Power Calculators

↔️ Midpoint Calculator

Find the midpoint between two numbers using the arithmetic mean of the two endpoints.

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Enter details

Midpoint
20
Distance Between Values
20

Also available in our Android app, with charts and full breakdown tables.

📘 About the Midpoint

The midpoint is the value exactly halfway between two numbers on a number line.

The same arithmetic formula is also used for the midpoint of two coordinate values independently.

🧮 Formula

Midpoint
Midpoint = (a + b) ÷ 2
Distance
Distance = |b − a|

Where

  • a = first endpoint
  • b = second endpoint
The two inputs are treated as endpoints on a number line.

✏️ Worked example

Midpoint of 10 and 30

You enter
First Number10
Second Number30
You get
Midpoint20
Distance Between Values20

The midpoint is 20.

Try this example →

🧭 How to use this calculator

What you enter

  • First Number
  • Second Number

What you get

  • Midpoint
  • Distance Between Values

💡 Uses

  • Finding the center of an interval.
  • Coordinate geometry.
  • Checking equally spaced endpoints.

❓ Frequently asked questions

How do you find the midpoint of two numbers?

Add the two numbers and divide their sum by two.

Can the midpoint be negative?

Yes. The formula works for negative and positive endpoints.