Quick arithmetic: add, subtract, multiply, divide, percent, and powers.
A basic calculator handles quick everyday math, addition, subtraction, multiplication, division, powers, and percentages, right in your browser.
Sometimes you just need to add, subtract, multiply, or divide two numbers, or find a percentage, without opening a spreadsheet. This basic calculator does that instantly and privately in your browser. Pick an operation, enter two numbers, and get the answer.
For money questions, loan payments, savings growth, taxes, a purpose-built calculator does the heavy lifting and shows the method, which is why SumWize offers a full library of them. Use this for quick arithmetic, and reach for a specialized calculator when the question involves interest, time, or taxes.
Add, subtract, multiply, divide, raise to a power, and find a percentage of a number, quick two-number arithmetic.
Yes, the calculation runs entirely in your browser. Nothing is sent or stored.
For anything involving interest, time, or taxes, loans, savings, retirement, use a specialized calculator that applies the right formula and shows the method.
See the exact formula and a worked example on our methodology page.