Distance Calculator

Enter values and press Calculate.

Tip: Use Cartesian for x/y coordinates. Use Haversine for geographic lat/lon (degrees).

Distance Calculator: Calculate Distance Online Easily

Introduction

A Distance Calculator is a practical online tool that helps you measure the distance between two points quickly and accurately. Instead of relying on manual maps or complex formulas, you can simply enter the coordinates or locations, and the calculator instantly provides the result.

This tool is useful for travelers, drivers, hikers, delivery services, and even students learning about geometry or navigation. Whether you want to know how far two cities are, the shortest driving distance, or the straight-line (air) distance, a Distance Calculator online saves time and ensures accuracy.

Formula / Working

The tool can calculate distance in different ways, depending on the input:

Straight-Line (Euclidean Distance):
If two points are given in a plane with coordinates (x1,y1)(x_1, y_1)(x1,y1) and (x2,y2)(x_2, y_2)(x2,y2): d=(x2−x1)2+(y2−y1)2d = \sqrt{(x_2 – x_1)^2 + (y_2 – y_1)^2}d=(x2−x1)2+(y2−y1)2
Geographic Distance (Haversine Formula):
For locations on Earth using latitude and longitude: d=2r⋅arcsin⁡(sin⁡2(Δϕ2)+cos⁡(ϕ1)cos⁡(ϕ2)sin⁡2(Δλ2))d = 2r \cdot \arcsin\left(\sqrt{\sin^2\left(\frac{\Delta \phi}{2}\right) + \cos(\phi_1)\cos(\phi_2)\sin^2\left(\frac{\Delta \lambda}{2}\right)}\right)d=2r⋅arcsin(sin2(2Δϕ)+cos(ϕ1)cos(ϕ2)sin2(2Δλ)) where:
- rrr = Earth’s radius (~6371 km)
- ϕ\phiϕ = latitude in radians
- λ\lambdaλ = longitude in radians
Driving Distance:
Calculated using map data (roads, traffic, etc.), which online calculators provide instantly.

Step-by-Step Usage

Using the Distance Calculator online is simple:

Open the tool in your browser.
Select the type of distance (straight-line, driving, or geographic).
Enter the required details:
- For cities: type in city names.
- For coordinates: enter latitude and longitude values.
Click the Calculate button.
Instantly view the distance result (in kilometers or miles).

Examples

Example 1: Straight-Line Distance

Point A = (2, 3), Point B = (7, 8) d=(7−2)2+(8−3)2=25+25=50≈7.07d = \sqrt{(7 – 2)^2 + (8 – 3)^2} = \sqrt{25 + 25} = \sqrt{50} \approx 7.07d=(7−2)2+(8−3)2=25+25=50≈7.07

✅ The calculator shows 7.07 units.

Example 2: City-to-City Distance

Distance between New York City and Washington D.C.
Using geographic distance, the calculator gives ~329 km (204 miles) straight-line distance.

Example 3: Driving Distance

Driving from Los Angeles, CA to Las Vegas, NV
The calculator shows ~435 km (270 miles) via road.

FAQs

Q1. What is a distance calculator?
It is an online tool that computes the distance between two locations or points using mathematical formulas or map data.

Q2. Can I calculate both driving and straight-line distance?
Yes, many distance calculators allow you to check both air distance and driving routes.

Q3. Is the distance result always exact?
Straight-line calculations are exact, while driving distances depend on roads and routes, which may vary.

Q4. Can I switch between kilometers and miles?
Yes, most calculators let you toggle between km and miles.

Q5. Is this tool free to use?
Yes, most online distance calculators are completely free and accessible on any device.