CalcBOX

Free Online Calculators

All 71 tools are free. No sign-up needed.

🔥Popular Tools

🏥Health Dashboard 📈Compound Interest 🖼️Image Compressor 😴Sleep Calculator 🏦Loan Calculator 🔑Password Generator

🎯Browse by Goal

💸Save money / tax 🏥Health management 💻Developer tools 🖼️Image processing

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Lifestyle

9

🏥BMI & Body Fat Calculator | Health Dashboard 🎂Age Calculator ⚡Electricity Cost Calculator 📐Unit Converter Master 🍺Alcohol Metabolism Calculator ⛽Fuel Economy Calculator 😴Sleep Calculator 🤰Due Date Calculator 👶Education Cost Simulator

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Money

14

🧾Sales Tax / VAT & Tip Calculator 🍻Bill Splitter 📊Percentage Calculator 🏷️Discount Calculator 🏦Loan Repayment Simulator 💴Take-Home Pay Calculator 📈Compound Interest Calculator 💹Gross Margin Calculator 📉Break-Even Point Calculator 🏦NISA Investment Simulator 🏠Mortgage Simulator 🏠Rent vs Buy Simulator 🔥Life Plan / FIRE Simulator ☕Habit Cost Calculator

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Text

2

🔤Character Counter 🔄Text Converter

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Date & Time

1

⏰Time & Date Master

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Shopping

1

🛒Shopping Tools

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IT & Dev

16

🎨Color Studio 📋JSON Formatter 🧬Game of Life 🔍Regex Tester 🔢Base Converter 🔑Password Generator 🆔UUID Generator 🔐Encoder / Decoder Suite 🎫JWT Decoder 📝Text Diff 📄Lorem Ipsum Generator 📱QR Code Generator 🖼️Image Resizer & Compressor 📱HEIC Converter 🔍EXIF & Location Data Remover 📝Markdown Preview

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Math & Science

11

🔢Scientific Calculator 🔣Equation Solver 📊Statistics Calculator 🔍Prime Factorization & GCD/LCM 🎲Probability & Combinations 📐Sequence Calculator 📈Graph Plotter 🧮Matrix Calculator 🧭ベクトル計算機 🌊フーリエ級数ビジュアライザー 📐幾何学計算機

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Entertainment

5

🎬Video Creator Tools 🎰Gacha Simulator 🎡Random Roulette ⏳Countdown Timer 🎰Lottery Simulator

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Academic

12

⚗️Chemical Equation Balancer 🧪Interactive Periodic Table 🔬Physics Formula Calculator ⭕Unit Circle Visualizer 📊GPA Calculator 📝Report Writing Assistant 📚Citation Generator ⏱️Presentation Timer 📐微分積分ビジュアライザー 📈回帰分析ツール 🧮統計検定計算機 📅学期スケジューラー