Universal Unit Converter

What is Unit Converter?

A single-pane unit converter covering the most common physical quantities, each with its own unit list and precise conversion factors.

How it works

Every unit is defined relative to a base unit per category, so conversion is always value × (from factor ÷ to factor), with temperature handled by its own formulas.

1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Realistic sample

Paste or type any realistic input — the tool computes the result locally and instantly.

Common mistakes

Expecting a server round-trip

Nothing is uploaded — every tool in this category runs entirely in your browser.