Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and other temperature scales instantly.
Current Temperature
20°C
Celsius
20
°C (Celsius)
Water freezes at 0°C
Water boils at 100°C
Water boils at 100°C
68
°F (Fahrenheit)
Water freezes at 32°F
Water boils at 212°F
Water boils at 212°F
293.15
K (Kelvin)
Absolute zero: 0K
Room temp: ~293K
Room temp: ~293K
527.67
°R (Rankine)
Absolute zero: 0°R
Fahrenheit scale in absolute
Fahrenheit scale in absolute
Enter Temperature
Common Temperature Comparisons
0°C / 32°F
Water Freezing Point
20°C / 68°F
Room Temperature
37°C / 98.6°F
Human Body Temperature
100°C / 212°F
Water Boiling Point
500°C / 932°F
Wood Fire Temperature
5500°C / 9932°F
Sun's Surface
Temperature Reference Table
| Description | °C | °F | K |
|---|
Conversion Formulas
Celsius to Fahrenheit:
°F = (°C × 9/5) + 32
°F = (°C × 9/5) + 32
Fahrenheit to Celsius:
°C = (°F - 32) × 5/9
°C = (°F - 32) × 5/9
Celsius to Kelvin:
K = °C + 273.15
K = °C + 273.15
Kelvin to Celsius:
°C = K - 273.15
°C = K - 273.15
Fahrenheit to Kelvin:
K = (°F + 459.67) × 5/9
K = (°F + 459.67) × 5/9
Kelvin to Fahrenheit:
°F = (K × 9/5) - 459.67
°F = (K × 9/5) - 459.67
Weather Temperature Ranges
-20°C
Extreme Cold
-4°F
0°C
Freezing
32°F
10°C
Cool
50°F
20°C
Comfortable
68°F
30°C
Warm
86°F
40°C
Hot
104°F
Temperature Scale History
About Temperature Conversion
Temperature is a physical quantity that expresses hot and cold. It is measured with a thermometer calibrated in various temperature scales.
Common Temperature Scales:
- Celsius (°C): Used worldwide (except USA). Based on water freezing (0°C) and boiling (100°C) points.
- Fahrenheit (°F): Used primarily in the United States. Water freezes at 32°F and boils at 212°F.
- Kelvin (K): The SI base unit of temperature. Absolute zero (0K) is the lowest possible temperature.
- Rankine (°R): Absolute temperature scale using Fahrenheit degrees. Used in some engineering fields.
Interesting Facts:
- The coldest temperature ever recorded on Earth was -89.2°C (-128.6°F) in Antarctica
- The hottest temperature ever recorded on Earth was 56.7°C (134°F) in Death Valley, California
- Absolute zero (0K, -273.15°C, -459.67°F) is the theoretical lowest possible temperature
- The Sun's core temperature is about 15 million °C (27 million °F)
- Room temperature is typically considered 20-25°C (68-77°F)
Quick Conversions:
- To convert Celsius to Fahrenheit: Multiply by 1.8 and add 32
- To convert Fahrenheit to Celsius: Subtract 32 and multiply by 5/9
- A quick estimate: °F ≈ (°C × 2) + 30 (close enough for weather temperatures)