Temperature Conversion Guide
Temperature is measured using three main scales: Celsius (used globally for everyday purposes), Fahrenheit (used in the United States), and Kelvin (used in scientific applications). Understanding how to convert between these scales is essential for travel, cooking, and science.
Conversion Formulas
Celsius to Fahrenheit
°F = (°C × 9/5) + 32
Fahrenheit to Celsius
°C = (°F - 32) × 5/9
Celsius to Kelvin
K = °C + 273.15
Key Temperature Points
| Description | Celsius | Fahrenheit | Kelvin |
|---|---|---|---|
| Absolute Zero | -273.15° | -459.67° | 0 |
| Water Freezes | 0° | 32° | 273.15 |
| Room Temp | 20-22° | 68-72° | 293-295 |
| Body Temp | 37° | 98.6° | 310.15 |
| Water Boils | 100° | 212° | 373.15 |
FAQ
Why does -40° equal both Celsius and Fahrenheit?
This is the only point where both scales intersect. Using the formula: (-40 × 9/5) + 32 = -40.
What is Kelvin used for?
Kelvin is the SI unit for temperature, used in scientific contexts. It starts at absolute zero (-273.15°C), where all molecular motion stops.