Simple calculator

From quick calculations to scientific functions, currency conversion, and daily planning, Simple Calculator puts useful tools together in one easy-to-use Android app.

Choose a familiar Classic calculator or a colorful modern design, then switch to specialized calculators whenever you need them.

🧮 BASIC & SCIENTIFIC CALCULATORS

• Basic Calculator – Add, subtract, multiply, divide, work with decimals, calculate square roots, and store or recall numbers.

• Scientific Calculator – Explore trigonometric functions, logarithms, powers, roots, parentheses, constants, and more.

💱 CONVERTERS FOR EVERYDAY LIFE

• Currency Converter – Convert between currencies using downloaded reference exchange rates. Use saved rates offline and refresh them when connected to the internet.

• Unit Converter – Convert measurements without switching between separate apps.

💰 SHOPPING & FINANCIAL TOOLS

• Tip & Split Bill – Work out tips and split a bill.

• Discount & Tax – Calculate sale discounts, tax amounts, savings, and final prices.

• Loan Calculator – Estimate repayments to help plan borrowing costs.

📅 PERSONAL & DATE TOOLS

• Date & Age Calculator – Calculate ages and date differences, or add and subtract time.

• BMI Calculator – Estimate body mass index using metric or imperial measurements, with an adult BMI classification. BMI is a screening measure, not a medical diagnosis.

🕘 CALCULATION HISTORY

Review previously saved calculations and results, check when they were made, and delete individual entries or clear your history.

Calculation history is stored locally on your device.

⭐ QUICK ACCESS WITH FAVORITES

Mark frequently used calculators as favorites so they're easier to find from the navigation menu.

🎨 CLASSIC LOOK OR MODERN THEMES

Keep the familiar green LCD-style Classic Calculator, or choose a Modern calculator layout with rounded keys and five color themes:

• Graphite Blue

• Miami

• Aurora

• AMOLED

• Sunset

All five themes are available for free.

⚙️ MADE FOR YOUR PREFERENCES

• Clear, easy-to-read controls and results.

• Copy calculation results.

• Optional keypad vibration.

• Optional keep-screen-on setting.

• Restore your previous calculation when reopening the app.

⭐ OPTIONAL VIP – REMOVE ADS

Enjoy the app without advertisements through a one-time VIP purchase.

• Remove advertisements permanently.

• No subscription or recurring payments.

• Restore your purchase using the same Google Play account.

VIP is optional. All calculators, converters, history, and themes remain available in the free version.

Whether you're studying, shopping, sharing a restaurant bill, checking exchange rates, or planning expenses, Simple Calculator gives you practical tools in one place.

Simple Calculator – everyday math, useful converters, and more.