Unit Converter
Length, weight, temperature…
Input
Converted values
Everything is calculated in your browser. What you type is never sent to a server.
How to use
Converts 17 categories — length, weight, temperature, area, volume, speed, data size and more. Enter a value and it is shown in every unit of that category at once, so you never have to choose a target unit first. Nothing is uploaded.
When to use it
- Turning inches, pounds and Fahrenheit from an overseas product into metric.
- Converting traditional local units into square metres.
- Telling apart data units with different bases, such as GB and GiB.
How to use it
- Pick a category — length, weight, temperature, area, volume, speed, data and others.
- Enter the value and choose the source unit.
- Every unit in that category is converted immediately.
- Copy a single row, or use copy all results.
Good to know
- Data sizes are split into SI base-1000 (kB, MB) and IEC base-1024 (KiB, MiB), the confusion of mixing them being a classic source of "missing" capacity.
- Where US and imperial units differ, such as gallons, the system is labelled.
- Traditional East Asian units are included, using the widely accepted reference values — regional variations exist.
- Extremely large values are refused, as the result stops being meaningful.
- All calculations happen inside your browser.
Frequently asked questions
Is 1GB 1024MB or 1000MB?
Both are in use. Drive makers count 1GB = 1000MB (SI); operating systems often count 1GiB = 1024MiB (IEC). That is why a 1TB disk shows as 931GB. This tool lists both so you can see which one you are looking at.
Why does temperature behave differently?
Temperature scales have different zero points, not just different sizes. 0°C is 32°F and one degree Celsius spans 1.8 Fahrenheit degrees, so conversion needs an addition as well as a multiplication.
How exact are the traditional units?
They use the standard definitions (for example one pyeong is 400/121, about 3.3058 m²). Everyday practice sometimes rounds to 3.3, which drifts by a few square metres, so check the square-metre figure for anything contractual.
My unit is missing.
Try another category first — millilitres live under volume, for instance. If it is genuinely absent, it has not been added, because only units with a verifiable definition are included.