Math & General Calculators
Mathematical and general purpose calculators. From basic arithmetic to complex calculations, solve mathematical problems and perform unit conversions with ease.
Popular Math Calculators
Percentage Calculator
Calculate percentages and percentage change
Age Calculator
Calculate age in years, months, and days
Date Calculator
Calculate date differences and add/subtract days
Time Calculator
Calculate time differences and conversions
Unit Converter
Convert between different units
Area Calculator
Calculate area of different shapes
All Math & General Calculators
Percentage Calculator
Calculate percentages and percentage change
Age Calculator
Calculate age in years, months, and days
Date Calculator
Calculate date differences and add/subtract days
Time Calculator
Calculate time differences and conversions
Unit Converter
Convert between different units
Area Calculator
Calculate area of different shapes
Volume Calculator
Calculate volume of different shapes
Speed Calculator
Calculate speed, time, and distance
Distance Calculator
Calculate distance between points
Temperature Converter
Convert between temperature units
Scientific Calculator
Advanced scientific calculations
Ratio Calculator
Calculate ratios and proportions
Average Calculator
Calculate mean, median, and mode
Probability Calculator
Calculate probability and combinations
Mathematical Tips & Tricks
Percentage Calculations
- • To find percentage: (Part/Whole) × 100
- • To find percentage increase: ((New-Old)/Old) × 100
- • To find percentage decrease: ((Old-New)/Old) × 100
- • Quick tip: 10% = 1/10, 25% = 1/4, 50% = 1/2
Unit Conversions
- • Length: 1 meter = 100 centimeters = 3.28 feet
- • Weight: 1 kilogram = 1000 grams = 2.2 pounds
- • Temperature: °C = (°F - 32) × 5/9
- • Area: 1 acre = 4,047 square meters
Time & Date Calculations
- • Calculate age accurately in years, months, days
- • Add or subtract days from any date
- • Find the difference between two dates
- • Consider leap years for accurate calculations
Geometry & Shapes
- • Circle area: π × radius²
- • Rectangle area: length × width
- • Triangle area: (base × height) / 2
- • Volume of cube: side³