Calculators

Base converters, binary math, IP subnet, BMI, loan, and matrix calculators.

14 free tools — no signup required

Number Base Converter

Convert numbers between decimal, binary, octal, and hexadecimal instantly.

Generate random integers or decimals with custom range and count.

Perform arithmetic on binary numbers: addition, subtraction, multiplication, division.

Evaluate boolean logic expressions: AND, OR, XOR, NOT, NAND, NOR, XNOR.

Perform bitwise AND, OR, XOR, NOT, left shift, and right shift operations.

Calculate network address, broadcast, subnet mask, and host range for any IP/CIDR.

Calculate the exact difference between two dates including years, months, and days.

Calculate your Body Mass Index. Supports metric (kg/cm) and imperial (lbs/in) units.

Calculate monthly payments, total interest, and generate an amortization schedule.

Add, multiply, transpose matrices of any size. Enter matrices row by row.

Analyze text: character count, word count, frequency analysis, unique words, and more.

Add or subtract days, months, or years from any date. Get the exact resulting date instantly.

Convert Arabic numbers to Chinese lower, upper, and RMB uppercase forms.

Convert between length, weight, and temperature units instantly. Supports metric and imperial. Runs entirely in your browser.