What does this tool do?
Unit Converter is a free tool that instantly converts values across seven everyday categories: length, weight, temperature, area, volume, speed, and data. It is a practical daily helper for students, DIY enthusiasts, travelers, and anyone scaling a recipe in the kitchen.
How to use it
- Enter your values into the fields.
- The result is calculated instantly.
- Read or copy the result.
See every conversion from one value at a glance
Pick a category, type a value, and the tool shows not just your chosen target unit but every other unit in that category in a tidy grid. Type 1 meter and you instantly see feet, inches, yards, and miles side by side. Click any card in the grid to make it the main target unit, and use the copy button to put the result on your clipboard with a single tap.
Temperature and data use the correct formulas
Temperature is computed with real conversion formulas rather than a single multiplier, so offsets between Celsius, Fahrenheit, and Kelvin are applied correctly. In the data category, bits and bytes use binary base-1024 math (one kilobyte equals 1024 bytes), which keeps file-size and bandwidth estimates consistent. Everything runs in your browser, so your input never leaves your device.
Frequently asked questions
Why does temperature convert differently from other units?
Units like length and weight scale by a fixed factor, but Celsius, Fahrenheit, and Kelvin also differ by a constant offset. The tool applies a dedicated formula for each scale instead of plain multiplication, so results such as -40°C = -40°F come out correctly.
In the data category, is a kilobyte 1000 or 1024 bytes?
This tool uses binary base-1024: one kilobyte is 1024 bytes and one megabyte is 1024 kilobytes. This matches how most operating systems report disk and memory sizes.
How many digits do the results show?
Results are rounded to about seven significant figures, and trailing zeros are trimmed automatically so both very small and very large values stay readable.
Is Unit Converter free?
Yes. Unit Converter and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. Unit Converter works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.