All your calculators, one place

Everyday tools, advanced math, and interactive graphing — free & instant.

Everyday

🔢
Basic Calculator
Add, subtract, multiply, divide
%
Percentage
% of, % change, markup & more
🍽️
Tip Calculator
Split bills & calculate tips
🎂
Age Calculator
Exact age & date difference
📅
Date Difference
Days, weeks, months between dates
📐
Unit Converter
Length, weight, temp & more

Finance

🏦
Loan / Mortgage
Monthly payment & amortization
📈
Compound Interest
Savings growth over time

Health

⚖️
BMI Calculator
Body mass index & category
🥗
Calorie / TDEE
Daily calorie needs

Math & Science

🔬
Scientific
Trig, log, exp, constants
📊
Statistics
Mean, median, std dev, more
🧮
Matrix Calculator
Add, multiply, determinant, inverse
✏️
Equation Solver
Linear, quadratic & systems
💻
Number Base
Binary, octal, hex conversions
📉
Function Grapher
Plot any math function interactively