currency Converter
Convert 150+ currencies with real-time rates. Auto-updates, guaranteed precision, and support for free private API keys.

🎛️ Clean & Responsive UI
Tactile haptic feedback, sound effects, keyboard shortcuts, smooth animations, and a seamless design that works in any browser window.

🧮 More Calculators
BMI Calculator, Tip Calculator, and Percentage Calculator (3 modes). Everything you need in one place.

⚡ Full Calculator Controls
AC and C buttons to clear input, Backspace for step-by-step deletion, +/- to toggle sign, and percentage button.

🛡️ Privacy First
No tracking, no accounts, no analytics. Your calculations and conversions stay private.

📌 Perfect for:
• Developers and engineers
• Students and teachers
• Finance and business users
• Daily quick calculations
• Weight tracking and BMI

Lightweight, fast, and free. Install once — calculate anywhere.