Mondo Knows Tools

Distance Calculator

Straight-line distance between two points. Use the free distance calculator below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.

Mondo says

Distance
5
Horizontal change3
Vertical change4
Midpoint(1.5, 2)

The formula

d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

Distance Calculator: common questions

What does the Distance Calculator work out?
Straight-line distance between two points. It is one of the Math tools on Mondo Knows.
How is the Distance Calculator calculated?
The maths is short enough to check by hand: d = sqrt((x2 - x1)^2 + (y2 - y1)^2).
Do I need to sign up, and is my data stored?
No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo also knows

Facts that connect to the distance calculator

Short, sourced facts that point back to this tool.

Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.