Question 1

Which unit categories does this converter support?

Accepted Answer

Six categories: Length (metre, kilometre, mile, yard, foot, inch, nautical mile, light year), Weight (kilogram, gram, pound, ounce, stone, US ton, tonne), Temperature (Celsius, Fahrenheit, Kelvin, Rankine), Volume (litre, US/UK gallon, quart, pint, cup, fluid ounce, tablespoon, teaspoon), Area (square metre, hectare, acre, square mile/yard/foot/inch), and Speed (m/s, km/h, mph, knot, ft/s, Mach).

Question 2

How does the tool convert temperature between Celsius, Fahrenheit, Kelvin, and Rankine?

Accepted Answer

Unlike other categories that use a simple multiplication factor, temperature conversion uses dedicated formulas since the scales have different zero points: for example Fahrenheit to Celsius is (F-32)*5/9, and Celsius to Kelvin is C+273.15. The tool converts through Celsius as an intermediate base value for all four temperature units.

Question 3

What conversion factor does the tool use for Mach and nautical miles?

Accepted Answer

Mach is calculated using the speed of sound at 343 m/s (standard for dry air at 20°C), and a nautical mile is converted using the international definition of exactly 1,852 metres.

Question 4

Is my conversion data sent to a server?

Accepted Answer

No. All conversions run entirely in your browser using JavaScript — no data is uploaded, no login is required, and results update instantly as you type.