Math
Midpoint Calculator
Use the midpoint calculator to find the point halfway between two points on a coordinate plane.
Midpoint
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- Midpoint x
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- Midpoint y
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Student quick launch
Grade planning, algebra checks, and formulas students reach for most.
Study path
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What the midpoint calculator solves
Use the midpoint calculator to find the point halfway between two points on a coordinate plane.
Formula
How to use it
- Enter both endpoints.
- Average the x-coordinates.
- Average the y-coordinates.
How to read the answer
The midpoint splits the segment into two equal-length pieces.
Common mistakes and edge cases
- Do not average x with y.
- Keep signs when adding negative coordinates.
- The midpoint can have decimals even when endpoints are integers.
Worked examples
Mixed signs
Midpoint
(5, 2)
Decimal midpoint
Midpoint
(2.5, 1.5)
Frequently asked questions
Can midpoint coordinates be fractions?+
Yes. If the coordinate sums are odd, the midpoint lands halfway between grid lines.
Does midpoint depend on slope?+
No. It averages coordinates directly.
How can I check a midpoint answer?+
Measure the horizontal and vertical change from each endpoint to the midpoint. Those changes should be equal in size and opposite in direction.
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Last updated: May 15, 2026