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🔢Standard CalculatorMath 🔬Scientific CalculatorMath · 30+ functions 📊Percentage CalculatorMath · 3 modes 📐Ratio CalculatorMath ½Fraction CalculatorMath 🧮Quadratic SolverMath · ax²+bx+c=0 📉Statistics CalculatorMath · Mean, SD, more 🔲Matrix CalculatorMath · 2×2 operations 𝕀Roman NumeralsMath · 1–3999 💻Number Base ConverterMath · BIN OCT HEX

⚖️Unit ConverterConversion · 200+ units 💱Currency ConverterConversion · Live ECB rates ₿Crypto ConverterConversion · Live CoinGecko 🎨Color ConverterConversion · HEX RGB HSL 🌍Time Zone ConverterConversion · 20 zones 🔌Binary ArithmeticConversion · AND OR XOR

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💪BMI CalculatorHealth · WHO ranges 🥗Calorie / TDEEHealth · Mifflin–St Jeor 💧Water IntakeHealth · Daily hydration 🤰Pregnancy Due DateHealth · EDD from LMP 🌙Sleep CalculatorHealth · 90-min cycles

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🎓GPA CalculatorAcademic · 4.0 scale 📝Grade CalculatorAcademic · Weighted

⚡Ohm's LawEngineering · V I R P

📏Area & PerimeterGeometry · 2D Plane Shapes 📦Volume & Surface AreaGeometry · 3D Geometric Solids 📐Triangle CalculatorGeometry · Multi-mode Solver ⭕Circle CalculatorGeometry · Radius, Sector & Arc 📈Coordinate GeometryGeometry · 2D/3D Distance & Slope

🎲Random Number GenUtility · Dice, UUID 🔐Password GeneratorUtility · Crypto secure #️⃣Text ToolsUtility · Word count