About Temperature converter conversion
Temperature is the one common unit conversion that is not just multiplication, because the scales start from different zero points. That is why mental shortcuts like "double it and add thirty" only work roughly. The converter applies the real formulas: °F = °C × 9/5 + 32, and K = °C + 273.15.
Typical uses include translating oven settings in an international recipe (180 °C is 356 °F, commonly rounded to 350 °F), making sense of a weather forecast abroad, checking a child's fever reading, or converting lab temperatures to Kelvin for chemistry and physics homework. Negative values work too, so −40 shows the famous point where Fahrenheit and Celsius agree.
Under the hood every reading is converted to Celsius first and then to your target scale, which keeps Fahrenheit-to-Kelvin conversions exact. Keep in mind that this converts absolute temperatures. A temperature difference — say, "it got 10 degrees warmer" — scales by 9/5 without the 32 offset, so do that one by hand.
Kelvin has no degree symbol and no negative values: 0 K is absolute zero, −273.15 °C. Water freezes at 32 °F, 0 °C, or 273.15 K, and normal body temperature is about 98.6 °F or 37 °C.
How to do it
- Use the button above to open Temperature with Fahrenheit → Celsius selected.
- Type the temperature, including a minus sign for values below zero.
- Pick a different From or To scale if you need Kelvin.
- Read the result, shown to up to ten significant digits.
- Swap to go the other way, for example Celsius to Fahrenheit for an oven dial.
