All Calculators
50 calculators · +12 Islamic tools · free forever · no login
Age Calculator
Years, months, days
Date Difference
Days, weeks, months between dates
Percentage
Of, is, and change
Unit Converter
Length, weight, temp & more
Area
Area of common shapes
Volume
Volume of common solids
Speed / Distance / Time
Solve for any of the three
Number Base
Binary, octal, decimal, hex
Scientific Calculator
Full scientific keypad
Discount Calculator
Final price after % or flat discount
Ratio Calculator
Simplify ratios & solve proportions
Time Zone Converter
Convert time across 15 cities
Simple Calculator
Basic arithmetic calculator
Speed & Distance
km, miles, m/s, all formats
Temperature Converter
°C, °F, Kelvin, Rankine
Islamic Section
Zakat, Prayer Times & more
Islamic calculators live in their own dedicated section, Zakat, Nisab, Qibla, Hijri, Tasbih.