Midpoint Calculator

Average the x values and average the y values. It is the point that halves the segment, which comes up constantly in drafting.

Your numbers

x₁y₁x₂y₂

Midpoint x

Midpoint y

Distance

8.4853

Formula

Midpoint x = (x₁ + x₂) ÷ 2, Midpoint y = (y₁ + y₂) ÷ 2

For three or more points, the centroid is the mean of all coordinates — the midpoint is just the two-point case.

What to enter

Input	Default	Accepted range
x₁The horizontal coordinate of the first point.	2	No limit
y₁The vertical coordinate of the first point.	4	No limit
x₂The horizontal coordinate of the second point.	8	No limit
y₂The vertical coordinate of the second point.	10	No limit

Step by step

FormulaMidpoint x = (x₁ + x₂) ÷ 2, Midpoint y = (y₁ + y₂) ÷ 2

With the default numbersMidpoint x = (2 + 8) ÷ 2, Midpoint y = (4 + 10) ÷ 2

AnswerMidpoint x = 5

Quick reference table

Results when only x₁ changes and everything else stays put.

x₁	Midpoint x	Midpoint y	Distance
1	4.5	7	9.2195
1.5	4.75	7	8.8459
2	5	7	8.4853
3	5.5	7	7.8102
4	6	7	7.2111

What each result means

Result	At default values
Midpoint xThe horizontal coordinate halfway between.	5
Midpoint yThe vertical coordinate halfway between.	7
DistanceThe straight-line distance between two points.	8.4853

Common mistakes

For three or more points, the centroid is the mean of all coordinates — the midpoint is just the two-point case.

Glossary

x₁: The horizontal coordinate of the first point.
y₁: The vertical coordinate of the first point.
x₂: The horizontal coordinate of the second point.
y₂: The vertical coordinate of the second point.
Midpoint x: The horizontal coordinate halfway between.
Midpoint y: The vertical coordinate halfway between.
Distance: The straight-line distance between two points.

Frequently asked questions

QHow is Midpoint Calculator calculated?

Midpoint x = (x₁ + x₂) ÷ 2, Midpoint y = (y₁ + y₂) ÷ 2 — Average the x values and average the y values. It is the point that halves the segment, which comes up constantly in drafting.

QCan you walk through an example?

With x₁ 2, y₁ 4, x₂ 8, y₂ 10, the answer is Midpoint x 5.

QWhat do I need to enter?

Enter x₁, y₁, x₂, y₂. The result recalculates as you type, and an empty box counts as zero.

QHow much does the answer move if I change a number?

Changing only x₁ moves the answer to x₁ 1 → Midpoint x 4.5 and x₁ 4 → Midpoint x 6. The table below lays out five steps.

QHow are the numbers rounded?

Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.

QAnything to watch out for?

For three or more points, the centroid is the mean of all coordinates — the midpoint is just the two-point case.

Related calculators

Pythagorean TheoremFind the hypotenuse from the two legs of a right triangle.Missing Leg of a Right TriangleFind the remaining side from the hypotenuse and one leg.Angle from Two SidesGet the angle of a slope from its rise and run.Trig Function ValuesEnter an angle and see sine, cosine and tangent at once.

Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.