Question 1

Why is temperature handled differently from the rest?

Accepted Answer

Because it has offsets, not just ratios - zero Celsius is not zero Fahrenheit. Multiplying by a conversion factor, which works for every other category here, gives the wrong answer for temperature, so it is converted properly.

Question 2

Does the data category use 1000 or 1024?

Accepted Answer

Both conventions exist and disagree once you get past kilobytes, which is why a "500 GB" disk shows as less in your operating system. Check the unit labels rather than assuming.

Question 3

Can it convert between number bases?

Accepted Answer

Yes. The base converter moves a value between binary, octal, decimal and hexadecimal, which is the other half of what people come here for.

Question 4

Is it accurate enough for engineering work?

Accepted Answer

It converts at the precision JavaScript numbers give, which is ample for everyday use. For anything with a tolerance attached, verify against a reference.

Question 5

Does it need an internet connection?

Accepted Answer

Only to load the page. After that the conversions are arithmetic in your browser and work offline.

Free unit and base converter