Square Root Calculator
Finds the square root.
Result
- √x
- 7.0711
How to use the square root calculator
- Enter the number.
- The results update as you type, or press Calculate.
- Read the √x first, then the supporting figures below it.
Formula
√x is the number that multiplied by itself gives x.
Worked example
For example, with these inputs:
- Number: 50
the calculator returns:
- √x: 7.0711
Background
Calculators are best used to check working rather than replace it, especially for exams where method marks count. Work the problem by hand first, then confirm with the calculator.
In everyday life the same maths shows up in discounts, recipe scaling, renovation measurements and comparing prices per unit. Being comfortable with it saves money and avoids costly measuring mistakes.
Frequently asked questions
How does the square root calculator work?
It applies this formula: √x is the number that multiplied by itself gives x.
Can I use any units?
Yes, as long as every input uses the same unit. The answer will be in that unit (squared for areas, cubed for volumes).