Square Root Calculator
Principal nonnegative square root. Enter your own values; the result updates only when you run the tool.
Your inputs
Use consistent units. Examples appear below each field.
Your result
Ready when you are.
Make the numbers useful.
Fill in the input panel and run the tool. Your answer and its calculation method will appear here.
How square root calculator works
Principal nonnegative square root.
Try this example
- Nonnegative number
- 81
9
Good to know
Which values should I enter?
Use the units shown in each label. Principal nonnegative square root.
Are my inputs saved automatically?
No. Recent tools contain tool names only. Inputs and results are stored only when you explicitly choose Save while signed in.
Can I share this tool?
Share the tool link. It opens a blank tool and does not include your private inputs or result.
Keep going
Related tools for the same kind of task.
Percentage Calculator
Percentage of a value = percentage / 100 × value. Enter your own values; the result updates only when you run the tool.
Use this toolPercentage Change Calculator
Relative change = (new − original) / original × 100. Enter your own values; the result updates only when you run the tool.
Use this toolPercentage of Total
Part as a percentage = part / whole × 100. Enter your own values; the result updates only when you run the tool.
Use this toolFraction Calculator
Exact rational arithmetic with a reduced fraction result. Enter your own values; the result updates only when you run the tool.
Use this tool