Midpoint of a Line Segment Calculator
Midpoint and length of a line segment between two points.
Enter your values
ⓘ Live results
Results
- Midpoint
- (2, 1)
- Segment length
- 8.9443
- Point 1
- (-2, 3)
- Point 2
- (6, -1)
Quick answer
The midpoint averages the x-coordinates and averages the y-coordinates of the two endpoints.
M = ((x1+x2)/2, (y1+y2)/2)
How to use the Midpoint of a Line Segment Calculator
- 1Enter the coordinates of both endpoints.
- 2Average the x-values and the y-values separately to get the midpoint.
- 3The distance formula gives the full segment length for reference.
Worked example
Using the values the calculator loads with:
Inputs
- Point 1 x-2
- Point 1 y3
- Point 2 x6
- Point 2 y-1
Results
- Midpoint(2, 1)
- Segment length8.9443
- Point 1(-2, 3)
- Point 2(6, -1)
Frequently asked questions
Does this work in 3D?
This tool covers 2D points; extend the same averaging pattern with a z-coordinate for 3D.
What if the points are the same?
The midpoint equals that point and the segment length is zero.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.