All-in-one Calculator is the most comprehensive calculator app for Android with many useful additional features.

MAIN CALCULATOR

• Perform basic calculations such as addition, subtraction, multiplication, and division
• Advanced mode supports scientific operations such as trigonometric, logarithmic, and exponential functions
• Percentage key to quickly add percentage to a number or subtract percentage from a number

ADDITIONAL CALCULATORS

Unit conversion
• Supports all common units used for measuring length, mass, temperature, area and volume

Construction
• Right triangle calculator to help with 3-4-5 rule
• Area and volume of geometric shapes
• Land area calculator using compass

Finance
• Finance module has calculators for savings and loan repayment
• Interest calculation using simple and compound interest
• Currency converter (not realtime, currency rates updated 4 times a day)

Everyday Math
• Add/ subtract fractional numbers
• Calculators for finding discount price, tip amount and price per unit when out shopping or dining
• Calculate profit margin and tax-included/ tax-excluded price of goods and services

Date/ Time
• Calculate past and future dates by adding/ subtracting days, weeks, or months
• Days between two dates

Health
• Age calculator
• BMI calculator