All-in-one Calculator is a free calculator app for android featuring over 70+ calculators and unit converters categorized under finance, health, women, construction, lifestyle and everyday math.

Simple yet powerful, the following features are built into this all-in-one calculator:-

STANDARD CALCULATOR
• Includes percent key, negative sign, brackets and history viewer.
• Advanced mode includes memory keys and functions for trigonometry, roots, exponents and logarithm found in scientific calculators.

UNIT CONVERTER
• Supports temperature, length, weight, area, volume and many more measurement units.
• Currency converter.

FINANCIAL CALCULATOR
• Interest calculators using simple and compound interest
• Loan repayment and amortization schedule.
• Savings calculator with financial goal planner

FRACTIONS/ PERCENTAGE CALCULATOR
• Calculators for 3-way percentage, percentage change, percentage difference, discount pricing, profit margin, tax, tip & split bill.
• Add, subtract, multiply, divide fractions

HEALTH
• BMI, BMR, body fat percentage and calorie calculators to help you keep track of your body weight.

WOMEN
• Pregnancy calculators for baby due date, conception date & current week (gestational age).
• Ovulation calculator
• Menstrual cycle calculator that can serve as period tracker.
• Chinese baby gender predictor

CONSTRUCTION CALCULATOR
• Calculators to estimate cement, sand, gravel quantities for concrete blocks, wall plastering & brick works.
• Area and volume calculator for common geometric shapes.
• Irregular land area calculator
• Solve height and distance problems using right-triangle calculator.

LIFESTYLE
• Age and date calculator
• Fuel economy, trip fuel cost, energy consumption and many more.

This is a free, ad-supported app. If you don't like the ads, consider upgrading to the paid version.