CalcBoard - Scientific Calculator 作者: PeakwayHQ

CalcBoard is a full-featured scientific calculator that lives in your browser sidebar. Access it instantly with one click or keyboard shortcut (Ctrl+Shift+K / Cmd+Shift+K).

✨ FEATURES

Scientific Functions
• Trigonometry: sin, cos, tan and inverse functions
• Logarithms: log₁₀ and natural log (ln)
• Powers: square, cube, custom exponents, square root
• Constants: π and e

Developer Tools
• Base conversion: Decimal, Hexadecimal, Binary
• Perfect for programmers working with colors, memory addresses, or bitwise operations

Unit Converter
• Length: mm, cm, m, inches, feet
• Weight: g, kg, lb, oz
• Temperature: Celsius, Fahrenheit, Kelvin
• Data: B, KB, MB, GB, TB

Productivity
• Calculation history - never lose your work
• Memory functions: MC, MR, M+, M−, MS
• Keyboard shortcuts for power users
• Clean, dark interface that's easy on the eyes

🔒 PRIVACY
• No account required
• No data collection
• Works completely offline
• Your calculations stay on your device

Free forever. No ads. No tracking.