All-In-One Calculator

All-In-One Calculator combines a clean scientific calculator with 50+ calculators and unit converters for everyday use. Get more from your calculator — for FREE!

🏆 Trusted by over 10 MILLION users worldwide!

Scientific calculator

• Trigonometry, logarithms, exponents

• Graphing calculator: plot functions

• Complex number support (√-1 → i)

• Fraction results (0.3333 → 1/3)

• Memory buttons: MC, M+, M-, MR

• Calculator history with notes

Currency converter

• 160+ currencies, live exchange rates

• Convert multiple currencies at once

• Works 100% offline

Unit converter

• Length, weight, volume, temperature

• Area, speed, pressure, power, energy

• Digital storage, cooking, shoe size

• Regional, historic & scientific units

• Combined units (ft + in, L + mL)

Math calculators

• Percentage calculator & discount

• Average & proportion calculator

• Equation solver: linear, quadratic, etc.

• Area & volume of shapes and bodies

• Step-by-step solutions

Finance calculators

• Tip calculator & sales tax calculator

• Loan & interest calculator

• Unit price comparison

Date & health

• Age calculator & date calculator

• Time between two dates

• BMI, body fat & calorie calculator

Extra features

• Cloud sync across your devices

• Calculator widget for your home screen

• Simple, classic & modern layouts

• AMOLED dark theme to save battery

👋 A note from the developer

Hi, I'm Andrei, the developer behind this app. My goal since 2016 has been to create the most comprehensive, clean and easy-to-use calculator on the market, continuously improving it based on your feedback.

Try it out and let me know what you think!