Addition, subtraction, multiplication, division, percentage & square root
Select Basic for four operations (+, −, ×, ÷, ^), Percentage for percent calculations, or Square Root for root calculations.
Type your numbers into the input fields. The result updates instantly when you click Calculate.
The result appears in the large display area at the top. All calculations are performed locally in your browser.
Yes, all fields accept decimal numbers. You can enter values like 3.14, 0.5, or -7.5.
Enter the original value and the new value. The calculator shows the percentage increase or decrease. For example, from 100 to 150 = +50% change.