Temperature conversion is one of the most common unit conversions. While Celsius dominates globally, Fahrenheit is standard in the US, and Kelvin is essential in science. This converter handles all four major temperature scales with instant conversion, formula explanations, and handy reference points.
How to Use
Enter a temperature in any field and all others update instantly:
- Celsius (°C): Water freezes at 0°C, boils at 100°C
- Fahrenheit (°F): Water freezes at 32°F, boils at 212°F
- Kelvin (K): Absolute zero = 0K, no negative values
- Rankine (°R): Fahrenheit-based absolute scale
Conversion Formulas
- °F = °C × 9/5 + 32
- °C = (°F − 32) × 5/9
- K = °C + 273.15
- °R = °F + 459.67
Understanding Temperature Scales
Celsius: Based on water. Fahrenheit: Daniel Fahrenheit's scale. Kelvin: SI unit, starts at absolute zero. Rankine: Like Kelvin but using Fahrenheit intervals.
Step-by-Step Instructions
- 1Enter a temperature value in any field.
- 2All other temperature scales update instantly.
- 3View the conversion formulas used.
- 4Check notable reference points for context.
- 5Use the visual bar to compare relative positions.