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
Midpoint x
5
Midpoint y
7
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
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
Q. How 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.
Q. Can you walk through an example?
With x₁ 2, y₁ 4, x₂ 8, y₂ 10, the answer is Midpoint x 5.
Q. What do I need to enter?
Enter x₁, y₁, x₂, y₂. The result recalculates as you type, and an empty box counts as zero.
Q. How 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.
Q. How 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.
Q. Anything 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
Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.