Distance Between 3 Points Calculator

Imagine you’re working with three separate locations — on a map, a diagram, or in 3D space. You need to know how far apart they are.

You could draw lines, do the math, and measure angles. Or you could just use the Distance Between 3 Points Calculator.

This calculator helps you instantly determine the total, average, or individual distances between three points. It’s perfect for anyone dealing with geometry, spatial design, physics, or real-world positioning.

What Is the Distance Between 3 Points?

The “distance between 3 points” means the lengths of the three sides formed by connecting each pair of points.

In math or 3D modeling, it helps you:

Formula and Variables

To calculate distances between three points (A, B, and C), you use the standard distance formula for each pair:

🧮 Distance = √[(x₂ − x₁)² + (y₂ − y₁)² + (z₂ − z₁)²]

Contents

1 🧮 Distance = √[(x₂ − x₁)² + (y₂ − y₁)² + (z₂ − z₁)²]
2 📊 Variable Table
3 FAQs:
4 Conclusion:

Apply this three times — AB, BC, and CA — to get all distances.

📊 Variable Table

Variable	Meaning
x, y, z	Coordinates of each point
Distance	Straight-line distance between two points
A, B, C	Labels for each of the three points

If you’re in 2D, just drop the z values and apply the same formula.

Example: Calculating Distance Between 3 Points

Let’s say:

Point A = (1, 2, 3)
Point B = (4, 6, 3)
Point C = (4, 2, 7)

Now use the formula:

AB = √[(4−1)² + (6−2)² + (3−3)²] = √[9 + 16 + 0] = √25 = 5
BC = √[(4−4)² + (2−6)² + (7−3)²] = √[0 + 16 + 16] = √32 ≈ 5.66
CA = √[(1−4)² + (2−2)² + (3−7)²] = √[9 + 0 + 16] = √25 = 5

How to Use the Calculator

Input the x, y (and z) coordinates for all three points
Click calculate
View results – distances between A-B, B-C, and C-A, and optionally the total or average

It’s that simple — no manual squaring, adding, or square-rooting.

Where This Calculator Is Used

📐 Geometry and trigonometry – solving triangle and polygon problems
🧱 Architecture – mapping spatial layouts
🛰️ GPS systems – calculating multiple point distances
🎮 Game development – tracking 3D object positions
🚀 Physics and mechanics – analyzing spatial motion
🧪 Scientific simulations – modeling particle or object movement

Wherever three points meet, this tool adds clarity.

Tips for Accurate Results

✅ Always input each point’s full coordinates
✅ Use consistent units (e.g., all in meters or feet)
✅ Double-check sign (+/−) on coordinates
✅ If using 2D, leave z as 0 or blank
✅ Label your points if using for design or analysis

Common Mistakes to Avoid

❌ Mixing units (e.g., meters with centimeters)
❌ Entering wrong coordinates (flipping x and y)
❌ Using incorrect formulas in manual calculation
❌ Skipping 3D when z-differences matter
❌ Assuming equal spacing without checking

Accuracy starts with careful input.

FAQs:

1. What does this calculator actually measure?
It gives you the straight-line distance between each pair of three points.

2. Can I use this for both 2D and 3D?
Yes. Just skip the z-values for 2D or set them to 0.

3. What’s the benefit over manual calculation?
No room for math errors — the calculator handles every step instantly.

4. Is it useful in real-world mapping?
Absolutely. You can input coordinates from maps, blueprints, or GPS data.

5. Can I find the total or average distance?
Yes. Add the three distances for total or divide by 3 for average.

6. Does it calculate angles too?
No. This calculator focuses on distances. Use a triangle angle calculator for that.

Conclusion:

The Distance Between 3 Points Calculator is your shortcut to spatial clarity. Whether you’re designing, teaching, building, or analyzing — you can trust this tool to give you precise, reliable distances in 2D or 3D.

Save time, avoid errors, and measure smarter. Because when three points connect — the math should never be a mystery.

Distance Between 3 Points Calculator