Find Vector Length
Calculate magnitude. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Find Vector Length
- 1. Paste your vector. Enter one or more vectors in the input pane, one per line, written as components in parentheses such as (3, 4).
- 2. Set the decimal precision. Enter a value in Decimal places to control how many digits after the decimal point appear in each vector's computed length.
- 3. Copy the length. Copy the resulting magnitude, computed as the square root of the sum of squared components, into your physics, graphics, or homework calculation.
When to use Find Vector Length
Find Vector Length computes the Euclidean magnitude of one or more vectors, the straight-line distance from the origin to the point the vector represents. It is the everyday notion of a vector's size.
- Measuring speed from a velocity vector. A velocity vector with x and y components needs to be converted into a single speed value, and computing its length gives the scalar speed directly.
- Normalizing a vector for graphics or physics. Before dividing a vector by its own length to produce a unit vector, you need the exact magnitude, and this computes it to the precision you specify.
- Checking a distance calculation. The distance between two points equals the length of the vector connecting them, and computing that length here confirms a manual distance formula result.
- Verifying a homework magnitude answer. A trigonometry or vector course asks for the magnitude of a given vector, and this confirms your manual square-root-of-sum-of-squares calculation is correct.
Examples
Length of a 2D vector
Input
(3, 4)
Output
5.000000
One vector per line
Input
(1, 1) (2, 3, 6)
Output
1.414214 7.000000
About the Find Vector Length tool
Find Vector Length does its work locally, right in the browser. Calculate magnitude. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Math Tools collection on EditSafely, a set of 234 small, focused Math utilities that share the same instant, private workspace.
You can shape the output with the Decimal places setting, and the result refreshes the moment you change it. 2 worked examples further down the page show exactly what the tool produces for real inputs.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Find Vector Length free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.